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Lesechka [4]
3 years ago
5

In a online survey, 78% of teens between the ages if 13 and 18 said they own a cell phone. About how many teens own cell phones

on a class of 250 students?

Mathematics
1 answer:
Dafna1 [17]3 years ago
6 0
It’s going to be 195 because if you add 55 to 195 it’s going to equal 250
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Find the area of the figure.
34kurt

Hello from MrBillDoesMath!

Answer:

89 square meters

Discussion:

The area of the figure is the area of the full rectangle minus the area of the triangle .


Rectangle area = 13 * 8 = 104

Triangle area = 1/2 bh = 1/2 ( 13 - 4 -4) * 6 = 1/2(5)*6 = 15

So the area of the figure - 104 = 15 = 89


Regards,  

MrB


7 0
4 years ago
solve the following pair of linear equation 2x+3y=5 , 7x-5y=2 has a unique solution if yes find the solution
slava [35]

Answer:

(1, 1 )

Step-by-step explanation:

Given the 2 equations

2x + 3y = 5 → (1)

7x - 5y = 2 → (2)

Multiplying (1) by 5 and (2) by 3 and adding will eliminate the y- term

10x + 15y = 25 → (3)

21x - 15y = 6 → (4)

Add (3) and (4) term by term to eliminate y

31x = 31 ( divide both sides by 31 )

x = 1

Substitute x = 1 into either of the 2 equations and evaluate for y

Substituting into (1)

2(1) + 3y = 5

2 + 3y = 5 ( subtract 2 from both sides )

3y = 3 ( divide both sides by 3 )

y = 1

Solution is (1, 1 )

8 0
4 years ago
Read 2 more answers
Quiz<br> What is a solution for this system of equations?<br> y= 7x + 2<br> y = x + 8
Sever21 [200]

If you are looking for the intersect between the two lines, the answer is (1, 9)

6 0
4 years ago
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Lacy opened a savings account and deposited $100. The account earns 6% interest compounded monthly if she wants to use the money
Dafna11 [192]

Answer:

Future Value= $112.72

Step-by-step explanation:

Giving the following information:

Initial deposit (PV)= $100

Number of periods (n)= 2*12= 24 months

Interest rate (i)= 0.06/12= 0.005

<u>To calculate the future value (FV), we need to use the following formula:</u>

FV= PV*(1 + i)^n

FV= 100*(1.005^24)

FV= $112.72

5 0
3 years ago
you have it $15 for the movie the cost of a movie ticket is $3 write an inequality to show how much money you can spend on treat
dalvyx [7]

Answer:

$3+x is less than or equal to $15

Step-by-step explanation:

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7 0
3 years ago
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