Math

Recent Questions

Check my math answers please!
1. Rename 4/7 as a percent. Round to the nearest tenth of a percent if necessary. A. 47% B. 1.8% C. 57.1% D. 28% 2. Rename .709 as a percent. A. 709% B. 70.9% C. 79% D. 7.09% 3 is 1/3 is equivalent to 33 1/3% what percent is equivalent to 2/3? A 33 2/3% B.150% C 66 2/3% D 65% ...

Math
You want to buy three books that are on sale 20% off. The original price of the books is 2.50,4.95, and 6.00. How much will you save? Write an distribution property and without distribution

Math (please help)
im not sure if my question posted before because it isn't showing up when I look for it In /\PRS, segment PT is an altitude and segment PX is a median. Find RS if RX = x + 7 and SX = 3x – 11 for this one I figured out that RS=4x+-4...but I think I need an actual number......

math
I'm having a little trouble solving inverse variation. I have four problems - 2 are solved using proportions, 2 are not --- why can they not all be solved using proportions? 1. y varies inversely with x. If y = 40 when x = 16, find x when y = -5 If I use a proportion for that...

Math
Calculate with distributions and without distribution: Find the value of this fractions computation: 6{1/2+2/3+3/4}

math Please help!!
Using a scale factor of 1 inch = 16 feet, what are the blueprint dimensions of a room that is 20 feet x 28 feet? A. 1.5 in x 2.5 in B. 1.25 in x 2.25 in C. 1.25 in x 1.75 in D. 1.5 in x 1.75 in Could anybody tell me how to solve this problem, please? I really need help. God ...

Math
Finished an equation and got an answer of 8 = -6 Is this no solution for the final answer?

Math
Find the value of this integer expression: -2(+3+-4+-8++7) Calculate in distributions and without distribution. There are suppose to be an exponent with +3 and when you see ++7 there is suppose to be an exponent.

Math
please check my work. 1. The number of words (x) Tina can type per minute is at Least 50. write and graph and inequality. (I broke it down to these 2 choices because the A & D was incorrect) B. x is less than or equal to 50 C. x is greater than or equal to 50 ~~~~ 2. Gavin ...

math
Matching: The segments used in reference to the triangle vs. concurrent point. Write the correct letter by the word. 1. Altitudes 2. Angle bisectors 3. Medians 4. Perpendicular Bisectors A. Centroid B. Circumcenter C. Incenter D. Orthocenter

math
In PRS, segment PT is an altitude and segment PX is a median. Find RS if RX = x + 7 and SX = 3x – 11 Find RT if RT = x – 6 and mPTR = 8x - 6

math
In ABC, segment BF is the angle bisector of ABC, Segments AE, BF, and CD are medians, and P is the centroid. Find x if DP = 4x – 3 and CP = 30. Find y if AP = y and EP = 18

math
In ABC, segment BF is the angle bisector of angle ABC, Segments AE, BF, and CD are medians, and P is the centroid.

math
please check my work. 1. The number of words (x) Tina can type per minute is at Least 50. write and graph and inequality. (I broke it down to these 2 choices because the A & D was incorrect) B. x is less than or equal to 50 C. x is greater than or equal to 50 ~~~~ 2. Gavin ...

math
Emily has a book with 200 pages , she read 150 pages , what's the percentage of books she read?

Math
Rate=15/2%, amount=₹3920, time=3years, find principal

Math, algebra
Construct a data set of 8 items that has a mean absolute deviation of 0.5 and for which average 8

Math 7 exploring two step equations practice
I need help with this question. For excersises 1-5 evaluate the expression for the given value of the variable 1. 8q+6;q=2 10 14 (My answer) 20 22

Math
A baseball player hits a ball up in the air with an upward velocity of 18 ft/sec. The equation that gives the height of the ball at any time "t" is h(t) = -8t(t) + 18t +5. How long did it take for the ball to hit the ground? Sorry I don't know how to type t squared.

Math
A stone is thrown skyward from the top of building. The distance in feet between the stone and the ground in 't' seconds is given by the function h (t) = -16t(t) -4t+ 442. How long after the stone is thrown is it 430 feet from the ground? Sorry I don't know how to type t squared.

MATH
-30 = j + 50 1)80 2)20 3)1,500 4)-80

MATH
Use mental math to solve the equation. z/-12 = -5

Math 7 A
What value of x is a solution to the equation? x – 2 = 16 1)14 2)18 3)21 4)12

Math
For questions 6–10, identify the prime factorization for the given number. 78 A. 2 × 39 ******* ???? B. 3 × 26 C. 22 × 3 × 13 D. 2 × 3 × 13 100 A. 22 × 52 B. 2 × 5 × 5***** ????? C. 10 × 10 D. 2 × 2 × 25

Math
Could you point me in the right direction? For questions 6–10, identify the prime factorization for the given number. 6 A. 2 × 2 × 3 B. 2 × 3 C. 1 × 6 D. 1 × 2 × 3 × 6 My answer is c but what does the question mean

Math
Box A contains six white marbles and five black marbles. Box B contains three white marbles and four black marbles. An experiment consists of first selecting a marble at random from Box A. The marble is transferred to Box B and then a second marble is drawn from Box B. What is...

