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Karolina [17]
3 years ago
7

On Monday, Sarah has to meet her friend at the park after school The distance from her house to school is 2x+5 The distance from

the school to the park is z If the total distance she was that day is 10x +9 how far is it from the park back to her
house?
Mathematics
1 answer:
DanielleElmas [232]3 years ago
6 0

Answer:

8x + 4 - z

Step-by-step explanation:

Given the following :

The distance from her house to school is 2x+5 The distance from the school to the park is z If the total distance she was that day is 10x +9 how far is it from the park back to her

Distance from house to school = 2x + 5

Distance from school to park = z

Total distance covered = 10x + 9

Distance from park to house =?

Total distance = (distance from house to school + distance from school to park + distance from park to house)

Let p = distance from park to house

10x + 9 = (2x + 5 + z + p)

10x + 9 - 2x - 5 - z = p

8x + 4 - z

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agasfer [191]

The additive inverse: The usage of addition with a negative number.

The original equation is 21 - 11 = 10

To use the additive inverse, change it so that there is an addition sign.

21 + (-11) = 10

B) -11 is your answer

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7 0
2 years ago
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algol13

Answer:

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Step-by-step explanation:

6 0
3 years ago
Y>= -5x + 8 what is m?​
Sonbull [250]

Answer:

The slope = -5

Step-by-step explanation:

y ≥ -5x + 8

Look at the problem as y = -5x + 8 and compare to the slope intercept form. The slope = -5

6 0
2 years ago
25 POINTS // URGENT
exis [7]

Answer: Thus both of them got it correct

Step-by-step explanation:

Step 1

Andy finds the sale price of a baseball glove that normally costs $49 by evaluating the question 49 - 0.3(49).

the Price will be 49-14.7=34:3

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4 0
3 years ago
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AVprozaik [17]

Answer:

28 miles in 1.4 hours in the city

Step-by-step explanation:

<u>On the highway:</u>

Time =t hours

Rate = 45 mph

Distance =45\cdot t miles

<u>In the city:</u>

Time =3-t hours

Rate = 20 mph

Distance =20\cdot (3-t) miles

The trip was 100 miles long, then

45t+20(3-t)=100\\ \\45t+60-20t=100\\ \\45t-20t=100-60\\ \\25t=40\\ \\t=1.6\ hours\\ \\3-t=3-1.6=1.4\ hours

Distance on the highway =45\cdot 1.6=72 miles

Distance in the city =20\cdot 1.4=28 miles

6 0
3 years ago
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