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agasfer [191]
3 years ago
7

5. Solve the problem by writing an inequality. A club decides to sell T-shirts for $12 as a fund-raiser. It costs $20 plus $8 pe

r T-shirt to make the T-shirts. Write and solve an                  equation to find how many T-shirts the club needs to make and sell in order to profit at least $100. Show your work?
Mathematics
1 answer:
kykrilka [37]3 years ago
8 0
T=the amount of shirts
12t-20-8t=100
12t-8t=120
4t=120
t=30
So they must sell at least 30 shirts to make $100.
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Set up the equation!

4a-6=-2+14

Let's try subtracting 14 from both sides! We must do the opposite operation to cancel it out.

14-14=0\\-6-14= -20

Now we have

4a-20=-2

We have to start on the left side now, because we can't have an equation with one blank side. The number you start with will end up getting canceled out, as 0. How about we add 20 to both sides?

-20+20=0\\-2+20=18

Now we have

4a=18

Next, we have to apply the opposite opperation to both sides. The only opperation left is multiplication (4a). Therefore, we need to divide by 4, because we have to isolate a.

4a/4=a\\18/4=4.5

Now we have

a=4.5

Your answer is a=4.5!

<u><em>Remember:</em></u><em> </em><em>Combine like terms first, it's much easier!</em>

Please let me know if this helped or if you have questions, and if you can, I'd be so grateful to receive a rating! Two-sided equations took me a long time, so I want to help you understand!

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Answer:

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Step-by-step explanation:

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1. Rain on days 1 and 2

2. Rain on days 1 and 3; none on day 2

3. Rain on days 1 and 4; none on days 2 and 3

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Answer:

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hope it helps

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