11/13/21

Help, please i really need help with this
There are white, blue, and red boats in a marina. Two-thirds of the boats in the marina are white, 4/7 of the remaining boats are blue, and the rest are red. If there are 15 red boats, how many... more
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11/13/21

Calculus - Related Rates
The rate of change of the area of a circle is 260 in2/sec. How fast is the radius of a circle changing at the instant when its radius is 13 inches. Give units in your answer.
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11/13/21

Mathcounts Problem
A robot moving forward at a constant speed takes 2.5 hours to travel 1 kilometer. Moving forward at this same constant speed, it takes the robot 90 seconds to travel the length of a particular... more
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11/13/21

algebra word problem
Xavier wants to order CDs online. Each CD costs $17.50 and shipping is $4. He only has $90 to spend. Write an inequality to represent the situation. How many CDs can he buy without exceeding his... more
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11/12/21

the length of a rectangle is 6 less than twice the width. the perimeter is 60ft. find the dimensions of the rectangle then find the area
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11/12/21

The distance between a 16-foot flagpole and a 40-foot tree is equal to the sum of the lengths of their shadows. If the flagpole casts a 18-foot shadow, find the distance from the flagpole to the tree
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11/12/21

The product is 27 and the sum of the first plus three times the second is a minimum.
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11/12/21

find the 35th term for the arithmetic sequence 12, 20, 28
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11/12/21

algebra, compound application
Tiffany invests $1600 in one account and $2100 in an account paying 2 % higher interest. At the end of one year she had earned $190 in interest. At what rates did she invest?
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11/12/21

Math help I don’t get it
Is -5 , 10 , -20 a geometric or arithmetic , what’s the next 3 terms
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11/12/21

is X=y-1 a function
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11/12/21

A firm can produce 400 units per week. If its total cost function is C = 400 + 1000x dollars and its total revenue function is R = 1400x − x2 dollars.
How many units, x, should it produce to maximize its profit?x =  ____ unitsFind the maximum profit.$  ______
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11/12/21

If the total revenue function for a computer is R(x) = 1600x − 26x2 − x3, find the level of sales, x, that maximizes revenue and find the maximum revenue in dollars.
x = _____ computers ?R(x) = $ ______ ?
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11/12/21

Solving Radical Equations
Question. (rootx+1) - (root x-2) =1how to solve this problem step by step.and I don't know exactly how to answer is x=3
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11/12/21

What is the slope of the line that passes through the points (10,-7) and (-1, -3) ?
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11/12/21

How do i rewrite a linear expression by factoring out the coefficient of the variable?

Ex. -2x+5 3x-8 -1/2x +6 -x-10
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11/12/21

Help with this question please!!!
A colony of sharks is losing one-ninth of its population every two years. The colony currently has 150 sharks. a.) Find the annual rate considering the fact that P=8/9P0 after 2 years by... more
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11/11/21

Solving a word problem using a linear equation
Jose will rent a car for the weekend. He can choose one of two plans. The first plan has an initial fee of$59.98 and costs an additional $0.13 per mile driven. The second plan has an initial fee of... more
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11/11/21

The librarian purchased 22 copies of a best-selling book for $385.66. How much did each copy of the book cost?
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11/11/21

Melissa wants to bake a blueberry pie. At the market, blueberries cost $1.90 per pound. If she pays $4.75 for blueberries, how many pounds of blueberries does she buy?
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11/11/21

Melissa wants to bake a blueberry pie. At the market, blueberries cost $1.90 per pound. If she pays $4.75 for blueberries, how many pounds of blueberries does she buy?
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11/11/21

Colon Ratios and Proportions
2.5:150 :: 20:xWhy is the correct answer 1200? The answer I keep getting is 120. can someone show me step by step how this questions answer is 1200
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11/11/21

Solve for k from the given equation 82 = 24k - 14.answer choices k = 2 k = 4 k = 6 k = 8
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11/11/21

The points (4,4) and (1,7) fall on a particular line. What is its equation in point-slope form?
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11/11/21

HELPP ME I DONT HAVE MUCH TIMEE
Each marble bag sold by Hamad's Marble Company contains 5 yellow marbles for every 8 green marbles. If a bag has 45 yellow marbles, how many green marbles does it contain?
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