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d1i1m1o1n [39]
2 years ago
9

Can you help me i got two wrong if I get one wrong I will have a falling grade

Mathematics
2 answers:
KIM [24]2 years ago
5 0

Answer:

the bottom left is wrong

Step-by-step explanation:

if u add 40+5+7/10+1/100 it'll only equal to 45.71

Makovka662 [10]2 years ago
4 0

Answer:

40 + 5 + \frac{7}{10} + \frac{1}{100} = 45.71

Step-by-step explanation:

The one needs to be in the thousandths place.

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Find the inverse of y=100-x^2
AnnyKZ [126]

Answer:

The inverse  is ±sqrt(100-x)

Step-by-step explanation:

To find the inverse, exchange x and y

x = 100 -y^2

Solve for y

Subtract 100 from each side

x - 100 = -y^2

Divide by -1

-x +100 = y^2

Take the square root of each side

±sqrt(100-x) = sqrt(y^2)

±sqrt(100-x) =y

The inverse  is ±sqrt(100-x)

5 0
2 years ago
Four friends share 3535 of a rectangular pizza .What fraction of the pizza did each receive?
Gwar [14]

Answer:

\frac{35}{4}   or 8\frac{3}{4}

6 0
3 years ago
One long-distance company offers a plan such that each minute costs $0.10 and each call has a $0.25 service
gladu [14]

Answer:

<em>y=0.10(t)+0.25 </em>

<em>27 minutes and 30 seconds </em>

Step-by-step explanation:

We know that you start with 25 cents as a service fee, this is for making the call. For each minute you talk, 10 cents are added. Multiply the number of minutes spent by 10 cents a minute for the cost based on the call. Then add the 25 cents service fee.

If you talked for 5 minutes:

y=0.10(5)+0.25

y=0.50+0.25

y=0.75

75 Cents

For three dollars, you would plug in 3 for y

3.00=0.10(t)+0.25

-0.25            -0.25

2.75=0.10(t)

divide both sides by 0.10 to get

27.5=t

You can talk for 27 minutes and 30 seconds

27 minutes

<u>Hope this helps :-)</u>

3 0
3 years ago
Doug can paint the living room in 4 hours. it would take elaine 6 hours to paint the same room. how long would it take doug and
Jobisdone [24]
2.4 hours

You can get this by setting up the equation:

x/4 + x/6 = 1

Where x is equal to the amount of hours spent working. In this equation x/4 would be Doug. In 4 hours he would paint on room. x/6 would be Elaine. When you add them together using common denominators, you can find x. 
7 0
3 years ago
Evaluate the expression for r = 9.<br><br><br> 19 + r =
tatuchka [14]

Answer:

29

Step-by-step explanation:

because you add 19 and 9

8 0
2 years ago
Read 2 more answers
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