# Math

## Recent Questions

**math grade one**

Nomber 20 how many ways can you make equal groups write or draw the ways

**math**

Two triangles are similar. The ratio of their corresponding sides 1:4. 1. Find the ratio of their perimeters 2. What is the ratio of their areas

**math**

what would have a greater surface area? a cylinder that is flat and smooth or a cylinder that is threaded? I think the smooth one will because the threads remove area that needs to be covered?

**Math**

Ken planted a mongo seed. He noticed that the seed grew 1/5 times larger than the previous week. This week he measured the plant and found out that it is 10cm tall. How tall will the plant be in two weeks from now?

**math**

In a survey of 200 employees of a company regarding their 401(k) investments, the following data were obtained. 150 had investments in stock funds. 78 had investments in bond funds. 60 had investments in money market funds. 46 had investments in stock funds and bond funds. 38 ...

**math**

P=50-Q/10 ,total Cost Ofspring Water Are Given By. C(Q)=0.05Q2+2000. find output level(Q)of profit maximization.

**math**

Mrs. Dwayne has three boxes. The first box contains three red marbles and five blue marbles. The second box has four red marbles and six blue marbles. The third box has five red marbles and seven blue marbles. Mrs Dwayne pulls a marble from each box five times. but before her ...

**Math**

joe buys mugs for $2.50 each. If he sells them for $4, he can sell 60 mugs a week. For every 50 cents increase in price, he sells 6 fewer mugs per week. Determine the price which will maximize Joe's profits.

**Math**

Tickets are drawn to determine first prize money is s100, 000. Each succeeding prize paid 60% as much as the ticket before it. What was the prize money for the 6th ticket drawn? Use the appropriate formula. (Answer = $7776)

**Math**

Tickets are drawn to determine first prize money is s100, 000. Each succeeding prize paid 60% as much as the ticket before it. What was the prize money for the 6th ticket drawn? Use the appropriate formula.

**Math/Probability**

Q. If tossing a fair coin, how many tosses does it take to get two heads in a row, on average? _________________________________________________ I was a bit unsure about what 'on average' meant. I'm a bit unsure about what I tried: I considered cases of getting two ...

**Math**

Susan spent 2/5 of her money on clothes and 1/3 on pair of shoes what fraction of her money was left

**Math**

Helen calculated that she paid $1.50 per 100g for the usable part of the fish. How did Helen calculate $1.50?

**math**

divide the sum of 65/12and12/7by their difference.

**math**

Ques1- represent numberline -7/3. Ques2- divide the sum of3/8and -5/12by the reciprocal of -15/8 *16/27

**Math, science.**

If two parallel lines are intersected by a transversal, prove that the bisectors of the interior angles on the same side of the transversal intersect each other at right angles.

**Math**

What number whose sum of its digit is 26 become 6000 when rounded to the nearest thousand? List 3 pissible answer.

**Math**

A number round off to 4000.the digit in the in the hundred place is twice the digits in the tens place.the sum of the digits is 12.the number uses only different digits.find the number.

**Math**

Give a function of C that can represent the cost of buying x meals, if one meal costs P40. Prove your representation by using a table.

**Math**

Paul read his library book for 4/5 hour on Thursday, 1/6 hours on Friday, and 2/5 hour on Saturday. About how long did Paul read his library book for three days?

**Math**

If centripetal force acts towards the center of a circle, why do we get pushed to the outside of the circular path when rounding a curve? What is responsible for this sensation? Some have erroneously referred to this sensation as a centrifugal force. What do you think is ...

**math/statistics**

In a survey of 200 employees of a company regarding their 401(k) investments, the following data were obtained. 150 had investments in stock funds. 78 had investments in bond funds. 60 had investments in money market funds. 46 had investments in stock funds and bond funds. 38 ...

**math/statistics**

In the Numbers Game, a state lottery, four numbers are drawn with replacement from an urn containing balls numbered 0-9, inclusive. Find the probability that a ticket holder has the indicated winning ticket. The first three digits in exact order.

**Math**

Leeza plays piano every Monday and Friday and violin every fifth day. On Friday, March 1, she played piano and violin. On what other day or days in March does she play both instruments?

**Math**

The sum of Tonya's parents' ages is 78 years. Each parent's age is a prime number. Both parents are more than 20 years old. Her father is older than her mother. How could each parent be?

**math**

For Jaala's school uniform, she can wear a light blue shirt with either tan or navy pants or a tan or navy skirt. How many different outfits can Jaala wear to school?

**Math**

The GCF of the number of red and blue button is 5. There are 75 red and blue buttons altogether. There are 35 more red buttons than blue buttons. How many of each color button is there?

