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Bezzdna [24]
3 years ago
9

Given that 8x – 5y = 16Find x when y = 8​

Mathematics
1 answer:
kipiarov [429]3 years ago
3 0

8x-5[8]=16

8x=16+40

8x=56

x=7

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saul85 [17]
D.(6,3)

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3 years ago
Writing to Explain In the equation x-3.5 = 7.2, why cant you just add 3.5 tonone side of the equation to get x alone? I'll give
valentinak56 [21]

Answer as follow: happy to help always.....

Step-by-step explanation:

x-3.5 = 7.2

x = 7.2+ 3.5

as you know that 3.5 is subtracting over other side while moving it on 7.2 side it will add..

7.2+3.5

10.7

so,

x= 10.7

you can check ✅✅✅✅

Thank you!!!!!!!!!

3 0
3 years ago
What angle of inclination (to the nearest whole degree) does a stairway make with the floor if the steps have a tread of 11 inch
faltersainse [42]

tan x = opposite / adjacent 
tan x = 6 / 11 
tan x = 6 / 11 
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3 0
4 years ago
Read 2 more answers
The perimeter of a rectangular section of a roof is 96 yards. The length is 18 yards. What equation could you use to find the wi
Kruka [31]

Answer:

36+2w=96

2w=96-36=60

w=60/2=30

Step-by-step explanation:

perimeter is 96, that means length + length + width + width = 96.

say l is length and w is width.

since we know length is 18, 18+18+width+width = 96

36+2w=96

2w=96-36=60

w=60/2=30

4 0
3 years ago
Read 2 more answers
Find two consecutive integers such that the sum of their squares is 145.
DiKsa [7]

Answer: 8 and 9 or -9 and -8

Step-by-step explanation:

Let x be the first of the two integers. Then, since the numbers are consecutive, x+1 is the other integer. We then know that the sum of the squares of x and x+1 is equal to 145. So, now we have the equation

x^2+(x+1)^2=145

which can be expanded and simplified to

2x^2+2x+1=145

which then gives us the quadratic equation

2x^2+2x-144=0

This can then be factored into

2(x^2+x-72)=0

Which can be simplified further into

2(x-8)(x+9)=0

So either x=8 or x=-9. This gives us two solutions: 8 and 9 or -9 and -8.

Hope this helps! CHEERS!

7 0
4 years ago
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