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Yuki888 [10]
3 years ago
15

What is the value of x when (6x+1)+(2x+10)=79

Mathematics
1 answer:
Setler [38]3 years ago
5 0

Answer:

x=8.5

Step-by-step explanation:

(6x+1)+(2x+10)=79

6x+2x    1+10

8x +11=79

-11        -11

8x=68

÷8   ÷8

x=8.5

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Answer:

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Two cars leave at the same time from points A and B, the distance between them is 280 km. If the cars meet each other, they’ll m
kykrilka [37]
Set up the following equations:

2x + 2y = 280

14x - 14y = 280

x represents car A's speed, and y represents car B's speed.

We'll use elimination to solve this system of equations. Multiply the first equation by 7:

(2x + 2y = 280) * 7 = 14x + 14y = 1960

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7 0
3 years ago
Sherman goes golfing every 6th day. and Brad goes golfing every 7th day.
mylen [45]

Find the least common multiple of each number:

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3 0
3 years ago
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Solve 5x^2 +16x -84=0 using the quadratic equation
Andrew [12]
In order to find the answer to this question, we need to use the quadratic formula. 

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One solution is 2.8. Now, let's do the same thing, but subtract this time. Keep in mind that the number under the radical stays the same, so you don't have to recalculate that.

-16 - 44
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The solutions to the equation are 2.8 and -6.

Hope this helps!
8 0
3 years ago
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tiny-mole [99]
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7 0
3 years ago
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