Answer:
There are 12 boys at the movie.
Step-by-step explanation:
<u>Key skills needed in order to solve: Proportions, Ratios, and Multiplication</u>
1) The ratio is 4 boys : 5 girls --> It can be written as a fraction --> 4/5
2) If there are 15 girls, we need to find the number of boys. let's say x is the number of boys when there are 15 girls. The ratio would then be x/15
3) Make a proportion -->
= ![\frac{x}{15}](https://tex.z-dn.net/?f=%5Cfrac%7Bx%7D%7B15%7D)
You have to cross multiply here. You do the first fraction's numerator times the second fraction's denominator, and the first fraction's denominator times the second fraction's numerator.
4) This means you have to do: 4(15) = 5(x)
5) Multiply it out --> 60=5x
6) Divide by 5 and you will get x=12
Therefore there are 12 boys at the movie.
<em>Hope you understand and have a nice day!! :D</em>
Answer:
c is -1/20
Step-by-step explanation:
sorry, i don't know how to get the answer
i literally typed it up
Answer:
The answer would be 3.
Step-by-step explanation:
-2x= -6-x+3 First you would add the x to each side. Then you are left with..
-x= -6+3 Now add 3 to -6
-x= -3 Now to get rid of the negative sign on the x, divide each side by -1.
x=3 That would be your final answer.
To Check Your Work, plug in 3 to the two x in the original equation, and see if you will get a true statement.
-2x=-6-x+3
-2(3)= -6-3+3 The threes would cancel out because -3+3=0
-6 = -6 This is a true statement so that means x=3 is the correct answer
Answer:
No
Step-by-step explanation:
Find the rate and compare.
4 hrs = £24
8 hrs = £50
24 ÷ 4 = £6 per hour
50 ÷ 8 = £6.25 per hour
As you can see, the rate is not the same, so Vince's pay is not proportional at all.