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Lady bird [3.3K]
3 years ago
8

The table below shows the amount Allen earns for tutoring based on the number of hours he tutors.

Mathematics
1 answer:
melisa1 [442]3 years ago
6 0

Answer:

15

Step-by-step explanation:

x=hours

y=earnings

y=rx

30=2r

30/2=r

r=15

Hope this helps!!!

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Factor completely.<br><br> 3x^2 −147=
erica [24]

Answer:

3(x - 7)(x+7)

Step-by-step explanation:

To factor this, you must first take out the GCF (Greatest Common Factor), that 3x^2 and -147 both have. The terms only have 3 in common, which can be divided with

3x^2 - 147\\3(x^2 - 49)

However, we're still not done since 49 is a perfect square and (x^2 - 49) can be split into 2, like so:

3(x - 7)(x+7)

If you're unsure about the final answer, you can multiply it all together to see if you got the original expression.

5 0
2 years ago
Is it true that (x^2–3x+2)/(x –1) = x – 2, for all values of x? Justify your answer.
Nimfa-mama [501]

Answer:

x²-3x+2=0

x²-2x-x+2=0

(x²-2x)(-x+2)=0

x(x-2)-1(x-2)=0

(x-2)(x-1)=0

x-2=0 or x-1=0

x=2 or x=1

6 0
3 years ago
Which ordered pairs are solutions to the inequality x+3y≥−8?
crimeas [40]
(-6,0)
(-1,-2)
(-5,-1)
4 0
3 years ago
Read 2 more answers
A lumberyard will deliver wood for $7 per board foot plus a delivery charge of $10. Find a function C(x) for the cost (in dollar
Paladinen [302]

Answer:

C(x) = 7x + 10

Step-by-step explanation:

If the delivery charge is $10 for any number of board feet ordered.

If the delivery charge is $10 for each board feet ordered, the function would

be C(x) = (7 + 10)x = 17x

4 0
3 years ago
What's 15% off $17.98
erastova [34]
Your answer is $15.28.

I hope that this helps and have a nice day.
4 0
3 years ago
Read 2 more answers
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