04/01/21

Concrete can be made by mixing cement, sand, and gravel in the ratio 3:6:8. How many cubic meters of each ingredient are needed to make 935 cubic meters of concrete?
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04/01/21

how many students who only like science?
In a class there are 50 students, with 12 students liking math and science lessons. If there are 2 students who do not like mathematics or science and the ratio of students who only like... more
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04/01/21

Math Word Problem
On his birthday, Dominic announced, “I have lived a quarter of my life as a boy, ⅕ of my life as a teenager, and ⅓ as a young man. And the 13 years since then has been the best part of my life? How... more
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04/01/21

draw a line segmant that is 6.5cm. then construct the perpendicular bisector
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04/01/21

how many answers have been answered correctly?
In the math competition it is determined that the correct answer will get a score = 2, the wrong answer will get a score = -1, while if you don't answer will get a score = 0. Of the 75 questions... more
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04/01/21

How long in years and months will it take
How long​ (in years and​ months) will it take for an investment to double at 13​% compounded​ monthly?
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04/01/21

A certain radioactive isotope has leaked into a small stream.

A certain radioactive isotope has leaked into a small stream. One hundred days after the​ leak, 2​% of the original amount of the substance remained. Determine the​ half-life of this radioactive... more
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04/01/21

Business Calculus Homework Question. Find the derivative of 𝑓(𝑥)=-6x^5 √x + -7/x^3 √x
Find the derivative of 𝑓(𝑥)=-6x^5 √x + -7/x^3 √x
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04/01/21

The long leg of a right triangle is 49 feet longer than the short leg. The hypotenuse is 61 feet long. How long are the legs of the right triangle?
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04/01/21

A right triangle has legs of 15 inches and 20 inches whose sides are changing. The short leg is decreasing by 5 in/sec and long leg is shrinking at 6 in/sec.
What is the rate of change of the hypotenuse?
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04/01/21

Write an exponential function in the form y=ab^xy=ab x that goes through points (0, 7) and (2, 252).
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03/31/21

Use synthetic division and the Remainder Theorem to find P(c). P(x) = 7x3 + 4x2 − x − 9, c = 3
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03/31/21

Five times the sum of a number and 6 is 56
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03/31/21

Find the relative maxima and relative minima, if any, of the function. (If an answer does not exist, enter DNE.) f(x) = x3 − 48x + 4 relative maximum (x, y) = relative minimum (x, y) =

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03/31/21

A total of 686 tickets were sold for the school play. They were either adult tickets or student tickets. There were 64 fewer student tickets sold than adult tickets. How many adult tickets were sold?
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03/31/21

Systems of Linear Functions word problem
Kiara's Custom Kitchen Supplies sells handmade forks and spoons. It costs the store $2 to buy the supplies to make a fork and $1 to buy the supplies to make a spoon. The store sells forks for $6... more
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03/31/21

Jim and Regina can complete one job in 4 hours when working together. When working alone, Jim works twice as quickly as Regina. How long will it take each of them to do the job when working alone?

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03/31/21

Alvin is 11 years older than Elga. The sum of their ages is 95. What is Elga's age?
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03/31/21

Y varies directly with x. If y = -8 when x = 2, find y when x = -6.
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03/31/21

Kyle and Austin are taking the baseball team on a Spring Break road trip
Kyle and Austin are taking the baseball team on a Spring Break road trip. They plan to rent a van so everyone rides together. Airport Rentals has a flat rate of $50 plus 10 cents per mile. Best... more
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03/31/21

if a shoe store buys shoes for 20$ a pair and marks them up by 75% how much would it be
paymore shoe store buys shoes for 20$ a pair and marks them up by 75%. what is the selling price of the shoes
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03/31/21

Translate the sentence into an inequality
A number c increased by 5 is less than or equal to 26
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03/31/21

Translate the sentence into an equation

Seven times the sum of a number and 3 is 9
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03/31/21

How to solve this system by elimination -8x+7y=10 and 9y=-18. Thank you so much, I really don't get this problem.
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03/31/21

Translating Words into Algebraic Expressions
one-third of five times a number
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