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Ronch [10]
3 years ago
7

If you help me on all of these I'll mark you as a brainless

Mathematics
2 answers:
Tpy6a [65]3 years ago
4 0
9. 2,000
10. 3,200
11. 3,000
12. 1,800
13. 120
14. 125
15. 75
16. 30
17. 
18.
 I can't see the last two
sammy [17]3 years ago
3 0
Sure!
9)2,000
10) 3,200
11)3,000
12)2,000
13)120
14)125
15)80
16)35
And I can't see all the answers for 17 and 18
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In​ 2015, there were approximately 31,800 firearms fatalities. Express this quantity in deaths per hour
viva [34]
I could be wrong, but just divide 31,800 by 365 which would give you the number of fatalities each day, then divide that number by 24. that should give you the number of deaths in an hour. Again, could be totally wrong.
8 0
3 years ago
If 12 men are needed to run 4 machines how many men are needed to run 20 machines
OLEGan [10]
6.66666667 should be your answer...probably should round it though
6 0
3 years ago
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Income amelia has a job babysitting for a neighbor. She is paid $20 plus $2.50 for each hour on the job. If amelia wants to earn
yarga [219]
Ok so firsst you do 40-20=20 20÷2.50=8 so that means amelia needs to babysit 8 hours to get $40
hope this helpd
4 0
3 years ago
RectangleABCD has vertices at A(– 3, 1),B(– 2, – 1),C(2, 1), andD(1, 3). What is the area, in square units, of this rectangle? A
Anna [14]

Answer:

Option A. 10\ units^{2}

Step-by-step explanation:

we know that

The area of the rectangle is equal to

A=LW

where

L is the length of rectangle

W is the width of rectangle

we have

A(-3,1),B(-2,-1),C(2,1),D(1,3)

Plot the vertices

see the attached figure

L=AD=BC

W=AB=DC

the formula to calculate the distance between two points is equal to

d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}

<em>Find the distance AD</em>

A(-3,1),D(1,3)

substitute in the formula

AD=\sqrt{(3-1)^{2}+(1+3)^{2}}

AD=\sqrt{(2)^{2}+(4)^{2}}

AD=\sqrt{20}

AD=2\sqrt{5}\ units

<em>Find the distance AB</em>

A(-3,1),B(-2,-1)

substitute in the formula

AB=\sqrt{(-1-1)^{2}+(-2+3)^{2}}

AB=\sqrt{(-2)^{2}+(1)^{2}}

AB=\sqrt{5}

AB=\sqrt{5}\ units

Find the area

A=(2\sqrt{5})*(\sqrt{5})=10\ units^{2}

4 0
3 years ago
How much would $200 invested at 5% interest compounded monthly be worth after 9years? Round your answer to the nearest cent
Feliz [49]

Answer:

$311.20

Step-by-step explanation:

Here we are required to use the Compound interest formula for finding the Amount at the end of 9th year

The formula is given as

A=P(1+\frac{r}{n})^{tn}

Where ,

A is the final amount

P is the initial amount = $200

r is the rate of interest = 5% annual = 0.05

n is the frequency of compounding in a year ( Here it is compounding monthly) = 12

t is the time period = 9

Now we substitute all these values in the formula and solve for A

A=200(1+\frac{0.05}{12})^{9\times 12}

A=200(1+0.00416)^{108}

A=200(1.00416)^{108}

A=200 \times 1.556

A=311.20

Hence the amount after 9 years will be $311.20

4 0
3 years ago
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