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2 years ago

The ratio of boys to girls is 7:8 if there were 42 boys how many girls are there

2 answers:

6 0

Ratio of boys to girls are 7:8
and there are 42 boys.
42/7 will be the multiplier because you know the amount and the ratio.
so multiplier is 42/7 = 6
now we need to multiply 8x6=48

gladu [14]2 years ago

5 0

$x^{123} x^{123} x^{123} x^{123} x^{123} x^{123} x^{123} x^{123} x^{123} x^{123} x^{123}$

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Factor x3 + 3x2 + 2x completely. x(x2 + 3x + 2) x(x + 1)(x + 2) x(x - 1)(x - 2) DONE

Natasha2012 [34]

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2 years ago

Read 2 more answers

Pllsssss help Explanation plsss

aleksklad [387]

Answer:

x = 17

Step-by-step explanation:

8x - 9 + 53 = 180 (collect like terms)

8x + 44 = 180 (subtract 44 on both sides)

8x = 136 (divide by 8 on each side)

x = 17

HOpe this helps!!

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2 years ago

What is (5+3)+7=5+(3+7) is it Associative, Identity, Commutative or Substitution?

timama [110]

Answer:

Associative

Step-by-step explanation:

The associative property of addition states that you can add numbers however they are grouped inside parentheses.

It doesn't matter where you put the parentheses. You will always get the same answer.

For example,

$\begin{array}{rcl}(5 + 3) + 7 & = & 5 + (3 + 7)\\8 + 7& = & 5 + 10\\15 & = & 15\\\end{array}$

4 0

2 years ago

Find the y-intercept for the parabola defined by the equation y=x^2-x-12

o-na [289]

Answer:

The y-intercept is (0,-12).

Step-by-step explanation:

Given equation is $y=x^2-x-12$ .

Now question says to find the y-intercept of the given parabola $y=x^2-x-12$ .

We know that y-intercept means the y-value when x-value equals 0

so let's plug x=0 into given equation $y=x^2-x-12$ then solve that for y.

$y=x^2-x-12$

$y=0^2-0-12$

$y=0-0-12$

$y=-12$

Hence the y-intercept is (0,-12).

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2 years ago

Which of the following is a polynomial?

Makovka662 [10]

Answer:

Step-by-step explanation:

Terms are separated by addition and subtraction symbols.

Polynomials consist of terms that are constant and/or variable. The variable terms must have 0 or positive exponents. Polynomials will not consist of division of variable expressions.

Examples of polynomials:

$5$