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Ghella [55]
4 years ago
12

The high school, middle school, and elementary school are all on the same road. The distance from the high school to the middle

school can be represented by the expression 8.7x2+11.9x+3.5 . The distance from the middle school to the elementary school can be represented by the expression 3.23x2+2.7x+0.75 . What is the total distance from the high school to the elementary school?
Mathematics
2 answers:
lara31 [8.8K]4 years ago
8 0
I know how to work it out. The only problem is that your expressions don't make sense because you put the multiplication sign next to the addition sign and that can't work.
Margarita [4]4 years ago
6 0

Answer:

what do you mean in this question plus what are you asking I don't get it at all.

Step-by-step explanation:

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3 years ago
What is the value of x in the solution to this system of equations?
liberstina [14]

Answer:

x = 11

Step-by-step explanation:

Given the expression;

5x+2y=67 ...1

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Substitute 2 into 1

5(3y-7)+2y = 67

15y - 35 + 2y = 67

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17y = 102

y = 102/17

y =6

Recall that x = 3y - 7

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x = 18 - 7

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3 years ago
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Answer:

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Step-by-step explanation:

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Read 2 more answers
A​ person's rectangular dog pen for his dog must have an area of 200 square feet.​ Also, the length must be 12 feet longer than
kherson [118]

Answer:

width = 9.36 ft

length = 21.36 ft

Step-by-step explanation:

Let the width be x ft long. Then it follows that the length will be (x+12) ft long.

To calculate the area would then be

x(x+12) = 200

xx^{2} +12x=200x^{2} +12x-200=0

x = 9.36 ft or x = -21.36 ft

We take the positive answer. So the dimensions are

width = 9.36 ft

length =  9.36 + 12 = 21.36 ft

6 0
3 years ago
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