3 years ago

25 is 32% of what number? Round to the nearest tenth if necessary.

Mathematics

2 answers:

Cloud [144]3 years ago

6 0

Answer:

78.1

Step-by-step explanation:

25 = .32 x

x = 78.125

il63 [147K]3 years ago

3 0

78.125% which rounded to the tenth is is 78.12

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Solve the system of equations by any method. 5x+9y =16 x+2y =4

Alisiya [41]

Answer:

The system of equations has one solution at (-4, 4).

Step-by-step explanation:

We are given the system of equations:

$\displaystyle\left \{ {{5x+9y=16} \atop {x+2y=4}} \right.$

We can use elimination to solve this system. We need to multiply the second equation by -5 so we can cancel out our x-terms.

$-5\times(x+2y=4) \rightarrow -5x - 10y = -20$

Therefore, our system now becomes:

$\displaystyle\left \{ {{5x+9y=16} \atop {-5x-10y=-20}} \right.$

Now, we can add these two equations together and solve for y.

$\displaystyle(5x + 9y) + (-5x - 10y) = 0 - y\\\\16 + (-20) = -4\\\\-y = -4\\\\\frac{-y}{-1}=\frac{-4}{-1}\\\\y = 4$

Now, we can substitute our value for y into one of the equations and solve for x.

$x+2(4)=4\\\\x + 8 = 4\\\\x = -4$

Therefore, our final solution is (-4, 4).

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3 years ago

What are all the prime and composite factors of 45

Helen [10]

I may not know many but here it goes...
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Hope this helped you!

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a bakery sells packages of 10 bagels for $3.69 it's a bakery start selling the bagels in packages of 12 how much would you expec

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A zucchini plant in Darnell's garden was 10 cm. tall when it was first planted. Since then, it has grown approximately 0.5 cm pe

Pavlova-9 [17]

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3 years ago

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