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Goryan [66]
3 years ago
7

9. Which one of the following dealt with

Mathematics
1 answer:
Elden [556K]3 years ago
3 0

Answer:

lskwmzkmsmqmqmqkzkzzlosmz

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What is F(8) if f(x) = 15x
Lilit [14]

Answer:

F(8)=120

Step-by-step explanation:

f(x)=15x

f(8)=15(8)

f(8)=120

6 0
3 years ago
Chad gets an annual salary of 25,000. He and his family spend 3500 per year on food. What percent of his salary is spent on food
Advocard [28]

Answer:

\frac{x}{100} x 25000 = 3500

x x 250 = 3500

x = 3500/250

x = 350/25

x = 14%

7 0
3 years ago
Rachel has already written 10 pages, and she expects to write 1 page for every additional hour spent writing. How many hours wil
vlada-n [284]

Answer:

27?

Step-by-step explanation:

because 1 page per 1 hour leads up to 27 hours for 27 pages. Or if your not counting the 10 pages she has already written, she spent 17 hours.

4 0
3 years ago
Veronica has been saving dimes and quarters she has 110 coins in all and the total value is 18.50 how many dimes and quarters do
Lady_Fox [76]

This problem can be solved by the chicken rabbits method or you can just do simple algebra.

I.) Chicken and rabbits method

First assume all 110 coins are dimes and none are quarters.

We will have a total value of 11 dollars

Now for each dime we switch out for a quarter, we adds 15 cents to the total value.

18.50-11=7.50 dollars

There are 750/15=50 group of 15 cents in the 7 dollars and 50 cents.

This also meant that we need to switch out 50 dimes for 50 quarters.

So we have 50 quarters.

That first method is very good and very quick once you get the hang of it, now I'm going to show you the algebraic way to solve this.

Let's say there are x dimes and y quarters.

Set up equation

x+y=110

10x+25y=1850

Now solve multiply first equation by 10

10x+10y=1100

subtract

15y=750

y=50

Now we set the numbers of quarters to y so the answer is 50 quarters.

I personally recommend using algebra whenever you can because the practice is very important and you will eventually get really fast at setting up and solving equations. The first method is faster in this case but the second is more generalize, hope it helps.

6 0
3 years ago
Alex wants to fence in an area for a dog park. He has plotted three sides of the fenced area at the points E (1, 5), F (3, 5), a
kobusy [5.1K]

Answer:

(1,1)

Step-by-step explanation:

I just finished the exam and got it correct, as you can see in the picture.

3 0
2 years ago
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