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Dafna11 [192]
3 years ago
6

How do you solve 10x -1 +2y =15

Mathematics
1 answer:
julsineya [31]3 years ago
3 0

Your answer is x = (8-y) / 5

Here's how:

Step 1: Add 1 to both sides. 10x + 2y = 15 + 1

Step 2: Simplify 15 + 1 to 16. 10x + 2y = 16

Step 3: Factor are the common term 2. 2(5x + y) = 16

Step 4: Divide both sides by 2. 5x + y = 16/2

Step 5: Simplify 16/2 to 8. 5x + y = 8

Step 6: Subtract y from both sides. 5x = 8 - y

Step 7: Divide both sides by y. x = (8-y) / 5

This answer is if you want to solve for x! If you want to solve for y, let me know and I'll change my answer! Have a nice night!

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Step-by-step explanation:

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3 years ago
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t= 0.8 hr  or 48 min.

Step-by-step explanation:

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Half and hour late it means that after 1/2 hr.

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x = 6 t                           ------------ 1

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So

x/2 = 8 (t-1/2)                   -----------------2

Now from equation 1 and 2

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Hence the percent error of Shirley's estimate is 21.74%

Learn more on percent error here: brainly.com/question/5493941

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