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Anarel [89]
3 years ago
12

You plan to take a 1150​-mile trip in your​ car, which averages 20 miles per gallon. How many gallons of gasoline should you exp

ect to​ use
Mathematics
1 answer:
madreJ [45]3 years ago
7 0

Answer:

57.5 or 58

Step-by-step explanation:

1150 = 20x


Divide both sides by 20 to get 57.5


To be proper, you should say that 58 gallons will be used.


It all depends on the teacher, but I know that mine used to tell me to round these types of things up. If you would like to be more exact, just put 57.5 gallons.

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Solve: <br>x + y = 7<br>3x - 2y = 11<br><br>By using Substituting method.​
Salsk061 [2.6K]

\large\underline{\sf{Solution-}}

\sf  \longmapsto x + y = 7 \: \: - - - (i)

\sf  \longmapsto 3x - 2y = 11 \: \: - - - (ii)

<u>By first equation,</u>

\sf  \longmapsto x + y = 7

\sf  \longmapsto x = 7 - y

<u>Now, we can find the original value of y.</u>

\sf \longmapsto 3x - 2y = 11

\sf  \longmapsto 3(7 - y) - 2y = 11

\sf  \longmapsto 21 - 3y - 2y = 11

\sf  \longmapsto 21 - 5y = 11

\sf  \longmapsto - 5y = 11 - 21

\sf  \longmapsto - 5y =  - 10

\sf  \longmapsto y = \dfrac{ - 10}{ - 5}

\sf  \longmapsto y = 2

<u>Now, we can find the original value of x.</u>

\sf  \longmapsto x + y = 7

\sf  \longmapsto x + 2 = 7

\sf  \longmapsto x = 7 - 2

\sf  \longmapsto x = 5

Therefore, the values of x and y are 5 and 2 respectively.

8 0
3 years ago
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There are ten shirts in your closet, four blue, three green, and three red. You randomly select a different shirt each day. You
Law Incorporation [45]
It's a probability problem to find the odds of picking a green or red shirt out of the 10 shirts on Thursday, Friday and Saturday since you have randomly already know you have picked a blue shirt on the other days. Not sure if you have this as a multiple question problem as you didn't list any possible answers (A. 7/20, B. 5/47, C. 2/5, D. 4/125) to the question. A, B, C, D being like 7 chances out of 20, 5 chances out 47, 2 chances out of chances 5 or 4 chances out of 125 (example answers only).

Probability = Number favorable outcomes / total number of outcomes





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4 years ago
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Identify the molecule that is carbohydrate
MaRussiya [10]

Step-by-step explanation:

I think its D: table sugar

8 0
3 years ago
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Solve the equation by factoring X^2+3x+2=0.
vredina [299]

Answer:

(x+2)(x+1)=0

so x = -2,-1

Step-by-step explanation:

6 0
3 years ago
Help please?????? I neeeeedc helppp
Sav [38]
Area of rectange = 5 x 8 = 40
area of green triangle = 1/2(8)(1) = 4
area of yellow triangle = 1/2(4)(8) = 16
area of blue triangle = 40 - (4+16) = 40 - 20 = 20

answer
C. 20

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3 years ago
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