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bulgar [2K]
3 years ago
8

At a rock concert, the ratio of girls to boys is 3:7. If there are 360 more boys than girls, how many girls are at the concert?

Mathematics
1 answer:
bixtya [17]3 years ago
4 0
You could understand the ration as parts: the total number of parts was 3+7=10.

So girls were 3/10 parts and boys 7/10 parts. The difference was 7-3=4 parts. this difference is equal to 360, so each part is 90 (4*90 =360).

so girls are "3 parts" and each part is 90, then the number of girls is 3*90=270.
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. To convert the ratio of 3:5 to 5:6, which number should be added on both?​
Pachacha [2.7K]

Answer:

7

Step-by-step explanation:

3:5 + 7 = 10:12

10:12 when shortened is 5:6

5 0
3 years ago
3/8<br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B3%7D%7B8%7D%20%28x%20-%201%29%28x%20-%209%29" id="TexFormula1" title=" \fr
Verdich [7]
The first step for solving this expression is to distribute \frac{3}{8} through the first set of parenthesis.
( \frac{3}{8}x -  \frac{3}{8}) × (x - 9)
Now use the FOIL method to multiply each term in the first parenthesis by each term in the second parenthesis. This will look like the following:
\frac{3}{8}x × x - \frac{3}{8}x × 9 - \frac{3}{8}x - \frac{3}{8} × (-9)
Remember that multiplying two negatives together equals a positive,, so the expression changes to:
\frac{3}{8}x × x - \frac{3}{8}x × 9 - \frac{3}{8}x + \frac{3}{8} × 9
Calculate the product of all of the sets of multiplication to make the expression become:
\frac{3}{8}x² - \frac{27}{8}x - \frac{3}{8}x + \frac{27}{8}
Lastly,, calculate the difference of - \frac{27}{8}x - \frac{3}{8}x to find your final answer.
\frac{3}{8}x² - \frac{15}{4}x + \frac{27}{8}
Let me know if you have any further questions.
:)
8 0
3 years ago
The area of a square patio is 225 square feet. How long is each side of the patio? (QUICK I HAVE AN EXAM LOL)
frosja888 [35]

Answer:

15 feet

Step-by-step explanation:

Since this is a square the sides are of the same length.

Now the side multiplied by itself gives 225. Hence the length of the side is a number which multiplied by itself gives 225. It is easy to see that 15 × 15 = 225. Therefore the side is 15 feet long.

6 0
3 years ago
Write 350 as a product of primes
LiRa [457]

Answer:

350 = 2 \times 5 \times 5 \times 7

Step-by-step explanation:

350 = 2 \times 5 \times 5 \times 7

4 0
2 years ago
Read 2 more answers
Pls help me I’m failing lolz:/
Marta_Voda [28]

Answer:

6= 4k/9

Step-by-step explanation:

RLLY HOPE THIS HELPS QUICK ANSWER TRYING Q.8

8 0
3 years ago
Read 2 more answers
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