**Math/Pre-calculus**

Assume that the number of bacteria follows an exponential growth model: P(t)=P0e^k/t. The count in the bacteria culture was 400 after 10 minutes and 1500 after 35 minutes. (a) What was the initial size of the culture? (b) Find the population after 85 minutes. (c) How many ...

**Math**

Suppose that the weather forecast calls for a 30% chance of rain on each of the three days of a long weekend. What are the odds in favour of no rain throughout the entire long weekend? Claudia and Ally are the two favourites to win an upcoming golf tournament. If Claudia is ...

**Math**

The fee for hiking a guide to explore a cave is 700 pesos. A guide only take care of maximum of 4 persons,and additional guides can be hired as needed. Represent the cost of hiring guides as a function of the number of tourist who wish to explore the cave. Thank you so much I ...

**math**

The third,fourth and eight term of A.P form first three consecutive term of G.P.if the sum of the first ten term of A.P is 85.calculate the first term of both A.P and G.P,common ratio and sum of 5 term of G.P

**math**

The third,fourth and eight term of A.P form first three consecutive term of G.P.if the sum of the first ten term of A.P is 85.calculate the first term of both A.P and G.P,common ratio and sum of 5 term of G.P

**Math**

Plutonium-239 has a half-life of 24 000 years. What percent of plutonium-239 remains after 10 000 years? (Answer=74.9%) AND After 30 hours, a sample of Plutonium 243 (PU^ 243) has decayed to 4 ^ -1/3 of its original mass. What is the half life of PU^ 243. (Answer=45 hours)

**Math**

A bacteria culture doubles every 15 minutes. If there are now 500 bacteria in the culture... How many will there be in an hour. N= 500 (2) ^60/15 The answer is 8000 but I am getting 1 x 10^12 what am I doing wrong?

**MATH HELP ASAP PLEASE!!!!!**

4x > 1.2

**MATH HELP ASAP**

The deli server put 0.25 pound (lb) of meat on each sandwich. She used the equation 0.25s = 50 to determine the number of sandwiches (s) she could make with 50 pounds of meat. What is the value of s in her equation?

**Math**

A videoke machine can be rented for 1000 pesos for 3 days but for the fourth day onwards an addition cost of 400 pesos per day I added. Represent the cost of renting a videoke machine as a piecewise function of the number of days it is rented and plot it's graph. Please kindly...

**Math**

A videoke machine can be rented for 1000 pesos for 3 days but for the fourth day onwards an addition cost of 400 pesos per day is added. Represent the cost of renting a videoke machine as a piecewise function of the number of day it is rented and plot it's graph. Please kindly...

**math urgent help**

If F (x)= 2x^2-5x-3 Determine f (-4) F (-4)=2 (-4)^2-5 (-4)-3 (I'm confused like do I use bedmas to solve this? ) F (-4)= 16-(-20)-3 F (-4)=36-3 F (-4)=33 Is that right?

**Math**

A jeepney ride costs 8 pesos for the first 4 km and each additional integer km add 1.50 pesos to the fare. Use a piecewise function to represent the jeepney fare in terms of the distance (d) in km. Please give the solution. Thank you

**math**

joann can walk a mile in 1/4 of an hour . at this rate how far can she walk in 4 hours

**Math**

Find the measure of triangle ADC if A is (3x+2) degree, B is (4x-24) degree, C is (2x+2) degree and D is x+10 degree

**math**

how can i compare my classmates in a real life situations about factoring?

**Math**

Anjolie has 40 stickers. She arranges them in an array on a page in her album. What are the possible arrays she can make? Is 40 prime or composite number?

**Math**

Aaron makes model airplanes using balsa wood. He has 14-and-35 inch strips of wood to cut into smaller pieces for wings. He wants to cut the strips into pieces of the same length. What is the longest whole number length he can cut?

**Math**

Laura makes modeling dough with 18 tablespoons salt and 27 tablespoons flour. She has scoops that hold from 1 through 10 tablespoons. If she wants to use the same scoop for the salt and the flour, what is the largest scoop she can use?

**Math**

How to plan delivery routes for for a postman /milkman .

**Math**

Ms.Dumal is making bookmarks for a school fundraiser. She has one piece of ribbon that is 72 inches long and another that is 64 inches long. She wants to cut both ribbons into smaller pieces that are all the same length for the bookmarks. What are the possible whole number ...

**Math**

Greg buys cases that hold 9 mini cars each. He fills every case. The total number of mini cars he has is either 135, 145, 155. If each car case costs $4.95, how much does Greg spend altogether?

**Math**

.larry is writing a 6 digit number .he writes the largest 1 digit number at the hundred thousands place .he also writes a number which is 3more than the smallest 1 digit number at the hundreds place and a number which is 7 less rhan the smallest 2 digit number at the ones ...

