There are 20 boys in the class. The ratio is 4:3 so that means 4 out of 7 are boys and 3 out of 7 are girls. Divide 35 by 7 and you get 5. 5 times 4 is 20. 5 times 3 is 15. add them together and you have 35 students in total. So 20 students are boys and 15 students are girls.
Answer:
C.
Step-by-step explanation:
Her average now is 88.
She needs to bring it up to a 90.
Let's start with if she gets a 90.
88 + 90 = 178
178/2 = 89
A 90 would only get her an average of 89, so you need to go higher.
88 + 91 = 179
179/2 = 89.5
88 + 92 = 180
180/2 = 90
She must get at least a 92 to get an average of 90.
Answer:
A. 2x+5
Step-by-step explanation:
You can solve these by substituting f(x) as the input (or x value) in g(f(x)). This would be putting the 2x in as the "x" in x+5. So 2x+5.
Answer: help
Step-by-step explanation:
did you figure the problem out
