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Eddi Din [679]
2 years ago
11

3) The perimeter of a triangle is 28x-7. 2 of the sides are 5X-3 and 12x+8. What is the third

Mathematics
1 answer:
Anna [14]2 years ago
6 0

Answer:

11x-2

Step-by-step explanation:

u subtract the two sides from the perimeter

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X-29.79=20.51 or 29.79+20.51=x

x=50.30
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Aisha just received a paycheck from her new job she spends some of it buying music online and saves the rest in a bank account h
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Set y equal to 25 because this is the amount of money Aisha wants to save. This gives you 25 = 50-1.99x. Now we can solve for x, which is the variable. First, subtract 50 from both sides so that you can get the variable, x, by itself. After subtracting 50 from both sides, you are left with -25 = -1.99x . If it is easier for you, you can put the numbers on opposite sides so it reads -1.99x = -25 . Now divide both sides by -1.99 so that x is by itself. So -1.99x ÷-1.99 = 1x which is equal to just x and -25÷-1.99 = about 12.56, which is a decimal. (Remember that when you divide a negative number by a negative number, it becomes a positive number) Finally we have x = 12.56 (or 1x = 12.56) with 12.56 being equal to the number of songs Aisha can buy if she also wants to save money in her bank account. However, nobody can buy only .56 or part of a song. Round down to the nearest whole number, which is 12. This is how many songs she can buy and it makes sense because it is 12 entire songs, not 12 and just the chorus of a song. If you want to check, you can plug in 12 for x and she shouod have a little more than $25 in her bank account. So Aisha can buy 12 songs is she wants to save $25. I hope this helped :)
3 0
3 years ago
You have $2000 to deposit for 7 years and two account options. The first earns you simple interest at a rate of 4% and the secon
pogonyaev

Answer:

First account (simple interest)

Step-by-step explanation:

The amount of interest earned by the first account is ...

I = Prt = $2000·0.04·7 = $2000·0.28 = $560

The amount in the second account at the end of 7 year is ...

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so you have earned $297.37 in interest on the second account.

$560 is more than $297, so the First Account (simple interest) earns more money.

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3 years ago
The three shapes below represent the bases of three different prisms. Each grid is 1 unit x 1 unit, and each prism has a height
8_murik_8 [283]
Then it’s 20 units I think
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2 years ago
Which system of equations is best represented by this graph?
lisabon 2012 [21]

Answer:

B what the other dude said

Step-by-step explanation:

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