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hjlf
3 years ago
10

Adding and Subtracting Positive and Negative Fractions and Decimals. Estimate each problem to check if the students answer is re

asonable.
2) -3 1/6 + 6 2/3
Help pls
Mathematics
1 answer:
AnnyKZ [126]3 years ago
8 0
The answer is 3 1/2 or in decimal form it is 3.5
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Does the ordered pair (−5,−5) satisfy the following system of equations?<br> {−3x−3y=125x+5y=−20
FrozenT [24]

Well, let's see. The problem gave you an ordered pair. In other words, you have an 'x' and a 'y' coordinate. All you need to do is put them into the equation.

Step-by-step explanation:

This means that instead of --

-3x - 3y = 125 + 5y = -20

We would have:

-3(-5)-3(-5) = 125(-5) + 5(-5) = -20

From here, you just simplify it into:

30 = -650 = -20

Since the values are not the same, the ANSWER is NO. The ordered pair does not satisfy the following system of equations.

3 0
3 years ago
A carpet square is 9inches what’s the area of the carpet square?
AleksAgata [21]

Answer:

The area of the carpet which is square in shape is  81 inches^2

Step-by-step explanation:

Given:

side of the carpet square  = 9 inches

To Find:

area of the carpet square = ?

Solution:

The area of the carpet =  area of the square

we know that the area of the square  is

=> side X side

Substituting the side of the square, we get

=> 9 X 9

=> 81 inches^2

6 0
3 years ago
A lawn mower manufacturer incurs a total of $34,816 in overhead costs and $388 per lawn mower in production costs. How many lawn
blsea [12.9K]
Let x represent the amount of lawn mowers that were manufactured

The company has to pay $34,816 before they even make any lawn mowers plus $388 per lawn mower.

((34816+388x)/x)=660
34816+388x=660x
34816=272x
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Therefore, there were 128 lawn mowers manufactured
5 0
3 years ago
45 of the 80 children in the club or girls what was the ratio of boys to girls in the club?
Oxana [17]

There are 80 children. 45 of them are girls. The amount of boys is equal to:

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That means there are 45 girls and 35 boys.

The ratio of boys to girls is: 35:45

Simplify:

35 \div 5 = 7 \\ 45 \div 5 = 9 \\ \\35:45 \rightarrow 7:9

Your answer is 7:9

5 0
3 years ago
21) Martha's aunt bought $26 for 20 plants. Some were
a_sh-v [17]

Answer:

8 carnations and 12 zinnias

Step-by-step explanation:

4 0
3 years ago
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