2 years ago

Solve the system of equations Y=5x+12 X=4y+15

Mathematics

1 answer:

madam [21]2 years ago

3 0

Y +x is 56 so that means the answer is 56

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2 years ago

What is the smallest Square number using 5 roman numerals?

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Answer:

The answer is "1"

Step-by-step explanation:

Let 5 roman numbers are:

$\to I=1\\\\\to II=2\\\\\to III=3\\\\\to IV= 4\\\\\to V=5$

There square values are as follows:

$\to 1^2=1\\\\\to 2^2=4\\\\\to 3^2=6\\\\\to 4^2=16\\\\\to 5^2=25$

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3 years ago

1. The scale on a map reads 3 inches = 25 miles.

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Answer:

D. 62.5

Step-by-step explanation:

2 ways

7.5 ÷ 3 = 2.5

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2 years ago

How do I solve this equation?

Gnom [1K]

$2x(4-x)^{-1/2}-3(4-x)^{1/2}=(4-x)^{-1/2}\bigg(2x-3(4-x)\bigg)$

We effectively rewrite the equation as

$\dfrac{5x-12}{(4-x)^{1/2}}=0$

In order for the LHS to be defined, we need to restrict $4-x>0$ , or $x$ . Now, the LHS will vanish when the numerator is 0, which happens for

$5x-12=0\implies5x=12\implies x=\dfrac{12}5$

This value is indeed smaller than 4, so the solution is $x=\dfrac{12}5$ .

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3 years ago

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Answer:

4.7 · 10^7

Step-by-step explanation:

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2 years ago