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Mekhanik [1.2K]
4 years ago
8

What is -15÷3 please help me with this ​

Mathematics
2 answers:
Sergio [31]4 years ago
4 0

Answer:

-5

Step-by-step explanation:

You can work backwards with this problem if that helps you.  

so, what times 3 = -15

-5 times 3 = -15 so that would be the answer

bekas [8.4K]4 years ago
3 0

Answer:

-5

Step-by-step explanation:

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Solve the equation.<br> -2(x + 3) + 5x = -39
ivanzaharov [21]

Answer:

x= -11

Step-by-step explanation:

-2x-6+5x=-39

3x-6=-39

3x=-39+6

3x=-33

x= -11

5 0
3 years ago
PLEASE HELP ME ASAP ?!?!?
GaryK [48]

Answer:

m = 5 n = \frac{5\sqrt{3} }{2}

Step-by-step explanation:

5/2x2=5

5/3xsqrt3=5sqrt3/2

3 0
3 years ago
Mai runs around a 400 meter track at a constant speed of 250 meters per minute. How many minutes does it take Mai to complete 4
goldfiish [28.3K]

Answer:

6.4 minutes, or 6 minutes and 24 seconds

Step-by-step explanation:

She is running 4 laps, so she is running 1600 meters total.  If she runs 250 meters per minute, divide 1600 by 250 to determine how many minutes it will take...

1600/250  =  6.4

Which is 6 minutes + 0.4 minutes          

*there are 60 seconds in a minute, so the 0.4 represents 40% of another minute.  Multiply 60 by 0.4 to see how many seconds this is...

(0.4)60  = 24 seconds,

So she ran the laps in 6 minutes and 24 seconds

7 0
4 years ago
Read 2 more answers
Solve the equation. Then check your solution.
Free_Kalibri [48]

Answer:

a = -7/3

Step-by-step explanation:

4 - (3a + 4) = 7

4 - 3a - 4 = 7

-3a = 7

a = -7/3

4 0
3 years ago
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Of all the books at a certain library, if you select one at random, then there is a 90% chance that it has illustrations. Of all
lys-0071 [83]

Answer:

There will be a minimum of 8,100 books with coloured illustrations.

Step-by-step explanation:

Change the percentages to fractions

90% = 9/10

Books with Illustrations: 9/10 of 10,000

Books in Colour: 9/10 of 10,000

Because both events are not mutually exclusive, they can happen at the same time. So multiply their fractions (probabilities).

9/10 * 9/10 =

9 * 9 = 81

10 * 10 = 100

The probability of having a book with coloured illustrations is 81/100.

Find this as a fraction of 10000.

10000 ÷ 100 × 81 = 8,100

3 0
4 years ago
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