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Goshia [24]
3 years ago
15

-2 1/4 / (-1 1/2) = A) 1 1/2 B) -1 1/2 C) 3 3/8 D) -3 3/8

Mathematics
2 answers:
adell [148]3 years ago
8 0

Answer:

A) 1 1/2

Step-by-step explanation:

First, make sure both of the fractions are improper fractions. -2 1/4 will become -9/4 and -1 1/2 becomes -3/2. Then we do the keep, switch, flip trick and get -9/4 X -2/3 and multiply across. Since we have two negatives, the answer becomes positive. When we multiply across we get 18/12, then we reduce and get 1 6/12 which is the same as 1 1/2.

Scilla [17]3 years ago
5 0

Answer: 18/12=1 3/12=1 1/4

Step-by-step explanation:-2 1/4=-9/4   -1 1/2=-3/2 keep the first change /to* flip the last fration

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A group of 3 children and 2 adults pay a total of $121 to take a karate class. A group of 5 children and
Minchanka [31]

Answer:

The cost for a child is $7 and the cost for an adult is $50

Step-by-step explanation:

Let 'x' represent children

Let 'y' represent adults

The equations used to come to this answer are:

3x + 2y = 121 \\ 5x + 1y = 85

3x + 2y = 121 \\ 5x( - 2) + 1y( - 2) = 85( - 2) \\  \\ 3x + 2y = 121 \\  - 10x - 2y =  - 170 \\  - 7x =  - 49

Therefore; x = 7

5x + 1y = 85 \\ 5(7) + y = 85 \\ 35 + y = 85 \\ y = 85 - 35 \\ y = 50

6 0
2 years ago
<img src="https://tex.z-dn.net/?f=y%20%7B%7D%5E%7B3%7D%20%20%3D%2081" id="TexFormula1" title="y {}^{3} = 81" alt="y {}^{3} = 8
zvonat [6]
Y = 3\sqrt[3]{3}

81 is the same as 3 x 3 x 3 x 3. Therefore we can take out three of the four 3s and leave one inside the cube root radical. 
3 0
3 years ago
12. Jason wants to walk the shortest distance to get
just olya [345]

Answer:

I don't know

Step-by-step explanation:

but I am I sure that I can you please give it a shot if the harbor though I will Unite it to the wind strength and I will Unite it to the next level up and I will

8 0
3 years ago
Read 2 more answers
Choose all of the expressions that are equivalent to 3(4x + 3).
torisob [31]

Answer:

12x+9

Step-by-step explanation:

3(4x + 3)

Expand the brackets.

3(4x)+3(3)

Multiply.

=12x+9

5 0
3 years ago
Find the surface area of the cube with 2/3 units squared
Len [333]

Answer:

<h2><u><em>8/3 or 2.66.. units </em></u></h2>

           

Step-by-step explanation:

TSA of cube = 6a²

side = 2/3

= 6 x (2/3)²

= 6 x 4/9

= 2 x 4/3

=8/3

<u>Ans = 8/3 units or 2.66.. units</u>

HAVE A NICE DAY

STAY SAFE

PLS MARK BRAINLIST IF IT IS CORRECT

4 0
2 years ago
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