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Hoochie [10]
2 years ago
14

If Lisa earns $45 in 7.5 hours, find her unit rate in dollars per hour.

Mathematics
2 answers:
MakcuM [25]2 years ago
5 0

Answer: lisa earns 6 dollars per hour

Step-by-step explanation:

45 divided by 7.5 =6

lubasha [3.4K]2 years ago
4 0

Answer:

$45 ÷ 7.5 = $6 per hour

Step-by-step explanation:

So in conclusion your answer will be $6 per hour.

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Please help!! the table shows the number of hours that a group of friends spent in their first week training to run a marathon.
saw5 [17]
So if they all add 4 hours to their time then they have:
Jeff 9
Mark 14
Karen 9
Costas 13
Brett 11
Nikki 9
Jack 11

so now to find the mean you add all the numbers together to get 76 and then you divide it by the number of people (7 people) so 76 divided by 7 equals 10.8571429 and that's the mean.

Now to find the median you put all the numbers in order from least to greatest: 9;9;9;11;11;13;14 and you take the number in the middle but since both 11 and 11 are in the middle you take the mean of them and the mean of them is 11 so the median of the numbers is 11

now to find the range you take the largest number (14) and you subtract the smallest number (9) so 14 - 9 is 5 so 5 is the range

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8 0
3 years ago
Chris has 18 marbles and Kevin has 15 marbles. Chris gave half of his marbles to Kevin.
Helen [10]
Ok so…
The answer is: 15 more marbles
Because
18 divided by 2 is 9
15+9=24
Now Chris has 9
Kevin has 24
24-9=15
Hope this helps:)
5 0
2 years ago
Write an area word problem so that the solution is 36 square units
yawa3891 [41]

Answer:

Find the area of a cardboard box with a length of 9 inches and a width of 4 inches.

Step-by-step explanation:

9 in × 4 in = 36 in²

6 0
3 years ago
PLEASE PLEASE PLEASE HELP TRANSLATING SENTENCES INTO EQUATIONS
adell [148]

Answer:

5×(w + 7) = 4

Step-by-step explanation:

w is the unknown number.

5 times something means multiply something 5 times.

a sum means adding things

so, the sum of a number and 7 is

w + 7

5 times that sum is then

5×(w + 7)

and that while thing is (equals) 4

5×(w + 7) = 4

by the way, solving that means

5w + 35 = 4

5w = -31

w = -31/5

6 0
3 years ago
Read 2 more answers
Find the area of the triangle with A =42 degrees, b = 8 feet, and c = 5 feet. Round to the nearest tenth.
emmasim [6.3K]
We will use the formula:
Area = 1/2*a*c*sinB

where a and c are the length of the sides and B is the angle between those 2 sides

Area = 1/2*5*8*sin42
Area = 20*sin42
sin 42 = <span>0.669130606359
Area = </span>13.38261212718

Rounded to the nearest tenth Area is equal to 13.4
5 0
3 years ago
Read 2 more answers
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