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9966 [12]
3 years ago
11

a student spent 15 minutes painting a 2 foot by 3 foot bulletin board. to the nearest tenth of a minute, how long did it take th

e student to paint 1 square foot?
Mathematics
1 answer:
Katyanochek1 [597]3 years ago
8 0
Area of the board divided by the time

2 x 3 = 6ft^2

15/6= 2.5mins
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Give two points with integer coordinates that have a slope of 5/7 between them.
mel-nik [20]

Answer:

(2,3) and (7,10)

Step-by-step explanation:

Use the slope 5/7 to get to a new point by moving up 5 units and moving to the right 7 units.

4 0
4 years ago
I need help with all of it ...
erastovalidia [21]
1)
36/3 x 42/3 = 12yd x 14yd

12×14=168

you will need 168 square yards to recarpet the kindergarten.


2)
168×24.99=4198.32

it will cost $4198.32 to recarpet the kindergarten.


3)
3.5 is 35% of 10

4198.32÷3.5=1198.52

they will need to sell 1199 coupon books to completely pay for the the recarpeting.
6 0
3 years ago
Find all solutions in the integers of the equation ||x−3|−5| = 10, where the bars indicate absolute value.
Helga [31]

Answer:

x = 18 or x = -12.

Step-by-step explanation:

||x-3|-5| = 10 only if |x-3|-5 = 10 or |x-3|-5 = -10, i.e., if |x-3|=15 or |x-3|=-5; but |x-3| cannot be equal to -5, because |x-3| should be a non-negative value. Therefore, the first equation is true only if |x-3|=15. |x-3| = 15 only if x-3 = 15 or x-3 = -15, i.e., x = 18 or x = -12.  We can verify this in the following way: ||18-3|-5|=||15|-5|=|10|=10 and ||-12-3|-5|=||-15|-5|=|15-5|=|10|=10. This verify that our solution is correct.

3 0
3 years ago
Plz help me well mark brainliest if correct ...?????.
jasenka [17]

Answer:

Apples

Step-by-step explanation:

8 0
3 years ago
7,545 rounded to the nearest hundred
Alex
The answer is 7,500.
Hope that helped!!!
5 0
3 years ago
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