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MatroZZZ [7]
3 years ago
13

What are these two questions please help

Mathematics
1 answer:
Kay [80]3 years ago
3 0
15 feet is what I came up with.

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To convert 0.7 hours into minutes, which ratio could you multiply by? Remember that 1 hour = 60 minutes.
ira [324]
0.7hr(60min/hr)=42 min

The ration you multiplied by was 60min/hr, to cancel out the hr unit label...
3 0
3 years ago
I NEED FAST HELP!!!!!!!!!!!!!!!!!!!
Sindrei [870]

Answer:

The student is expected to spend <em>15.4 hours </em>doing homework

Step-by-step explanation:

The scattered plot shows there is a close correlation between the variables. A line of best fit will go through the 'center' of the points. Since we are not required to find an exact line, we'll draw it in red color as shown below

To know the equation of that line, we must take two clear points of it from the graph. We'll pick (28,4) and (4,25)

The equation of a line, given two points (a,b) and (c,d) is

\displaystyle y-b=\frac{d-b}{c-a}(x-a)

Using the selected points

\displaystyle y-4=\frac{25-4}{4-28}(x-28)

Simplifying and computing results, the equation is

\displaystyle y=-\frac{7}{8}x+\frac{57}{2}

Using that equation, we can predict how many hours the students will spend doing homework if they spend 15 hours watching TV

\displaystyle y=-\frac{7}{8}(15)+\frac{57}{2}=15.4 hours

So the student is expected to spend 15.4 hours doing homework

7 0
3 years ago
Question
maria [59]

Answer:

He needs 16 ounces of raisins and 8 ounces of nuts

Step-by-step explanation:

Let

x -----> the number of ounces of raisins

y -----> the number of ounces of nuts

we know that

x+y=24 -----> equation A

x=2y -----> equation B

Solve the system by substitution

Substitute equation B in equation A and solve for y

(2y)+y=24

3y=24

y=8 ounces of nuts

Find the value of x

x=2(8)=16 ounces of raisins

therefore

He needs 16 ounces of raisins and 8 ounces of nuts

8 0
3 years ago
Read 2 more answers
A researcher conducts an independent-measures study examining the effectiveness of a group exercise program at an assisted livin
Veronika [31]

Answer:

Check the explanation

Step-by-step explanation:

Kindly check the attached images below to see the step by step explanation to the question above.

4 0
3 years ago
HURRY! I need help on my exam. (10pts!)
Anna [14]

Answer:

oof

Step-by-step explanation:o o o f

7 0
3 years ago
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