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2 years ago

When solving the equation such as 3/5x = 1/9 , why would you multiply both sides of the equation by the reciprocal of 3/5 ?

1 answer:

7 0

You would multiply each side of the equation by the reciprocal of 3/5 (5/3) because would cancel out 3/5 which would leave you with x and the answer.

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C=5/9(F-32) solve for F

mina [271]

<span>F= 9/5 C + 32
or
</span><span>F= 9/5(C+32)
</span> Hoped this helped:)

7 0

2 years ago

Please help me thank you

Colt1911 [192]

Answer:

-2 $\frac{1}{10}$

Step-by-step explanation:

So this is simple substitution, $\frac{1}{2}$ (- $\frac{1}{5}$ )- $\frac{2}{3}$ (3)=> - $\frac{1}{10}$ - $\frac{6}{3}$ => $-\frac{1}{10}$ - 2= $-2\frac{1}{10}$ .

5 0

2 years ago

Read 2 more answers

3 (2x -1) = -2 (x +3)

Misha Larkins [42]

Answer:

x = 3/8 (but the fraction is negative.)

Decimal form if needed.

x = - 0.375

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2 years ago

A half-filled cylindrical water tank has a water level of 20 feet high. The tank can hold 6000 cubic feet of water. Find the dia

Alecsey [184]

Answer:

$D=13.8\ ft$

Step-by-step explanation:

we know that

If the tank half-filled with water is at 20 feet, then the height of the tank is 40 feet

The volume of the cylindrical tank is equal to

$V=\pi r^{2}h$

we have

$h=40\ ft$

$V=6,000\ ft^{3}$

assume

$\pi =3.14$

substitute and solve for r

$6,000=(3.14)r^{2}(40)$

$r^{2}=6,000/[(3.14)(40)]$

$r=6.9\ ft$

Find the diameter

Remember that the diameter is two times the radius

$D=6.9*2=13.8\ ft$

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3 years ago

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2 years ago