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N76 [4]
3 years ago
5

-21+7u=28 solve for u

Mathematics
2 answers:
ch4aika [34]3 years ago
5 0

Answer:

u = 7

Step-by-step explanation:

-21 + 7u = 28

add 28 to both sides

7u = 49

divide by 7

u = 7

horrorfan [7]3 years ago
5 0

Answer:U=7

Step-by-step explanation:

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Damon makes 20 cups of lemonade by mixing lemon juice and water. The ratio of lemon juice to water is shown in the tape diagram.
Effectus [21]

Answer:  4 cup

Step-by-step explanation:

Here, the total number of cups in lemonade = 20 cups

In which some are cup of lemon juice and some are cups of water.

And, the ratio of cups of lemon juice and water in one lemonade = 1 : 4

Let the cups of lemon juice in one lemonade = 1 x

And, The cups of water in one lemonade = 4 x

Where x is any number.

Thus, 1 x + 4 x = 20

⇒ 5 x = 20

⇒ x = 20/5 = 4

Thus, Damon uses 4 cup of lemon juice in one lemonade.

6 0
3 years ago
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What is the area of a circle with a radius of 1 foot?<br> *Ht2<br> 2***<br> seft<br> 2 x ft?
Svetach [21]

Answer:

pi

Step-by-step explanation:

5 0
3 years ago
Sharon and Jacob started at the same place. Jacob walked 3 m north and then 4 m west. Sharon walked 5 m south and 12 m east. How
Ilya [14]

Consider the coordinate plane:

1. The origin is the point where Sharon and Jacob started - (0,0).

2. North - positive y-direction, south - negetive y-direction.

3. East - positive x-direction, west - negative x-direction.

Then,

  • if Jacob walked 3 m north and then 4 m west, the point where he is now has coordinates (-4,3);
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The distance between two points with coordinates (x_1,y_1) and (x_2,y_2) can be calculated using formula

D=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}.

Therefore, the distance between  Jacob and Sharon is

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7 0
3 years ago
3 classmates share 2 granola bars equally.
umka21 [38]

Answer:

3/2 or 1.5

Step-by-step explanation:

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5 0
3 years ago
5 times as much as 16 diveded by 8
mixer [17]

The answer for this is 10

4 0
3 years ago
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