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kumpel [21]
2 years ago
9

A doctor collected data on how many hours children of different ages slept in a day. Data for 5 participants are

Mathematics
1 answer:
andre [41]2 years ago
4 0

The answers is the picture I posted. I did in khan academy and it was right.

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city water tank holds 20 gallons of water. A technician empties 25% of the tank. How many more gallons of water must be removed
eduard

Answer:

7

Step-by-step explanation:

7 0
2 years ago
−5y+3x=3<br> −8y+9x=−12<br> ​<br> What is X and Y please.
Tomtit [17]

Answer:

( -4, -3 )

Step-by-step explanation:

Let's solve by elimination. Reason being there are no variables without coefficients.

−5y+3x=3     Multiply equation by 3. Each term.  

−8y+9x=−12

-15y + 9x = 9       Subtract the to equations

-8y  + 9x = -12

___________

-7y = 21

y = -3

Substitute y into original equation

-5(-3) + 3x = 3

15 + 3x = 3            Subtract 15 both sides

3x = -12                 Divide by 3, both sides

x = -4

4 0
3 years ago
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Translate into an inequality:
qwelly [4]

Answer: x < 2/3

Step-by-step explanation:

8 0
3 years ago
The cost to purchase a golf ball is $5 at Marty’s Sports Goods. To purchase a golf ball at Golf Club you must be a member. The m
tigry1 [53]

Answer:

15 golf balls

Step-by-step explanation:

6 0
3 years ago
While waiting for a video game to download, you notice that 30%, percent of 32,000 kilobytes have been downloaded so far. How ma
agasfer [191]
To find 30% of 32,000, first divide by 100 to find 1%, then multiply the result by 30 to find 30%:
\frac{32000}{100}\times30=9,600\ kB
4 0
3 years ago
Read 2 more answers
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