# Math

## Recent Questions

math
As part of a school science project, Jacob bought some bulbs for a total of \$18. The cost of each bulb was \$3. How many bulbs did Jacob buy? Write an equation with a variable and state what the variable represents.

math
Alana picked p peaches. Michelle picked 18 times as many peaches as Alana. Write an expression that shows how many peaches Michelle picked.

math
The table shows the drink preferences of 50 shoppers at the mall. What is the probability that one shopper, selected at random from the 50 surveyed, preferred either Drink B or Drink A? 8/25 3/10 11/25 7/25***

math
The table shows the drink preferences of 50 shoppers at the mall. What is the probability that one shopper, selected at random from the 50 surveyed, preferred either Drink B or Drink A?

math-precalculus
sin(6x)cos(11x)+cos(6x)sin(11x)=-0.1 solve for all solutions and provide steps so I can follow.. thank you

math-precalculus
tan^3(θ)=3tan(θ) solve for all solutions.. please provide steps so I can follow

Math
Consider Mr. Smith has an apple orchard. He hires his daughter, Lucy, to pick apples and offers her two payment options: Option A: \$1.50 per bushel of apples picked Option B: 1¢ cent for picking one bushel, 3¢ cents for picking two bushels, 9¢ cents for picking three ...

Note: Your teacher will grade your responses to questions 18 and 19 to ensure that you receive proper credit for your answers. 18. You are surveying students to find out their opinion of the quality of food served in the school cafeteria. You decide to poll only those students...

math
A man travels 12km due north, then 5km due east and then back to the starting point on a straight road. What is the total distance traveled?

math
Complete the indirect proof. Given: Rectangle JKLM has an area of 36 square centimeters. Side is at least 4 centimeters long. Prove: KL ≤ 9 centimeters Assume that a. ____. Then the area of rectangle JKLM is greater than b. _____ , which contradicts the given information ...

math
A horse worth \$900 is sold by A to B at 10% loss and B sells the horse back to A at 10% profit, then the result is--- A.A loss \$9 B.B loss \$9 C.neither loss nor gain D.none The answer in the book in the answer key is (a) but I keep getting 171 as the loss of A. Some of my ...

math
The equation \$y = -6t^2 + 43t\$ describes the height (in feet) of a projectile \$t\$ seconds after it is launched from the surface of Mars at 43 feet per second. In how many seconds will the projectile first reach 77 feet in height? Express your answer as a decimal rounded to the...

math
if i were to ask all my classmates their favorite color, what type of data im i collecting?

Math
If John has p hours of homework and has worked for r hours, what part of his homework is yetc to be done? Solution:(p-r)/p or1-r/p am I correct?

Math
If a man's weekly salary is x and he saves y dollars, what part of his weekly salary does he spend?

Math
When 300 pupils are in a lecture hall,only 2/3 of the seats are occupied. How many seats are there?

Math
One day at ABC high school, 1/12 of the students were absent,and 1/5 of those present went on field trip.if the number of the students staying in school that day was 704,h0w many students are enrolled at ABC high?

Math for IT
There are 2000 students in a course. They wrote a mathematics test which was scored out of 40 and then converted to percentage. 1. Draw a flowchart that reads the name, sex and score of each student, and outputs the names of the female students that scored below 45% and how ...

Math
The average noon temperature in Sydney in january is 32 degree c .the average midnight temperature in bostone in January is -12 degree c.what is the temperature difference between two cities?

Math
An automobile dealership uses CODE = 1 for new automobiles, CODE = 2 for used automobiles, and CODE = 3 for separate accessories. A salesman’s commissions are as follows: on new automobile, 3% of the selling price but a maximum of \$300; on used automobile, 5% of the selling ...

Math
Lily was born in 100Bc and was 56 years old when she died .in what year did she die?

Math
Sana was born in 20 Bc and died in AD 42 (or CE).how old was she when she died?

Math
Highest temperature was 58degree c and lowest temperature was -88 degree c.what is the temperature deference?

math
Task 2 (6 points) Suppose you’re having a birthday party at the local bowling alley. 1. You’re trying to figure out how many people you can afford to invite. The number of guests you can invite to your party varies inversely with the price per bowler at the alley. Explain ...

