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hichkok12 [17]
3 years ago
15

Mary wanted to know the amount of time 7th grade

Mathematics
1 answer:
Luba_88 [7]3 years ago
8 0
Do you have a picture or something to know exactly what you mean? Because this Is confusing
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troy's truck has a 30 gallon gas tank and gets an average of 21 miles per gallon.write an equation to represent the amount of ga
GuDViN [60]

Let

x---------> represent the number of miles Troy's has driven

y--------> represent the amount of gas in Troy's truck

we know that

the equation that represents the amount of gas, y, in troy' s truck after driving a certain number of miles, x is

y-y1=m*(x-x1)

where

m is the slope---------> \frac{gallon}{miles}

in this problem the slope is equal to -\frac{1}{21} \frac{gallons}{miles}

it's negative because the tank is going to be consumed

assuming he starts with a full tank

for\ x=0\ y=30\  gal

substitute in the formula above

y-y1=m*(x-x1)\\\\ y-30=-\frac{1}{21}*(x-0)\\\\ y=-\frac{x}{21}+30

therefore

the answer is

the equation y=-\frac{x}{21}+30

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3 years ago
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Mariana [72]

Answer:

D

Step-by-step explanation:

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5 0
3 years ago
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What is the prime number?​
JulsSmile [24]

Answer:

In math, prime numbers are whole numbers greater than 1, which have only two factors – 1 and the number itself. Prime numbers are divisible only by the number 1 or itself. For example, 2, 3, 5, 7, and 11 are the first few prime numbers.

Step-by-step explanation:

hope this helps :)

6 0
3 years ago
How many bases does a rectangular prism have?<br> one<br> two<br> three<br> four
kolezko [41]

Answer:

B. two

explanation:

i took the test

hope this helps. have a great day!!

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What two facts can you double to find 8x4 explain
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1 Divide 32 by 8
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( im not sure how to explain sorry )
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3 years ago
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