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RSB [31]
3 years ago
13

john started homework at 7:00 pm he finish at 3:00 then he checked double the amount last time how much time did he spend

Mathematics
1 answer:
Scilla [17]3 years ago
8 0
K, so am assuming of th next day

from 7pm to 12 midnight is 5 hours
from 12 midnight so 3am is 3 hours
3+5=8

8 hours total

checked double the amoutn last time
he spent 16 hours last time?
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What percent of $375 is $11.25 and what percent of $56.25 is $11.25?
Angelina_Jolie [31]

Answer:

3%percent of $375 is $11.25 and 20% of $56.25 is $11.25 .

Step-by-step explanation:

Formula

Percentage = \frac{Part\ value\times 100}{Total\ values}

First Part

As given

Total value = $375

Part value = $ 11.25

Put values in the formula

Percentage = \frac{11.25\times 100}{375}

Percentage = \frac{1125}{375}

Percentage = 3 %

Second Part

Total value = $56.25

Part value = $11.25

Put the values in the formula

Percentage = \frac{11.25\times 100}{56.25}

Percentage = \frac{1125}{56.25}

Percentage = 20%

Therefore 3%percent of $375 is $11.25 and 20% of $56.25 is $11.25 .

3 0
3 years ago
Read 2 more answers
HELP MATH ASAP! MARKING BRANLIST
qwelly [4]

Answer:

-4/3

Step-by-step explanation:

Use the slope formula:

\frac{y2-y1}{x2-x2}

-4 - 12/ 13 - 1

-16/12

Simplifies to -4/3

8 0
3 years ago
ABC and DEF are similar. Find the missing side length.
mrs_skeptik [129]

Answer:

The missing side length is 5

Step-by-step explanation:

Basically 32 to 4 and 56 to 7 is 8 to 1, so you divide 40 by 8 to get the answer, 5

3 0
3 years ago
WILL MARK BRAINLIEST!!! A contractor has 34 meters of fencing that he is going to use as the perimeter of a rectangular garden.
snow_tiger [21]

Given

Shape of garden: Rectangle

Perimeter: 34 meters

Area: 72 square meters

Length of one side = x

Required

Find the dimension of the rectangle

Let the length of the other side of the rectangle be represented with y.

We start by writing out the perimeter of a rectangle

Perimeter, P = 2(L + B)

Where P is the perimeter; L and B are the length and width of the sides of the rectangle.

In this case L and B are represented by x and y

So,

P = 2(x + y)

By substituting 34 for P

34 = 2(x + y)

Multiply both sides by ½

½ * 34 = ½ * 2(x + y)

17 = x + y

Make y the subject of formula

y = 17 - x

Recall that the sides of the rectangle are represented by x and y.

Hence, the area of the rectangle is as follows.

Area = x * y

Substitute 72 for Area and 17 - x for y

72 = x(17 - x) --- Open bracket

72 = 17x - x² ---- Reorder

x² - 17x + 72 = 0

Now, we have a quadratic equation

Solving by factorisation

x² - 8x - 9x + 72 = 0

x(x - 8) - 9(x - 8) = 0

(x - 8)(x - 9) = 0

x - 8 = 0 or x - 9 = 0

x = 8 or x = 9

Recall that

y = 17 - x.

When x = 8

y = 17 - 8

y = 9

When x = 9

y = 17 - 9

y = 8

Writing out the result, we have

x = 8 , y = 9

Or

x = 9, y = 8

Hence, the dimension of the rectangle is 8 metres by 9 metres

7 0
3 years ago
1 of 20 (19 complete)
Marina86 [1]

I hope this helps you find the answer you're looking for

8 0
3 years ago
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