Math
A biology class has 12 boys and 18 girls .what fraction of the class are boys? Solution. 12/30=2/5 Please tell me this correct or not.

Math
Explain how can tell without computing whether the quotient 1/2 divided by 6 is greater than 1 or less than 1 I think it is greater becwuse the number i start with

Math & science
If a car slows down from 15m/s to rest in 5 seconds calculate retardation

math
Tucker bought 2 bags of beans. There are b beans in each bag. Write an expression that shows how many beans Tucker bought.

math c
A farmer planted cabbages in rows. Each row had 36 cabbages planted at regular intervals of 0.5m.what is the length of each row?

math
how many books each 1.5cm thick can be kept in a shelf 1.45m high

I need help on how to work this problem out. I need step by step please. This is the word problem: On Monday, I rode 9 miles. On Sunday, I rode 4 fewer days than on Monday. On Tuesday I rode 2 times farther than Sunday. How far did I ride on those 3 days?

Math, identities and equalities
Determine the value of a, b, and c so the following equalities become true for any value of x. x^3 - 6x^2 + 15x - 7 =(x+a)^3 + bx + c If possible, could you please show how you solved it.

Math
The pressure, P, of a gas varies inversely with its volume, V. Pressure is measured in units of Pa. Suppose that a particular amount of a gas is initially at a pressure of 84 Pa at a volume of 36 L. If the volume is expanded to 216 L, what will the new pressure be? a) 6 Pa b) ...

math
A bag containing 75 sweet was shared between mark and jhon John received 15 more sweet than mark what is the ratio that the sweets were share in

Math
Which is better a truck delivery of soil or doing it yourself. Area to cover is 3500 SQ FEET with a 4 inch layer of topsoil or .33 =1156 cubic yards Your truck bed Volume of truck 80/36=2.22*69/36=1.92*20/36=.555=2.34 cubic feet 1156 cubic feet / 2.34 cubic feet= 494.01 or 494...

Math
What is 15 percent of 60

Math
If a projectile is fixed at an angle α = 60° and initial velocity, Vi =100 ft/s. Find its position at the end of 25 seconds. x = (Vi cos α)t y = -16t² + (Vi sin α)t

Math
Thinking of two whole numbers. The product of the two numbers is 28. Their difference is 3. What are the numbers?

Math
Mr. Smith wants to save for his son's college education. If he deposits \$400 each month at 3% compounded monthly, how much will he have in the account after 48 months?

math
a sum of money is shared between peter and john in a ration 3:5. john got \$9. what was the total amount shared. 5/8=9 8/5×9=14.4

If x = 2.5, 5x = ____. (Only input decimals such as 12.7 as the answer.) Answer for Blank 1:

Zoya asked the students of her class their baseball scores and recorded the scores in the table shown below: Baseball Scores Score Number of Students 0 1 1 2 2 5 3 3 4 6 5 7 6 9 Based on the table, what is the mean baseball score? 2.5 2.9 3.5****** 4.1

math
Find, in term of pie , the curved surface area of a with circular base diameter 10cm and height 12cm

math
If the cone in question 22 is made of paper, and the paper is flattened out into the sector of a circle , what is the angle of the sector

Math
Olivia is growing roses and keeps track of how much fertilizer (in ounces) she adds to the soil and how many blooms each rose bush has. She finds a linear relationship that can be modeled by the equation y = 1.345x + 4. When will Olivia only have 4 blooms?

equations math 7a
Smallside Farms sells Delicious and Empire apples. One August they sold 162 more Empire than Delicious apples. The total number of apples sold was 424. Which equation could be used to solve for n, the number of Delicious apples sold? a)2n+162=424 b)2n-162=424 c)n+162=424 d)n-...