7th grade Math
Mrs.Jackson earned a $500 bonus for signing a one-year contract to work as a nurse. Her salary is $22 per hour. If her first week's check including the bonus is 1,204, how many hours did mrs.jackson work

Physics or Math (Please Help!)
The top of the pool table is 3.05 ft from the floor. The placement of the tape is such that 0 feet aligns to the edge of the table (as shown). The winner of the competition wants to know if he has broken the world record for the break shot of 32 mph. His ball landed a distance...

7th grade Math
an online retailer charges $6.99 puls $0.55 per pound to ship electronics purchases. How many pounds is a DVD player for which the shipping charge is $11.94 plz help me

Math
Suppose a boat has to make a round trip up and down a river. The trip up takes 1 hour and is with the current. The trip back takes 6 hours. Suppose the round trip is a total of 34 miles, and that the boat's speed and the speed of the current are constant. What is the boat's ...

Physics/Math
The top of the pool table is 3.05 ft from the floor. The placement of the tape is such that 0 feet aligns to the edge of the table (as shown). The winner of the competition wants to know if he has broken the world record for the break shot of 32 mph. His ball landed a distance...

Math
Add express each sum in simplest form 1 1/4 + 2 2/5

Math
How can you use rate to compare the costs of two boxes of cereal that are different sizes?

Math
where do i put the parentheses to make this statement true 8+3x6-4-1

Math
A forest owned by the Jumbo Lumber Corporation contains 7,820 trees. If Jumbo Lumber cuts down 77 trees every day, which function can be used to find the number of trees, n, left in the forest after t days A. n(t) = 7,820 - 77t B. n(t) = 7,820t - 77(my guess) C. n(t) = (7,820-...

Math
Convert the map scale to unit rate. How many inches represent one mile? Show Your work. Interpret the meaning of unit rate. 3/10 in. = 7/8 miles

math
If 1/3 is equivalent to 33 and 1/3%, what percent is equivalent to 2/3? A. 33 and 2/3% B. 150% C. 66 and 2/3% D. 65% PLEASE HELP I NEED THE ANSWER ASAP!!!

Math
Write the ratio as a unit rate

Math
Write the ratio as a unit rate. 8 meters in 10 seconds. A. 0.8 meter per second B. 1.125 meters per second** C. 2 meters per second D. 80 meters per second

Math
Pedro and Ivan raced each other in a 24-mile bike race. After 2o minutes, Pedro traveled 5 miles. Ivan had spent the 20 minutes travelling at a rate of 16 miles per hour. Which person was in first place after 20 minutes? Use words and/or numbers to show how you determined your...

Math
What is the value of the range of the function f(x)=x^2 + 2 for the domain value 1/4? A. y=2 B. y=2 1/4*** C. y=2 1/8 D. y=2 1/16 Can anyone check my answer?

Math
Karen is applying for the nursing school at the University of Davis. Before applying, she received a breakdown of the tuition and fees from the university. Tuition: $611 per semester plus $250 per class Books: $82 per class Nursing School Fee: $19 per class Parking: $58 per ...

Math
a gym membership charges an initial fee for $100 plus a $25 free every month another gym charges $45 every month after how many months will the total cost for both gyms be the same

math
I'm a little confused about the different kinds of equations - what is the difference between exponential and quadratic, and exponential, quadratic, and linear?

Math
The next morning, Kevin meets with a client who would like to invest $20,000 into an account that pays 3.2% interest, which is compounded annually. How much money is in the account after 5 years if no withdrawals or additional deposits are made?

math
1.n-8>5 n>13 n>3 n->-3 n>-13

Math Galp
A DJ charges $250 for 1 hour of work and charges $410 for 3 hours of work. Write an equation that models this situation. Let "x" represent the number of hours worked and "y" represent the cost to hire the DJ. Thank you for the help! I appreciate it.

Math
Finally, Kevin has a client who would like to invest into an account that earns 3.2% interest, which is compounded annually. The client opens the account with an initial deposit of $4,000, and deposits an additional $4,000 into the account each year thereafter. How much money ...

Math
The client wants to know how long it will take for an initial deposit of $30000 to double at an annually compounded interest rate of 2.0% What is the doubling time (assuming no withdrawals or additional deposits are made)?

