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3 years ago

If y varies inversely as x, and y = 10 as x = 7, find y for the x-value of 10.

Mathematics

1 answer:

Finger [1]3 years ago

3 0

I have the same question... Anyone know the answer?

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What is the solution for x in the glven equation? V9x + 7+ 12x = 7

Oliga [24]

Answer:

C. x = 2

Step-by-step explanation:

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2 years ago

Plz help me with this

forsale [732]

Answer:

$\frac{31x}{30}$

Step-by-step explanation:

Before adding we require the fractions to have a common denominator

The lowest common denominator of 2, 5 and 3 is 30, thus

$\frac{15x}{15(2)}$ + $\frac{6x}{6(5)}$ + $\frac{10x}{10(3)}$

= $\frac{15x}{30}$ + $\frac{6x}{30}$ + $\frac{10x}{30}$

Add the numerators leaving the denominator

= $\frac{15x+6x+10x}{30}$ = $\frac{31x}{30}$

5 0

3 years ago

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0=4t-16t^2 Solve this please

vaieri [72.5K]

Answer:

$\large\boxed{t=0\ \vee\ t=\dfrac{1}{4}}$

Step-by-step explanation:

$4t-16t^2=0\qquad\text{divide both sides by 4}\\\\\dfrac{4t}{4}-\dfrac{16t^2}{4}=\dfrac{0}{4}\\\\t-4t^2=0\\\\t(1-4t)=0\iff t=0\ \vee\ 1-4t=0\\\\1-4t=0\qquad\text{subtract 1 from both sides}\\\\-4t=-1\qquad\text{divide both sides by (-4)}\\\\t=\dfrac{1}{4}$

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2 years ago

A rectangle that has an area of 357 square inches is 17 inches wide. Using the formula for area (A=lw), how long is the rectangl

Lynna [10]

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Formula
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Area of rectangle = Length x Width

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Find Length
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357 = Length x 17

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Divide by 17 through
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Length = 357 ÷ 7
Length = 51 inches

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Answer: The length of the rectangle is 51 inches
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3 years ago

Jamaal bounces on a trampoline. His height, as a function of time, is modeled by y = -6x2 + 20x +4

kykrilka [37]

Answer: The function is no linear

Step-by-step explanation:

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2 years ago

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