Determine whether you can construct many, one, or no triangle(s) with each description. a)An isosceles triangle with angle measures of 40° and 100°-Many b)A right triangle with three congruent sides-one c)A scalene triangle with side lengths of 7 cm, 3 cm, and 9 cm-none

Math (Calculus II) (Volume Revolution Setup)
Take the area enclosed by the curves y = sqrt(x), y = 1, and x = 4. Rotate it around the line x = 5. Find the volume. While I understand the general problem would call for the shell method ∫[a,b] 2*pi*r*h dx With r = 5 - x and h = sqrt(x) - 1 But, what happens say if the ...

math
Determine whether you can construct many, one, or no triangle(s) with each description. a)An isosceles triangle with angle measures of 40° and 100° b)A right triangle with three congruent sides c)A scalene triangle with side lengths of 7 cm, 3 cm, and 9 cm

Math
An automobile dealership uses CODE = 1 for new automobiles, CODE = 2 for used automobiles, and CODE = 3 for separate accessories. A salesman’s commissions are as follows: on new automobile, 3% of the selling price but a maximum of \$300; on used automobile, 5% of the selling ...

Math
The amount of money Tom has is 75% of Sally's amount of money after Sally spent \$120 and Tom saved all of his money Tom's amount is 50% more than Sally's. how much money did each of them have at the beginning?

Math
In a school 4/11 of the students are girls.if there are 490 boys, find the number of girls.

Math
Express the recurring decimal into fraction. a)0.02469999999... b)123.76111111... c)542.8888888... d)789.456456456...

Math
Solve for x under the assumption that x>0. Enter your answer in interval notion using grouping symbols. X-48/x<-8

math-precalculus
help me please.. and please provide steps so I can follow. sec(2ϴ)=3... solve for all solutions on [0,2π]

Math
What is the formula for the square root of a triangle?

Math
Which is better a truck delivery of soil or doing it yourself. The yard is about 6400 sq ft What kind of pickup truck does he drive? A 2003 Ford F-150 XL. How much can the pickup carry? The truck bed is 80 inches long, 69 inches wide, and 20 inches tall. How much is the ...

Math
If I had five pies and my friends are 3and I made20 more how many pies what I have left after you add two more

Math
I need help solving these problems y=-0.4x^2+8.3x+4.3 I got 0.52 h=-16t^2+149t+30 I got 640.5 feet after 4.63 seconds 0=x^2+3x-10 I got x=5, -2 (2x-4)(2x-1)=0 I got -2, 1/2 x^2+8x=10 I got -1.1, 9.1 HELP PLEASE

Math
A square matrix A= (5 4 2 3 1 3 -2 -1) Determine the determinant of A(detA) Determine the inverse of A (A-1)

Math
A square matrix A={1 3 -1 -3 -5 8 1 8 9}.Is A skew-symmetric?

Math
Four more than the opposite of n equals 6 How u write it as an equation?

Math
Twice n,less three,equals 5 How do you write it as an equation?

math
The ticket prices for a movie are shown in the illustration. Receipts for one showing were \$1,930 for an audience of 205 people. How many general admission tickets and how many senior citizen tickets were sold?

1) Based on a survey, 3 out of 10 students like to play the flute. For a class of 700, how many flutes should the teacher pre-order? (1 point) 70 flutes 210 flutes*** 300 flutes 490 flutes 2) The probability of getting a winning scratch off ticket is 4 out of 10. If Dan buys ...

Math
The original price for a pair of sneakers was \$70. John bought them on sale for 25% off. The sales tax was 6%. How much did John pay for the sneakers, including sales tax? A \$16.80 B \$18.55 C \$52.50 D \$55.65

Math
What is the area of a triangle 4.5,4, and 3.

Math
Find the area of composite polygon shown below top 110cm. Angel side 50cm. Bottom 180cm. Side 140cm

math
the graphs of the three equations below form a triangle. find the coordinates of the triangle's vertices. 4x+y=1 2x-y=5 3y+3x=12 show work.

math
the graphs of the three equations below form a triangle. find the coordinates of the triangle's vertices. 4x+y=1 2x-y=5 3y+3x=12

math
You play racquetball at a community club. You have two options for paying for court time. Option A: You pay \$12 for court time each time you play. Option B: You buy a club membership for \$120 and then pay \$2 each time you play. a. Write and solve a linear system to determine ...

Math
Could someone help? Its on connections math test unit 6 lesson 7 14x2+4+3x-12x2-3+11x

Math
A drawer contains 2 red socks, 3 white socks, 3 blue socks. Without looking , you draw out a sock, then return it, and draw a second sock. What is the probability that the first sock is blue and the second is red? 3/8, 2/5, 29/32, 3/32

Math
The lock is numbered from 0 to 49. Each combination uses three numbers in a right, left, right pattern. Find the total number of possible combinations for the lock.