Math
Find the percent of increase or decrease. 1. The price of ratio genius for $40-$44

Math
Write the equation of a function with the following requirements: A domain of all real numbers over 3, a range of all real numbers, an x-intercept of (5,0), and a vertical asymptote at x = 3.

Math
Clea estimates that a glass contains 250.55 mL of water. The actual amount of water in the glass is 279.48 mL. To the nearest tenth of a percent, what is the percent error in Clea's estimate?

Math
How would you differentiate this equation? 1/6(2x-3)^3 -4x Here's my working u = 2x-3 y = 1/6u^3 dy/du = 1/2u^2 du/dx = 2 dy/dx = dy/du x du/dx = (2x-3)^2 -4 Is this correct? Thanks for checking!

Math
Tracy became interested in the maximal height for throwing a ball. On the internet, she finds that the maximum pitching speed of professional baseball players is 150 feet per second (about 105 miles per hour). The equation for the height y (in feet) after t seconds of a ball ...

Math
Can someone please help me? I have to turn in this homework really soon and I'm only stuck on this last question. "Describe how you would use the distributive property to simplify 39 x 5" I don't know how Distributive property works and if somebody could at least explain that ...

Math
A freight train leaves the train station 44 hours before a passenger train. The two trains are traveling in the same direction on parallel tracks. If the rate of the passenger train is 11 mph faster than the freight​ train, how fast is each train traveling if the ...

Math
x f(x) 1 30 2 36 3 42 4 48 f(x) = x +

MATH PLEASE HELP
A forest owned by the Jumbo Lumber Corporation contains 7,820 trees. If Jumbo Lumber cuts down 77 trees every day, which function can be used to find the number of trees, n, left in the forest after t days? A. n(t) = 7,820 - 77t B. n(t) = 7,820t - 77(my answer) C. n(t) = (7,...

Math
If the radius of a right circular cylinder is tripled and its altitude is cut in half, then the ratio of the volume of the original cylinder to the volume of the altered cylinder is?

math
When someone says write an exponential equation, what kind of format is that? I know a linear equation is y = mx + b, but what is an exponential equation?

math
If I have an equation, q(x) = x, and I have to identify what the graph of that would look like, isn't it just going to be a straight line? There are two straight lines to choose from -- one is horizontal across the x-axis on the 1, and the other is horizontal across the x-axis...

Math
A famous golfer tees off on a straight 390 yard par 4 and slices his drive to the right. The drive goes 280 yards from the tee. Using a​ 7-iron on his second​ shot, he hits the ball 180 yards and it lands inches from the hole. How many degrees​ (to the nearest​ degree...

math
85=5e^0.025x solve for x

Math
Emily purchased 3 trays of strawberry plants for a total 16.47 dollars. She also purchased 10 trays of ivy plants. If the ratio of the price per tray of strawberry plants to the price per tray of ivy plants is 3 to 2, what is the total cost of all of the plants?

Math
Solomon has $118. He wants to purchase concert tickets for himself and 5 friends. Each ticket costs $19. Does he have enough money? Explain. Help me please T^T.

math
Emily purchased 3 trays of strawberry plants for a total 16.47 dollars. She also purchased 10 trays of ivy plants. If the ratio of the price per tray of strawberry plants to the price per tray of ivy plants is 3 to 2, what is the total cost of all of the plants?

Math
Larry Mitchell invested part of his $27,000 advance at 5% annual simple interest and the rest at 2% annual simple interest. If his total yearly interest from both accounts was $720​, find the amount invested at each rate

Math
The cooling system of a car has a capacity of 20 liters. If the system is currently filled with a mixture that is 60​% ​antifreeze, how much of this mixture should be drained and replaced with pure antifreeze so that the system is filled with a solution that is 70% ​...

Physics or Math (Please Help!)
The top of the pool table is 2.80 ft from the floor. The placement of the tape is such that 0 feet aligns to the edge of the table (as shown). The winner of the competition wants to know if he has broken the world record for the break shot of 32 mph. His ball landed a distance...

Math
Donald Trump purchased a large box of his own books for $55,000. He gave 25 of the books to other republican nominees and then sold the rest on an Internet website for $63,000, making a profit of $15 on each one. a) How many his books were in the box? b) What was the original ...

Math
Brock Obama, Justin Trudeau and Jinping Xi decide to help Mr Blakely bathe his super cat Mike Wazowski. Brock can bathe Mike Wazowski in x minutes, Justin can bathe it in 2 minutes less than Brock, and Jinping can bathe it in 2 minutes more than Brock. When Brock and Justin ...

Math
Your brother is 1/3 your age. Your sister is 6 years older than your brother. Your sister is 10 years old. Write and solve an equation to find your age aa.

