Ask question

Ask question

All categories

3 years ago

5

You are given the difference of the numbers of boys and girls in a class and the ratio of boys to girls. How many boys and how m

any girls are in the class?
4 more girls; 9 for every 13

1 answer:

Tema [17]3 years ago

7 0

Answer:

Am sure boys are 13and girls also 13

You might be interested in

Mathew and Melanie work at their local supermarket located in Brooklyn, New York. They each earn $8 per hour. Mathew worked thre

Liula [17]

Answer:

6 hours

Step-by-step explanation:

To start this, you must use an equation that models the amount that Mathew and Melanie made based on time. The total amount of money earned by the two of them is 120, and they both work for 8 dollars and hour, and Mathew worked 3 more hours, our equation is 120 = 8x +8(x+3)

We must first solve for x

120 = 8x + 8x +24

-24 -24

96 = 16x

x = 6

x is the amount of hours Melane worked.

6 0

3 years ago

Read 2 more answers

Help me asap please!!

Andrew [12]

Answer:

its A

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Trevor rode his bicycle 25 miles in 2 hours. Assuming Trevor rode at a constant speed, how many miles did Trevor ride in one hou

11Alexandr11 [23.1K]

So for this one all you have to do is find the average. Simply do 25 divided by 2 to get 12.5 miles per hour.

3 0

4 years ago

Caden states that n^2 +3n + 2n is an equivalent expression to 6n. Why is Caden's statement incorrect?

malfutka [58]

$\begin{gathered} \text{The simplification of n}^2+3n+2n\text{ is:} \\ i)n^2+5n \\ By\text{ collecting common term, this can be written in form of:} \\ ii)\text{ n(n+5)} \end{gathered}$

Thus, options A and D hold, from the simplifications above.

Let's consider the validity of the remaining options provided.

$\begin{gathered} \text{For option B)} \\ \text{substitute for n=1 into the expression n}^2+3n+2n,\text{ we have} \\ 1^2+3(1)+2(1)=1+3+2=6 \\ \text{substitute for n=1 into the expression 6n, we have} \\ 6(1)=6 \\ \text{Thus, the expression n}^2+3n+2n\text{ is equivalent to 6n, for n=1} \end{gathered}$ $\begin{gathered} \text{For option C)} \\ \text{The expression n}^2+3n+2n\text{ does not simplify to 7n} \end{gathered}$ $\begin{gathered} \text{For option E)} \\ \text{substitute for n=4 into the expression n}^2+3n+2n,\text{ we have:} \\ 4^2+3(4)+2(4)=16+12+8=36 \\ \text{substitute for n=6 into the expression 6n, we have:} \\ 6(4)=24 \\ \text{Thus, the two(2) expressions are not equivalent to each other, for n=4} \end{gathered}$ $\begin{gathered} \text{For option F)} \\ \text{substitute for n=3 into the expression n}^2+3n+2n,\text{ we have:} \\ 3^2+3(3)+2(3)=9+9+6=24 \\ \text{substitute for n=3 into the expression 6n, we have:} \\ 6(3)=18 \\ \text{Thus, the two(2) expressions are not equivalent to each other, for n=3} \end{gathered}$

Hence, the correct options that apply are options A, D, E and F

7 0

1 year ago

"find the measure of each angle indicated"

Zepler [3.9K]

180-65=115°

that's the answer

4 0

3 years ago