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GenaCL600 [577]
2 years ago
11

WRITE AN EQUATION

Mathematics
1 answer:
vova2212 [387]2 years ago
6 0
First subtract to keep the magazine out,
8.20 - 5 = 3.2
Since you bought four erasers, you’ll divide your answer by four,
3.2 / 4 = 0.80
So every eraser cost 0.80 or 80cents
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Find two numbers if there sum is 7.2 and their difference is 2.7
Sidana [21]

Answer:

2.25 and 4.95

Step-by-step explanation:

x + y = 7.2

x - y = 2.7

x = 7.2 - y

x - y = 2.7

(7.2 - y) - y = 2.7

7.2 - 2y = 2.7

-2y = 2.7 - 7.2

-2y = -4.5

-2y/-2 = -4.5/-2

y = 2.25

x + y = 7.2

x + 2.25 = 7.2

x = 7.2 - 2.25

x = 4.95

Check: 4.95 and 2.25

x + y = 7.2

(4.95) + (2.25) = 7.2

7.2 = 7.2

x - y = 2.7

(4.95) - (2.25) = 2.7

2.7 = 2.7

6 0
3 years ago
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What metric unit would you use to measure the length of a football field?
Sati [7]
Meters, yards are not in the metric system

3 0
3 years ago
Hiiiiiii friend me plzz i will do more like this
olga55 [171]

Answer:

ok

Step-by-step explanation:

8 0
3 years ago
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What is this (20+25)/3
katrin [286]

Answer:

78 witch is 15%

Step-by-step explanation:

3 0
3 years ago
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Jordan is mixing water and flour to make tortillas. The number cups of water, w needed for f cups of flour is described by the e
Tresset [83]

Answer:

1\frac{1}{3} cups of flour.

Step-by-step explanation:

Given that:

w is the number of cups of water to be mixed with flour for making tortillas.

f is the number of cups of flour to be mixed with water for making tortillas.

Relation between w and f is given by the equation:

w=0.75f

To find:

Number of cups of flour to be added if number of cups of water to be used is 1.

Solution:

We are given an equation with two variables.

Value of one variable is given and we have to find the value of other variable.

1=0.75f\\\Rightarrow f = \dfrac{1}{0.75}\\\Rightarrow f = 1.33

Number of cups of flour to be added = 1\frac{1}{3}

6 0
2 years ago
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