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Furkat [3]
3 years ago
14

Pls help I’m failing I need this right Show your work

Mathematics
1 answer:
marta [7]3 years ago
4 0

13. You first  would subtract 200 from 500 so you have 300. Then take 300 and divide it by 20 so you answer is it will take 15 weeks to get her to have a balance of $200. 20x + 200 = 500

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Can someone help me plz​
alexandr1967 [171]

Answer:

B. & E.

Step-by-step explanation:

First, to find your slope, put your line into slope-intercept form.

y=mx+b\\

3x-4y=7\\-4y=-3x+7\\y=\frac{3}{4} x-\frac{7}{4}

Your slope is \frac{3}{4}.

Now, you can find the y-intercept of your parallel line by plugging your given point and your slope into point-slope form.

y-y1=m(x-x1)\\y-(-2)=\frac{3}{4} (x-(-4))\\y+2=\frac{3}{4} (x+4)\\y+2=\frac{3}{4} x+3\\y=\frac{3}{4} x+1

Your y-intercept is 1.

If you notice, answer choice E is equivalent to one of our steps in converting it to point-slope form. Therefore, E is one of your answers.

The equation of your parallel line is:

y=\frac{3}{4} x+1

B is also a correct answer.

If you put B into slope-intercept form, you get the following:

3x-4y=-4\\-4y=-3x-4\\y=\frac{3}{4} x+1

This, of course, is equivalent to the parallel line which we already found, so we know it is parallel.

7 0
4 years ago
Read 2 more answers
Help me find the answer please
elena-s [515]

Answer:

60

Step-by-step explanation:

m∠1=(55+65)/2=60

5 0
3 years ago
<img src="https://tex.z-dn.net/?f=%5Csqrt288x4y9" id="TexFormula1" title="\sqrt288x4y9" alt="\sqrt288x4y9" align="absmiddle" cla
sasho [114]

Here's what I got, hope it helps.

5 0
3 years ago
Explain the difference in meaning between I-3I and -3.
dexar [7]
|-3| is an absolute value. This means it will always be positive. -3 is an integer and is negative.
7 0
4 years ago
Read 2 more answers
1) Sandra saves 12% of her salary for retirement. This year her salary was $3000 more than in the previous year, and she saved $
svp [43]
Given:
savings 12% of her salary.
savings $4,200
This year's salary: x + 3,000
Last year's salary: x

4,200 represents 12% of her salary.
4,200 / 12% =  35,000 is her salary this year.

x + 3,000 = 35,000
x = 35,000 - 3,000
x = 32,000  her salary last year.
3 0
3 years ago
Read 2 more answers
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