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n200080 [17]
3 years ago
6

Anyone know how to do this?

Mathematics
1 answer:
Lera25 [3.4K]3 years ago
8 0

Answer:

Part A) 25

Part B) 225

Step-by-step explanation:

Part A

The slope of the graph gives us the mile per gallon of the car.

Recall that the slope of the graph is rise over run.

m =  \frac{200}{8}  = 25

Therefore car gets 25 miles per gallon

Part B) Since we know the slope of the direct variation line, we substitute into y=kx to get:

y = 25x

To find the number of miles the car travels using 9 gallons, we substitute x=9 to get:

y = 25 \times 9

This gives us 225 miles

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Step-by-step explanation:

"identity" means an operation that does nothing.

For adding numbers, adding 0 changes nothing, so 0 is the identity for addition.

For multiplication, multiplying by 1 changes nothing, so 1 is the identity for multiplication.

3 0
3 years ago
Question 11 . 2 p Brent is considering buying a new circular track for his model train. He estimates that the model's circumfere
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Brent estimates that the model's circumference is about 3 times the measure of the circle's diameter, with this, he can estimate the area.

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4 0
2 years ago
Joel earns $5.50 an hour and time-and-a-half for overtime. how much does he earn for a 44.5-hour week?
vova2212 [387]
The expression which can be used to solve this problem is 5.50h + 1.5h. 

Since the given data is 44.5 hour week, all we need to do is substitute the given data to the expression. Since it takes 56 hours a week for a complete office/working hour without overtime, Joel's 44.5 hour week means he did not have overtime hours. Therefore the solution is,

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3 years ago
Two angles in a triangle have measures of 18 and 77º.<br> What is the measure of the third angle
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Answer:

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3 years ago
Read 2 more answers
HELP! I will mark branliest, please answer this question!!!<br><br> The value of x is ____?
aniked [119]

45x+angle trs = 180   straight line


angle trs = 180-45x


angle trs + angle t + angle tsr = 180  (sum of angles in a triangle =180)


(180-45x) + 25x + 57+x = 180


combine like terms


180 +57 -45x+25x+x=180


237-19x=180


subtract 237 from each side


-19x =-57


divide by -19


x=3



4 0
3 years ago
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