The table below shows the values of y for different values of x:

Mathematics

1 answer:

mr Goodwill [35]4 years ago

4 0

Answer:

B. y=8x

Step-by-step explanation:

Take the numbers and idk..

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A rectangular field measures 150ft by 80ft. Part of the lawn is torn up to install a walk of uniform width around it. The area o

rewona [7]

Half the area is 6000.
let x be the width of the walk so the inner rectangle has a length of 150-2x and width 80-2x and hence its area is (150-2x)(80-2x) which is equal to 6000.

so now we have an equation in terms of x which reduces to a quadratic and we solve for x

7 0

4 years ago

If a mixture of 24 lb. of cement, 48 lb. of sand, and 63 lb. of gravel is needed to make 1 cubic foot of concrete, how many poun

Radda [10]

This is a ratio problem. You only need solve the ratio of the sand.

 48 = n 
1 156

(48)(156) = 1(n) (cross multiplying)

7,488 pounds

To check: The pool deck is 156 times larger than the original amount of concrete so the amount of sand needs to be 156 times more.

4 0

4 years ago

Palace help me solve these two equations 14, 15

IrinaVladis [17]

14)

check the picture below... so.. is just a semi-circle and a rectangle, nothing fancy, get their area, sum them up.

15)

so... the voter turnout, is referring to, what's the percentage that voted, which year has the highest percentage... well, we simply check the percentage of the value provided from the total eligible voters, keeping in mind that, all eligible voters are the 100%

so.. for 1944

$\bf \begin{array}{ccllll}
amount&\%\\
------&----\\
86,607,000&100\\
47,976,670&x\\
\end{array}\implies \cfrac{86,607,000}{47,976,670}=\cfrac{100}{x}
\\\\\\
x=\cfrac{100\cdot 47,976,670}{86,607,000}\implies x\approx 55.39583405498$

for 1984

$\bf \begin{array}{ccllll}
amount&\%\\
-----&-----\\
167,727,000&100\\
92,659,000&x
\end{array}\implies \cfrac{167,727,000}{92,659,000}=\cfrac{100}{x}
\\\\\\
x=\cfrac{100\cdot 92,659,000}{167,727,000}\implies x\approx 55.2439380660239$