**Math**

use the triangle and the give information to solve the triangle. a=, c=, find b, a, and B

**math**

Michael is 63 years younger than Dana. 7 years ago, Dana's age was 4 times Michael's age. How old is Michael now?

**math**

An employee saves for her retirement by depositing $1000 a quarter. She deposits her money in an annuity which pays a return of 2% a year compounded quarterly. What will the value of the annuity be after ten years? n = 4*10 = 40 interest per period (quarter) Total = 1220.79 40...

**Math**

Shaun gave away 3/4 of his money and still had has $250 left. How much money did shaun have?

**Math**

Five out of twenty students wear glasses what is the probability that a student selected at random does not wear glasses

**Math**

Teach me the method for this question: if a car travels 180km on 18 litres of petrol, then on a full 40litre - tank it should travel.

**math**

An employee saves for her retirement by depositing $1000 a quarter. She deposits her money in an annuity which pays a return of 2% a year compounded quarterly. What will the value of the annuity be after ten years? This is my answer is this correct? A((1+i)^n-1)/I = 44158.85

**Math**

A lender oﬀers a choice between two loans. For loan A the lender charges 12% a year compounded 12 times a year. For loan B the lender charges 12.5% a year and compounds it once a year. Is loan A or loan B a cheaper loan for the borrower. What formula do I use to solve this?

**7TH GRADE MATH HELP!!!!!**

Hey I had to divide 7 by 20 and the answer is .35 but I need to solve it without a calculator and I dont know what I'm doing please help thanks you

**Math**

In this question we will check if a discount is actually a discount. Say you are to borrow $100 for a year at a simple interest rate of 10%. Determine the discount D and the proceeds P for this loan. Next take another look at the situation. You take away P dollars and at the ...

**math 106**

An bank client deposits some of her savings in a savings account bearing 3% annually of simple interest. The client deposits $500 and waits for interest to accumulate. How long will the client have to wait for the amount of interest to reach $60 ? Please show work!!!

**math 106**

In this question we will check if a discount is actually a discount. Say you are to borrow $100 for a year at a simple interest rate of 10%. Determine the discount D and the proceeds P for this loan. Next take another look at the situation. You take away P dollars and at the ...

**math 106**

A lender oﬀers a choice between two loans. For loan A the lender charges 12% a year compounded 12 times a year. For loan B the lender charges 12.5% a year and compounds it once a year. Is loan A or loan B a cheaper loan for the borrower. Please show work!!!

**math 106**

An employee saves for her retirement by depositing $1000 a quarter. She deposits her money in an annuity which pays a return of 2% a year compounded quarterly. What will the value of the annuity be after ten years ?

**Math**

The sum of my tens and hundreds digit is my thousands digit. My hundreds digit is 1 less than my tens digit. My ones digit is greater than 7 and a multiple of 4. My tens digit is is 3 less than my ones digit. What is my number?

**Math**

tens and hundreds digit is my thousands digit. My hundreds digit is 1 less than my tens digit. My ones digit is greater than 7 and a multiple of 4. My tens digit is is 3 less than my ones digit. What is my numbeR?

**Math**

It's 7 #s long Hint 1: The first number times the last number will always equal the last number (first*last=last) Hint 2: fourth number minus the last number equals the third number (fourth-last-third) Hint 3: first number - sixth number equals fourth number Hint 4: a two part...

**Math**

I am a three digit odd number the tens and hundreds digit are both even the digits have the sum of 11

**Math**

I am a four digit number the tens digit is greater than the ones and hundreds digit the digits have a sum of 15

**math**

Roubd off each numbers in thousands 527 039'#999 999' 4456501; 400498 '

**Math**

Bridget has a photo album with 6 photos per page. The album is full. The total number of photos in the album is either 186, 286, or 386. She pays $2.85 to preserve each page. How much does Bridget spend to preserve the entire album?

**Math**

Sondra wants to give away 940 pennies to her younger cousins. She wants to give the pennies to either 2,3,5,6,9, or 10 cousins. How many cousins can Sondra equally give the pennies to?

**Physics**

When a butterfly lands 12 cm from a concave mirror, it's image is 18 cm behind the mirror. Find the focal length 1/f=(1/do)-(1/di) 1/f=(1/12)-(1/18) 1/f=0.0833-0.0555 1/f=0.0277 f=36 I'm pretty confident w/ my math but as I understood, it's do-di if it's behind the mirror, ...

**math/statistics**

In a survey of 400 individual investors regarding subscriptions to the New York Times (NYT), Wall Street Journal (WSJ), and USA Today (UST), the following data were obtained. 120 subscribe to the NYT. 146 subscribe to the WSJ. 68 subscribe to the UST. 36 subscribe to the NYT ...

