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devlian [24]
3 years ago
14

Tessa had $35. She bought a book for $7 and a magazine for $5. Which expression correctly shows the total money Tessa has left?

Mathematics
2 answers:
Sedaia [141]3 years ago
6 0

Answer:

b

Step-by-step explanation:

because she had $35 in the beginning and then she spent 7 and 5 on 2 things

Deffense [45]3 years ago
4 0
The answer I believe is (B)
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I will give brainliest to the best answer to this question: Each year, the Department of Water Works measures the chloride conce
Maslowich

Answer:

The total change that will likely occur in 2 years is =-3\frac{2}{3} mg/L        

Step-by-step explanation:

Given : The first year, they found the chloride concentration changed by -1\frac{3}{5} mg/L .

It is estimated that the chloride concentration will change -2\frac{1}{15} mg/L the next year.

To find : What is the total change that will likely occur in 2 years?

Solution :

The chloride concentration changed by -1\frac{3}{5}=-\farc{8}{5} mg/L in first year.

The chloride concentration will change -2\frac{1}{15}=-\frac{31}{15} mg/L the next year.

The total change that will likely occur in 2 years is

=-\frac{8}{5}+(-\frac{31}{15})

=\frac{-24-31}{15}

=\frac{-55}{15}

=\frac{-11}{3}

In a mixed fraction - =-3\frac{2}{3} mg/L        

4 0
3 years ago
Read 2 more answers
How many feet are in 100 meters if 1 meter is 1.09 yards? Will mark brainliest if you include clear steps. Thank you!
kramer
Well, there are 3 feet in 1 yard, and 1.09 yards in 1 meter, so then

\bf 100~\underline{m}\cdot \cfrac{1.09~\underline{yd}}{\underline{m}}\cdot \cfrac{3~ft}{\underline{yd}}\implies \cfrac{100\cdot 1.09\cdot 3~ft}{1}\implies 327~ft

notice, we use the ratio, and whichever unit you want cancelled, you simply flip the ratio to have it cancelled, if the "m" is atop and you need that cancel, use the ratio with the "m" at the bottom, m/m = 1, and so they cancel out, and so on.
5 0
3 years ago
Find the area of the sector.<br> 1350<br> 18 km
harina [27]

Answer:

21870 km^2

Step-by-step explanation:

Area of sector=1/2r^2(theta)

Where r=18 km and theta=135

Area of sector=1/2(18)^2(135)

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7 0
3 years ago
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Which choice is a correct equation for the graph shown below?
Doss [256]

Answer:

C

Step-by-step explanation:

y = mx +b  The b is where the graph crosses the y axis.  If you look a the graph it is crossing at 5.  The m is the slope.  It is the change in y over the change in x.  If you start at 5 and go up10 and over 1, you will be on the line.  So our slope is 10/1 which is just 10

5 0
2 years ago
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Please help, il mark brainliest for the right answer
kari74 [83]

Answer:

I think that it may be 33

Because, you see 15-9=6

so you do 20-9=11

Then you do 25-9=16

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6 0
3 years ago
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