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dalvyx [7]
3 years ago
12

How many students have a cell phone but do not have a tablet?

Mathematics
1 answer:
Maslowich3 years ago
5 0

Answer:

B, 21

Step-by-step explanation:

78 minus 57 is 21, thus B is the correct choice

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A square has a perimeter of 28
Kisachek [45]

Answer:

24

Step-by-step explanation:

To find the side length of a square, you have to divide the perimeter by 4 (since a square has 4 sides). 28 divided by 4 is 7 and 20 divided by 4 is 5. to find the area of each square, you have to multiply each side length by two. 7 times 7 is 49 and 5 times 5 is 25. 49 minus 25 is 24.

5 0
3 years ago
If f(x) = 5x - 11, find f(-2m + 5)
sukhopar [10]

f(-2m + 5)=5(-2m+5)-11=-10m+25-11=-10m+14

8 0
3 years ago
Brandon is shopping at Old Navy during a sale. All shorts are $16 each and all t-shirts are $10 each.He has $100 to spend and wo
DaniilM [7]
Let
x = the number of shorts bought
y =  the number of t-shirts bought

A pair of shorts costs $16 and a t-shirt costs $10. Brandom has $100 to spend.
Therefore
16x + 10y ≤ 100
This may be written as
y ≤ - 1.6x + 10                 (1)

Brandon wants at least 2 pairs of shorts. Therefore
x ≥ 2                               (2)

Graph the equations y = -1.6x + 10 and  x = 2.
The shaded region satisfies both inequalities.

Answer:
Two possible solutions are
(a) 3 pairs of shorts and 4 t-shirts,
(b) 4 pairs of shorts and 2 t-shirts.

7 0
3 years ago
The present shown below is a cube.<br> Find the surface area of the present.
Kruka [31]
To answer this you need to multiply 20 by 20. this gives 400cm
or you can also square 20
3 0
3 years ago
Read 2 more answers
How many bags of pretzels does Tim buy
miss Akunina [59]
Is there anything else to this question 
6 0
3 years ago
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