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padilas [110]
3 years ago
14

Jack spends 1 1/2 times as long on his homework as Jill.

Mathematics
2 answers:
Mashcka [7]3 years ago
6 0

Answer:

12  3/4

Step-by-step explanation:

8.5 times 1 is 8.5

and 8.5 times .5 is 4.25

so 8.5 plus 4.25 is 12.75 or 12  3/4

Minchanka [31]3 years ago
4 0

Answer:

12 3/4 hours

Step-by-step explanation:

Jack spends 1 1/2 times as long on his homework as Jill .

Jill spends 8 1/2 in doing his home work .

Time spent by jack in doing his homework is jacks time multiplied by Jill’s

That’s

1 1/2 x 8 1/2

Change to improper fractions.

We have,

3/2 x 17/2

Multiply through

51/4 = 12 3/4

Jack spends 12 3/4 hours in doing his homework

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Answer:

438.97 cm²

Step-by-step explanation:

To find the surface area, we break up the figure into two pieces(blue and yellow) and then add them together.

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2 · (6 · 16 + 4 · 16 + 4 · 6)

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5 0
3 years ago
A rectangular prism has a length of 8 in., a width of 4 in., and a height of 214 in.
Ivan

For this case we have that by definition, the volume of a rectangular prism is given by:

V = A_ {b} * h

Where:

A_ {b}: It is the area of the base

h: It is the height

So:

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The volume of the prism is:

V = 32 * 214 = 6848 \ in ^ 3

Now, the volume of the cubes is:

V = (14) ^ 3 = 2744 \ in ^ 3

Thus, we divide and find the number of cubes to fill the prism:

n = \frac {6848 \ in ^ 3} {2744 \ in ^ 3}\\n = 2.5

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n = 2.5

8 0
3 years ago
Help me please:<br> 3/4 - 7/9 + 2/3 =
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Answer:

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Step-by-step explanation:

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8 0
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Read 2 more answers
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Answer:

x=3

Step-by-step explanation:

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5 0
3 years ago
Write the equation in standard form. x = -4y + 8 *
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Answer:

x+4y=8

Step-by-step explanation:

graph shown below

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