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3 years ago

Help plzzz on both looooooooooooooooll

Mathematics

1 answer:

zloy xaker [14]3 years ago

3 0

Answer:

the answer is yes hope this helps you

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May runs10/4 miles everyday after school .Beth says that she runs farther then May everyday 5/2 miles after school is her correc

Shalnov [3]

They run an equally amount of time because 10/4 = 2 and 1/2 and 5/2 = 2 and 1/2

5 0

3 years ago

Kevin, can clean a stadium in 5 hours working alone. Chris, can

LenaWriter [7]

Answer: It will about 1.88 hours or 1 hour 52.5 minutes to clean the stadium if they work together .

Step-by-step explanation:

Given : Time taken by Kevin to clean a stadium = 5 hours

Rate of work done by Kelvin = $\dfrac{1}{5}$

Time taken by Chris to clean a stadium = 3 hours

Rate of work done by Chris = $\dfrac{1}{3}$

Let t be the time taken by both of them to clean the stadium together.

According to the question , we have

Rate of work done together = Rate of work done by Kelvin+Rate of work done by Chris

$\dfrac{1}{t}=\dfrac{1}{5}+\dfrac{1}{3}\\\\ \Rightarrow\ \dfrac{1}{t}=\dfrac{3+5}{15}\\\\ \Rightarrow\ \dfrac{1}{t}=\dfrac{8}{15}\\\\\Rightarrow\ t=\dfrac{15}{8} =1.875$

$t=1+0.875$ hours

$t=1\text{ hour }+0.875(60)\text{ minutes}$ [∵ 1 hour = 60 minutes]

$t=1\text{ hour }+52.5\text{ minutes}= \text{1 hour 52.5 minutes}$

Hence, It will about 1.88 hours or 1 hour 52.5 minutes to clean the stadium if they work together .

5 0

3 years ago

Im factoring and i need to find what times what equals 120 but subtracts to be 7

geniusboy [140]

It would have to be 15 and 8

7 0

3 years ago

13+[8×16-(24+5×b)÷2]÷3-45=0

alexgriva [62]

13 + [128 + (-24 - 5b)/2)]/3 - 45 = 0
(52 - 5b/2)/3 = 32
52/3 - 5b/6 = 32
14.67(6) = -5b
b = 88/-b
b= -17.6

5 0

3 years ago

Read 2 more answers

Do the concepts of class limits, marks, cutpoints, and midpoints make sense for qualitative data? Explain your answer.

tatyana61 [14]

Class limits are the smallest and the largest data value that can go into a class.

Class marks are the midpoints of the classes. They are obtained by averaging the limits.

Cutpoints are specified values used to sort continuous variables into discrete categories.

Class Midpoint is the middle value of each data class.

For qualitative data, cutpoints and midpoints make sense, but class limits and marks do not, since qualitative data cannot be grouped using Limit grouping.

option D.

3 0

3 years ago