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Sedaia [141]
3 years ago
14

What is the answer to this

Mathematics
1 answer:
ICE Princess25 [194]3 years ago
7 0

2. -28

5. -60

8. -135

The answers are above. :)

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Efficiency is the ratio of output work to input work, expressed as a percentage. Light bulbs put out less light energy than the
grandymaker [24]

Answer:

  10%

Step-by-step explanation:

Using the given formula with the given data, we have ...

  efficiency = output work / input work

  = (10 J)/(100 J) = 0.10 = 10%

7 0
3 years ago
4. The length of Marshall’s rectangular poster is 2 times its width. If the perimeter is 24 inches, what is the area of the post
lubasha [3.4K]
The length is 7 with a width of 5, so the area is 35
3 0
3 years ago
I NEED HELP PLEASE !!!Sketch a rectangular prism that has a volume of 36 cubic cm. Label the dimensions of each side on the pris
navik [9.2K]

Answer:

  • Height: 3cm
  • Length: 6cm
  • Width: 2cm

Step-by-step explanation:

To sketch such a Rectangular Prism, all you need to do is to ensure that the product of the dimensions gives 36 cubic cm.

An example is attached:

  • Height: 3cm
  • Length: 6cm
  • Width: 2cm

Volume of a rectangular prism =  Length X Height X Width

=6 X 3 X 2

Volume=36 cubic cm

8 0
3 years ago
A gardener uses 1/3 of a liter of water to water 2/7 of a garden.
Serjik [45]

the gardener would need (1 + 1/6) liters of water to water the whole garden.

<h3>How much water would the gardener need to water the whole garden?</h3>

Here we know that the gardener needs 1/3 of a liter of water to water 2/7 of a garden.

Then we have the relation:

1/3 L = 2/7 of a garden.

Now, we want to get a "1 garden" in the right side of the equation, then we can multiply both sides by (7/2), so we get:

(7/2)*(1/3) L = (7/2)*(2/7) of a garden

(7/6)L = 1 garden.

(1 + 1/6) L = 1 garden

This means that the gardener would need (1 + 1/6) liters of water to water the whole garden.

If you want to learn more about fractions:

brainly.com/question/11562149

#SPJ1

5 0
1 year ago
The cost to mail a package is $7 for the first 2 pounds and 30 cents for each additional ounce. Which of the following functions
TiliK225 [7]
The cost to mail a 2-lb package is $7.
The cost to mail a 2-lb, 1 oz package is $7+$0.30(1).
That to mail a 2-lb, 2 oz package is $7+$0.30(2) = $7.60.

Following this pattern, the general formula is f(x) = $7 + $0.30x, where x represents the number of ounces OVER 2 lb.


5 0
3 years ago
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