MATH PLEASE HELP
Bruce bought four packages of cornbread mix that each weighs x pounds. He also bought a package of biscuit mix that weighs pounds more than one package of cornbread mix. If the total weight of the items that Bruce bought is 31 pounds, what is the weight, in pounds, of each ...

Math
Suppose y varies directly with x, and y = 14 when x = -4. What is the value of y when x = -6 How would i do this

Math
Valentina purchased 200 beads for $48 if she needs to buy 25 more beads how much will she pay if charged the same rate

Algebra or Math help
Your friend thinks that the equation k - 3.5 = 21 is a true statement. Is your friend correct? Explain why and how you figured it out

Math Help
A rectangular prism has a square base with area 9 m2. The surface area of the prism is 78 m2. What are the dimensions of the prism?

Math
Bill wants to paint the ceiling and four walls of his bedroom. The room is 6.0 m long, 3.0 m wide and 2.4 m high. Paint comes in 4 L cans. One litre of paint covers 10 m2. What area does Bill need to paint? How many cans of paint does Bill need?

Math
An apple pie uses 4 cups of apples and 3 cups of flour. An apple cobbler uses 2 cups of apples and 3 cups of flour. You have 16 cups of apples an 15 cups of flour. When you sell these at the Farmers market you make $3.00 profit per apple pie and $2.00 profit per apple cobbler...

Math
A trapezoid has an area of 60 cm2 and a height of 5 cm. What is the sum of its parallel sides?

MATH
Fast Rental Services and Red Rent Services provide rental cars. Fast Rental Services charges a flat fee of $4.50, plus $0.75 for every mile traveled. On the other hand, Red Rent Services charges a flat fee of $7.50, plus $0.65 for every mile traveled. Which equation could be ...

MATH
Sally is evaluating some test papers. There are 80 multiple choice questions in the test. Students get two points for every correct answer and for every wrong answer or any question left blank, one point is deducted from the total score. Mick got 115 points on the test. If x ...

MATH PLZ HELP
Jerry needs to buy a used car, but only has $630.00. He wants to purchase a yellow sports car with 61,000 miles. The owner is asking $1,920.00. If he earns $120.00 per week at the Coffee Shack, which equation represents the number of weeks he is going to have to work until he ...

MATH
Sheryl has 7 more than one-third as many pairs of shorts as Katie has. If Katie has pairs of shorts, which expression describes the number of pairs of shorts Sheryl has? A.7-1/3x B.3x+7 C. (1/3 - x)-7 D. 1/3x + 7

Algebra ? Math PLS HELP
Ugh I'm so sorry you guys, you have to answer all of my questions but I am almost completely sure these are my last two. 1.Write an inequality to model the situation. The number n of people who applied for the job was at least 6. a. n > 6 b. n < 6 c. n <_6***??? d. n...

math
what is 2/9 + 4/9 simplified

MATH
A functions graph may include solutions that do not appear in its table of values True False**** ****is my answer

math
a union charges each employee a one time $100 initiation fee plus $25 union dues each month. my equation for the function is y=$25 x + $100. how do I graph this over a 12 months.

math
When solving the inequality 10x + 22 < 2, the second step should say 10x > −20 because I added -22 to both sides and I got a negative number on the right. Is this correct?

math
the cost of a banquet is $95.00 plus $15.00 for each person attending. write an equation that gives total cost as a function of the number of people attending. what is the cost for 77 people?

Math
An apple pie uses 4 cups of apples and 3 cups of flour. An apple cobbler uses 2 cups of apples and 3 cups of flour. You have 16 cups of apples an 15 cups of flour. When you sell these at the Farmers market you make $3.00 profit per apple pie and $2.00 profit per apple cobbler...

Math
is (0,3) a solution y = x + 3? yes no

Math
The cost of fish is $6.75/kg. What is the cost of 850 grams?

Math/ help please
In another calculation, Rachel needs to evaluate the expression -5fifth root square (- 400^2). What is the value of this expression?

math
Which statement best explains if the graph correctly represents the proportional relationship y = −2x? A coordinate plane is shown. Points are graphed at 2 comma 4 and negative 1 comma 2. The points are joined by a line. No, the points shown would not be part of y = −2x No...

Math
Solve the equation. 4x = 56 A. 4 B. ******* IS it THIS? 14 C. 60 D. 224

Math
During a canned food drive, Bob collected 6 times as many cans as Tom. If t represents the number of cans that Tom collected, which algebraic expression represents the number of cans that Bob collected? A. 6t B. 7t C. 6 + t D. 7 + t

MATH
Write an algebraic expression for the word phrase 8 times the product of g and h A. 8(g + h) B. 8(g – h) C. 8gh D. 8

math
what is 1.07 x 10^3 in standard form

math
mr saha bought 1.76 meter of wire and cut it into 8 equal peice . what was the length of each piece of wire.

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