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beks73 [17]
3 years ago
7

The ratio of boys to girls in the 9th grade is approximately 7 to 9. There are 228 girls. How many boys are there?

Mathematics
1 answer:
Keith_Richards [23]3 years ago
7 0

Answer:

Approximately 177 boys

Step-by-step explanation:

Let

x ----> the number of boys

y ----> the number of girls

we know that

\frac{x}{y}=\frac{7}{9}

isolate the variable x

x=\frac{7}{9}y ----> equation A

y=228 ----> equation B

substitute equation B in equation A

x=\frac{7}{9}(228)

x=177.33

therefore

Approximately 177 boys

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Answer:

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Step-by-step explanation:

Given that:

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(x - 7) or (x + 5) = 0

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beks73 [17]

Answer:

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e-lub [12.9K]

Answer:

-13

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Step-by-step explanation:

A x = B

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x = A^ -1 B

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3 years ago
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Solve for X, will give you brainliest and a like
grigory [225]

Answer

Step-by-step explanation:

One solution  :

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Rearrange:

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Step by step solution :

Step  1  :

Equation at the end of step  1  :

 ((0 -  5 • (3x + 1)) +  4x) -  (10x + 2)  = 0

Step  2  :

Step  3  :

Pulling out like terms :

3.1     Pull out like factors :

  -21x - 7  =   -7 • (3x + 1)

Equation at the end of step  3  :

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Step  4  :

Equations which are never true :

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Question: The meaning of four consecutive even numbers is 15.
nasty-shy [4]
First, a bit of housekeeping:

<span>The meaning of four consecutive even numbers is 15.  Wouldn't that be "mean," not meaning?  Very different concepts!

The greatest of these numbers is _______ a^1

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The least of these numbers is ______a^2.
No powers in this problem statement.  Perhaps you meant a_2 or a(2)


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We could also type, "a(1)=12, a(2)=14, a(3) = 16, and a(4) = 18.


</span>
8 0
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