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VikaD [51]
2 years ago
10

It cost Brody $9.80 to send 196 text messages. How many text messages did he send if he spent $4.20?

Mathematics
1 answer:
Finger [1]2 years ago
3 0
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To get a B in​ math, Alexandria Pappas must average 80 on five tests. Scores on the first four tests were 82​,74​,82​,and 74.Wha
motikmotik

Answer:

88 score.

Step-by-step explanation:

Given:

To get a B in​ math, Alexandria Pappas must<u> average 80</u> on five tests.

Scores on the first four tests were <em>82​, 74​, 82​, and 74.</em>

Question asked:

What is the lowest score that she can get on the last test and still get a​ B?

Solution:

Let lowest score she can get on the last test = x

As we know:

Average=\frac{Sum\ of \ observations}{Number\ of\ observations}\\ \\ 80=\frac{82+74+82+74+x}{5} \\ \\

By cross multiplication:-

80\times5=312+x \\ \\400=312+x\\Subtracting\ both\ sides\ by\ 312\\400-312=312-312+x\\88=x

Thus, she can get 88 score on the last test to get a B in​ math.

5 0
3 years ago
The perimeter of a square is 4/5 what is its area
34kurt

Answer:

1/25

Step-by-step explanation:

square has 4 sides, if you add them all up you get 4/5.

1/5+1/5+1/5+1/5=4/5

so each side is 1/5

Area=length * width

A=1/5*1/5=1/25

3 0
2 years ago
What's the inverse of x+y=7
serious [3.7K]

Answer: x-y=7

Step-by-step explanation:

4 0
2 years ago
GCF of 110x^3, 30x^4, 60x^8
liberstina [14]
10x^3 is the greatest common factor
8 0
3 years ago
Solve 7x + 2 &lt; 9x - 4
Alexus [3.1K]

Answer:

\boxed{\bold{x>3}}

Step By Step Explanation:

Subtract 2 From Both Sides

\bold{7x+2-2

Simplify

\bold{7x

Subtract 9x From Both Sides

\bold{7x-9x

Simplify

\bold{-2x

Multiply Both Sides By -1 (Reverse Inequality)

\bold{\left(-2x\right)\left(-1\right)>\left(-6\right)\left(-1\right)}

Simplify

\bold{2x>6}

Divide Both Sides By 2

\bold{\frac{2x}{2}>\frac{6}{2}}

Simplify

\bold{x>3}

- Mordancy

5 0
3 years ago
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