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aleksandr82 [10.1K]
3 years ago
15

PLS HELP I WILL GIVE BRAINLIIEST Which equation results from adding the equations in this system?

Mathematics
2 answers:
pentagon [3]3 years ago
8 0

Answer:

A

Step-by-step explanation:

i got it right

Ber [7]3 years ago
6 0

Answer:

I think it might be C but the 24 should be negative

Step-by-step explanation:

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The cost to rent a car is $39.50 plus $0.25 per mile. If you only have $80, what is the greatest number of miles that you can dr
Aloiza [94]

Answer:

the most she can drive is 162 miles

Step-by-step explanation:

4 0
3 years ago
7) Solve the following system of equations below algebraically using substitution.
Pani-rosa [81]

Answer:

x = 3.25

y =4.75

Step-by-step explanation:

In order to Solve the following system of equations below algebraically using substitution method we say that;

let;

8x - 4y = 7 ..................... equation 1

x + y = 8.......................... equation 2

from equation2

x + y = 8.......................... equation 2

x = 8 - y.............................. equation 3

substitute for x in equation 1

8x - 4y = 7 ..................... equation 1

8(8-y) - 4y = 7

64-8y-4y=7

64-12y=7

collect the like terms

64-7 = 12y

57= 12y

divide both sides by the coefficient of y which is 12

57/12 = 12y/12

4.75 = y

y =4.75

put y = 4.75 in equation 3

x = 8 - y.............................. equation 3

x = 8 -4.75

x = 3.25

to check if your answer is correct, put the value of x and y in either equation 1 or 2

from equation 2

x + y = 8.......................... equation 2

3.25 + 4.75 =8

8=8.................... proved

8 0
3 years ago
Does 6 3/8 - 4 3/4 = 4 3/4
UNO [17]

Answer:

no it doesnt

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
If the whole numbers are added the sum would be <br>113.5+22.41​
Arte-miy333 [17]
113.5+22.41 = 135.91 if that’s what’s your asking :)
4 0
3 years ago
A runner is 7/8 miles from the finish line.
stepan [7]
So basically you have to see how the person is built but in average it will took like 12minutes
6 0
3 years ago
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