**Math**

Solve. (-10x^3+30x-20) / (-5x+5) A) 2x^2-2x+4 B) -2x^2-2x-4 C) -2x^2+2x+4 D) 2x^2+2x-4*** Simplfy x/6x-x^2 A) 1/6-x; where x=0,6 ***** B) 1/6-x ; where x= 6 C) 1/6x ; where x = 0 D) 1/6 Simplfy x-2/x^2+4x-12 A) 1/x+6; where x=-6 B) 1/x+6; where x= -6,2*** C) 1/x+2; where x=-2...

**Math**

The ratio of the blue markers to red markers is 3:7. If there are 40 total markers in the bucket,how many of the markers will be blue

**math**

Find the missing value to the nearest hundredth. tan (?) = 15

**Math**

How do you complete the square for this: y= -1/3x^2 + 2x + 4

**math**

An elevator starts out at the 1st floor. It goes up 4 floors, down 2 floors, up 5 floors, down 3 floors, up 2 floors and stops. What floor is it now on?

**Math**

An ostrich at the zoo weighs 3 times as much as Marks's pet dog. Together, the ostrich and the dogweigh 448 pounds.how much does the ostrich weigh? Please help.

**Math**

A student is asked to find positive integer solutions to this equation: 2 * 3 √x = 5 √y What is the smallest possible value of xy? (Please show working out, thank you.)

**Math-Algebra**

Tony asked his friend to guess his mathematics test score. He gave these hints to help his friend guess: -It has two digits -The digit in the tens place is two more than twice the digit in the ones place. -The number formed by reversing the order of the digits is 5 more than 3...

**math**

a + bc = -1 b + ac = -1 c + ab = -1 Which of these values of 'a' is one solution for this system of equations? A) -2 B) -1 C) 0 D) 2 Please also explain how you got the answer, thanks.

**Math**

A town y is 200km from town x in a direction 040 degree. How far is y east of x?

**Math**

Jonas wants to give away 564 trading cards to his friends. He wants to give the cards equally to either 2,3,5,6,9 or 10 friends. To how many friends can Jonas equally give trading cards to?

**Math**

Robin has 7 red beads, 27 purple beads, and 24 yellow beads. She wants to make a necklace with the pattern; red bead; 3 purple beads; 2 yellow beads. How many times can she repeat the pattern? Which color of beads will she run out of first?

**math**

What percent is 250 of 1200

**Math**

Students are making picture frames. They can choose from a brown or black picture frame, and a red, yellow, blue, or green matte. How many different picture frame and matte combinations can the students make?

**Math**

During the month of May, Jean has photography class every third day and a photography show every Saturday. On May 5 she has class and a show. During the month of May, how many more times will she have a class and a show on the same day? There are 31 days in May.

**math**

hailey is tryin to win the grand prize spinnin a wheel labeled 1 throuh 6 and hope she gets a 5 or should she roll a 2 and hope she gets the same number onb both cubes explain

**Social Studies**

I need to write a paper on a transgender role model. It can be someone in the field of art, science, math, or business leadership. Any suggestions?

**math-precalculus**

A person starts walking from his home. First, he goes 2 miles north and 3 miles west to a park. After spending the afternoon at the park, he walks 1 mile west and 4 miles south to a bar. How far is the bar from his home?

**math**

a farmer examines 25 cartons of eggs 3 contain cracked eggs whats the best prediction that in the number of cracked eggs in the delivery of 500

**Math**

This year (10 years after you first took out the loan), you check your loan balance. Only part of your payments have been going to pay down the loan; the rest has been going towards interest. You see that you still have $108,123 left to pay on your loan. Your house is now ...

**math**

what is the monthly insurance cost of a 40 unit apartment if yearly insurance is $40000?

**business math**

which of the following is not considered a current asset? > cash > business equipment > notes receivable > office supplies

**Math**

Identify the elements of the set being described by the rule 1. M= {x/x is a whole number and 2<x<8} 2. A= {2x +1/x is a whole number and 0 <x<5} 3. T= {x2/x ia an integer and -2 <x<2} 4. H= {x-5/ x is a whole number and 15 <x<20} 5. S = {x/x is a ...

**math**

A kite which is flying at a height of 215 m above the ground level descends at the rate of 5m per minute . Find its height from the ground after 30 minutes

**math**

A kite which is flying at a height of 215 m above the ground level descends at the rate of 5m per minute . Find its height from the ground after 30 minutes

**Math**

A number rounds off to 4000. The digit in the hundreds place is twice the digit in tens place. The sum of the digit is 12. The numbers uses only two different digits. Find the number.