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3 years ago

13

Question 1. When solving the equation 10 = x + 3 what should you do to both sides of the equation? o add 3 O subtract 3 O multip

ly by 3 o divide by 3

2 answers:

tankabanditka [31]3 years ago

5 0

Answer:

x = 7 you gotta switch them over and subtract from the other side, bro.

Step-by-step explanation:

10 = x + 3

3 - 10 = 7

Andreyy893 years ago

4 0

Answer:

Subtract 3.

Step-by-step explanation:

x = 7

10-3 = 7

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3 years ago

You have $4.10 in nickels, dimes, and quarters. If you have twice as many dimes as quarters, and five more nickels than dimes, h

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For this case, the first thing to do is define variables.

We have then:

<em>x: number of nickels </em>
<em>y: number of dimes </em>
<em>z: number of quarters </em>

We write now the system of equations:

$0.05x + 0.1y + 0.25z = 4.10\\y = 2z\\x = y + 5$

Then rewriting the equations we have:

$0.05 (2z + 5) + 0.1 (2z) + 0.25z = 4.1\\0.05 (2z + 5) + 0.1 (2z) + 0.25z = 4.1\\0.1z + 0.25 + 0.2z + 0.25z = 4.1\\0.55z = 4.1-0.25$

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4 years ago

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3 years ago

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First, you would have to switch the domain and range. In other words, swap x and y:

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Then, when you have this, simply solve for y:

x = 3/-y-2
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So the inverse would be
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4 years ago