Math
n 5 x 3 - 15, 30, 45, 60 - 5, 15, 45, 135 - 0, 15, 45, 135 ** - 15, 45, 135, 405 Im just super confused about this question, i dont understant it, can someone explain it to me?

Math
At Franklin School 3/8 of the students take a bus to school, 3/5 walk and the rest bike. There are 20 students who bike to school. How many students are in the school?

Math
Show that sin (α-30°)+cos (α+30°) = (√3 - √1)/√2 × sin (α+45°)

Math
A group of 8 people spent \$78 to go to the movies. Adult tickets cost \$10 each and student tickets cost \$8 each. How many adult tickets were purchased.

Math (Probability)
A survey showed that 30% of students choose blue as their favorite color; 40% chose pink; and the other 30% chose green. If you survey 30 students from the same group, how many do you think will choose pink? 25 20 150 12 ***

Math (Probability)
A standard number cube with the numbers 1 through 6 is rolled. Find the Probability of rolling a number greater than 5. 1/6 *** 1/3 1/4 2/3 Thanks In Advance! <3

Which pair of ratios can form a true proportion? A) 1/2, 6/10 B) 6/8, 5/20 C) 3/5, 6/10 D) 3/9, 7/80

math
A boat travels from one port A to port B, travelling 126 km, upstream (against the current) at a uniform speed, and the trip takes 6 hours.  On the way back (downstream), the trip only takes 4.5 hours. Set up and solve a system of equations to find out the speed of the boat ...

Math
A bus travels 180 miles in same time a car travels 240 miles. if cars speed is 15mph faster than speed of bus, find the speed of car and bus.

math
please check this. 1. What is a reasonable distance between two cities? A.200 km* B.200 m C.200 cm D.200 mm 2. 6,501.5 km = ? m = 6,501,500 m. 3.Find the perimeter of the rectangle with length 97 inches and width 17 inches.228 in.* 211 in. 1,649 in. 114 in. 4. Each pail of ...

math
Length is 6 feet and breath is 5 feet and height is 5 feet find the volume of the water filled in the tank

math
Length is 6 feet and breath is 5 feet and height is 5 feet find how many litres of water can be filled on the tank

the formula of a volume of a cube is v = s3. find the volume of a cube with a side length of 3/4 inches.

Math
out of 80 candidates who appeared for a combined test in English and Hindi, 64 passed at least in one subject. If 45 passed in English and 52 passed in hindi. how many passed in both the subject ?

MATH
The distance between Ridgeview and Tarragon is 7.6 inches on a map If the scale on the map is 1 inch=25 miles what is the actual distance between the two towns. 19.0 32.6* 190 326

Arithmetic
32 is 40% of what number? I am brushing up on math that I haven't done in years. Could someone please explain this step-by-step to remind me how to do this kind of problem properly? Thank you!

Math
If one root of the equation x^2-px+20=0 is 4,while the equation x^2-qx+p has equal roots, then possible value of q is. A)3. B)4. C)5. D)6. I think 6 is correct. Please check it.

Math
Sarah bought bananas,apples and pears.the ratio of bananas to apples was 3 to 5 and the ratio of the apples to pears was 2 to 1.she bought 10 apples.how many pears did she buy?

Math
The product of three consecutive integers is 21 more than the cube of smallest integer.the smallest integer is.A.-3 B.-4 C.-5 D.-6

Math
(10)^20, (-20)^10, (20)^-20, (-30)^19 , (-20)^-10 , (-19)^-19 .how many positive and negative numbers from these?

Math
2log(4/x)=?

Math
What is The mean proportonal between 100 and 160

Math
A map is drawn to a scale of 1:3000.two points on the map are 9.5cm apart .what is the actual distance between the points?

math
Prove that if a triangle is inscribed in a circle,the sides of a triangle are equidistant from the centre of the circle then the triangle is equilateral

Math
The speed of the current is 7 mph. The boat travels three times slower against the current than with the current. What is the speed of the boat in still water?

Math
45% of 40 is 18% of what number?

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