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bogdanovich [222]
3 years ago
10

Can someone help me with all these? .

Mathematics
1 answer:
Alika [10]3 years ago
3 0
Is that homework done
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5/4 to 3/8 as a percent change
Digiron [165]
Well, what's the diffrence from 5/4 to 3/8?

\bf \cfrac{5}{4}-\cfrac{3}{8}\qquad \stackrel{\textit{LCD is 8 clearly}}{\implies }\qquad \cfrac{10-3}{8}\implies \cfrac{7}{8}

so, if we take 5/4 to be the 100%, what is 7/8 off of it in percentage anyway?

\bf \begin{array}{ccll}
amount&\%\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
\frac{5}{4}&100\\\\
\frac{7}{8}&x
\end{array}\implies \cfrac{\quad \frac{5}{4}\quad }{\frac{7}{8}}=\cfrac{100}{x}\implies \cfrac{5}{4}\cdot \cfrac{8}{7}=\cfrac{100}{x}
\\\\\\
\cfrac{40}{28}=\cfrac{100}{x}\implies x=\cfrac{28\cdot 100}{40}
5 0
3 years ago
Oscar is trying to incorporate more exercise into his busy schedule. He has several short
katovenus [111]

Answer:

The arm routine lasts 10 minutes, and the abs routine lasts 15 minutes.

Step-by-step explanation:

Since Oscar is trying to incorporate more exercise into his busy schedule, and he has several short exercise routines he can complete at home, and last week, he worked out for a total of 35 minutes by doing 2 arm routines and 1 abdominal routine while That this week, he has completed 4 arm routines and 1 abdominal routine and spent a total of 55 minutes exercising, to determine how long does each routine last the following calculation must be performed:

2ARM + 1ABS = 35

4ARM + 1ABS = 55

4ARM + 1ABS - 2ARM - 1ABS = 55 - 35

2ARM = 20

ARM = 20/2

ARM = 10

2 x 10 + ABS = 35

ABS = 15

Therefore, the arm routine lasts 10 minutes, and the abs routine lasts 15 minutes.

7 0
3 years ago
Pls help 10th grade math
Rufina [12.5K]

Answer:

B

Step-by-step explanation:

each side is corresponded to the other so Q=U and P=S

6 0
4 years ago
Read 2 more answers
Please helpppppp
Viktor [21]

Answer:

Your equation you typed does not match the picture, which do I solve?

Step-by-step explanation:

6 0
3 years ago
What is the slope of the line that contains the points (7.-1) and (-2,-4)?
grin007 [14]

slope = (y2 - y1) / (x2 - x1)

         = (-4 - (-1)) / (-2 - 7)

         = -3 / -9

         = 3/9

         = 1/3

The answer is:

C. 1/3

4 0
3 years ago
Read 2 more answers
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