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Yuki888 [10]
3 years ago
7

gas mileage is the number of miles you can drive on a gallon of gasoline. A test of a new car results in 400 miles on 20 gallons

of gas. How far could you drive on 55 gallons of gas? What is the car’s gas mileage
Mathematics
2 answers:
V125BC [204]3 years ago
7 0

Answer:

1100

Step-by-step explanation:

400/x=20/55

Cross multiply

20x=22000

x=1100

Kipish [7]3 years ago
4 0
Hide a sus. Suena a unending
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0.000014565 in scientific notation
Eddi Din [679]

1.4565 * 10 ^ - 5

I would really really appreciate it if you marked me as brainiest ☆〜(ゝ。∂)

8 0
3 years ago
PLEASE!!!
ANEK [815]

9514 1404 393

Answer:

  1. 30m +50 = 20m +100
  2. m = 5
  3. yes. symmetric property of equality.

Step-by-step explanation:

1. The expression for c in the first equation is (30m+50). Substituting that for c in the equation ...

  c = 20m +100

gives you ...

  30m +50 = 20m +100

__

2. Adding -50-20m to both sides gives ...

  10m = 50

  m = 5 . . . . . . . divide by 10

__

3. Doing the substitution in reverse, you would substitute (20m+100) for c in the equation ...

  c = 30m +50

to get ...

  20m +100 = 30m +50

This is the equation of part 1 with the expressions swapped to the other side of the equal sign. The symmetric property of equality tells you that changing sides of the equal sign does not change the value of the variable(s).

You get the same solution.

3 0
3 years ago
George studied 3/4 of an hour on Monday and 7/8 of an hour on Tuesday. How long did he study altogether on both days?
7nadin3 [17]

so you would add 3/4 and  7/8.  so thats 1 1/2

3 0
2 years ago
Read 2 more answers
A portion of the graph of f(x) = −x2 + 6x − 5 is shown. Which of the following describes all solutions for f(x)? a partial parab
marishachu [46]

Answer:

c

Step-by-step explanation:

7 0
3 years ago
Last two!!(ty for all the help) :
malfutka [58]
With the b2+b- 12 your gonna want to do this
b2+b-12
b2+4b-3b-12
which is the sum product
after doing that you wanna common the factors from the two pairs. Which is b2+4b-3b-12 then you do you parentheses around b(b+4)-3(b+4) just like that after you do that then you rewrite it in factored form b(b+4)-3(b+4) you then want to rewrite it to this (b-3)(b+4) after that your solution will be (b-3)(b+4) for the first one.
7 0
2 years ago
Read 2 more answers
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