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Kisachek [45]
3 years ago
9

Use a diagram to solve: Sara ran two-fifths of the race. She needs to run 120 m more to finish the race. What is the length of t

he race?
Mathematics
1 answer:
KATRIN_1 [288]3 years ago
7 0
The answer would be 200 meters.
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If 35+(16x-8)+(2x+9)=180 what does x equal
Mnenie [13.5K]

Answer:

x = 8

Step-by-step explanation:

combine like terms:

18x + 36 = 180

18x = 180-36

18x = 144

x = 144/18

x = 8

3 0
3 years ago
Write the equation of<br> the line that passes<br> through (2,-4) &amp;<br> has a slope of -1.
zzz [600]

Answer:

y= -1x-6

Step-by-step explanation:

The equation would be y=mx+b

M= slope, and B=y-intercept

If you look at a graph and use the slope to get to the Y-intercept you'll see that it is -6, and so you would just plug that into the equation along with the slope :)

7 0
2 years ago
jamie borrowed $31,000 to put towards a down payment for a home. Jamie plans to repay the loan in 7 years. The bank offered a 4.
erastova [34]

Answer:

56,691.00 which would be 21 payments at 4.1 % compounded quarterly.

84 months in 7 years

÷ 4

= 21

21

×4.1 =

26,691 +

31,000 =

56,691

7 0
2 years ago
Use the distributive property to simplify 45c+10d
Serggg [28]
I think this is correct:
5(9c + 2d)
7 0
2 years ago
A particular beach is eroding at a rate of 4 centimeters per year. A realtor converts this rate to millimeters per day. Which
Aloiza [94]

Answer:

\frac{4cm}{1year}*\frac{10mm}{1cm}*\frac{1year}{365days}

Step-by-step explanation:

Whenever we are doing unit conversions, we have to remember to make the first ratio and then each successive ratio should be put <em>in such a way</em> that the top and bottom cancels out with each unit and whatever we want, remains.

A simple example would be if we were to just convert from cm to mm. Suppose we want to convert 5 centimeters to millimeters. We can write the ratios is 2 ways:

First:

5cm*\frac{10mm}{1cm}

Second:

5cm*\frac{1cm}{10mm}

The first one is correct since we want mm, mm should be on top and cm should be on bottom form cm and cm to get canceled.

Now, for our problem, we want mm on top and day on bottom. So, cm and year should cancel. Looking at the first choice, the conversion factors are correct & skimming through, we see that

cm and cm cancels (top and bottom), also year and year cancels (top and bottom), it will leave us with mm on top and days on bottom, <em>which is what we want</em>.

First answer choice is right.

6 0
3 years ago
Read 2 more answers
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