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jenyasd209 [6]
3 years ago
11

Evaluate 3a+2b a=2 b=3

Mathematics
1 answer:
Pavlova-9 [17]3 years ago
8 0

Answer:

12

Step-by-step explanation:

3a+2b

Let a =2 and b=3

3(2) + 2(3)

6 + 6

12

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(7) It takes 1 & 1/4 minutes to fill a 3-gallon bucket of water with a hose. At this rate, how long does it take to fill a 5
Svetlanka [38]

It takes 20.833 minutes to fill a 50 gallon tub

<em><u>Solution:</u></em>

Given that,

It takes 1 & 1/4 minutes to fill a 3-gallon bucket of water with a hose

1\frac{1}{4}\ minutes = \frac{4 \times 1 + 1}{4} = \frac{5}{4} = 1.25\ minutes

Let "x" be the time taken to fill a 50 gallon tub

Therefore, from given,

1.25 minutes = 3 gallon

x minutes = 50 gallon

This forms a proportion and we can solve the sum by cross multiplying

1.25 \times 50 = x \times 3\\\\3x = 62.5\\\\x = \frac{62.5}{3}\\\\x = 20.833

Thus it takes 20.833 minutes to fill a 50 gallon tub

4 0
3 years ago
Tons of points easy what is 9.5 x 19 equal
Andru [333]
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6 0
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4736 divided by 100 for math
damaskus [11]
If you divided 4.736 ÷ 100 you have to find the times 100 is in 473, is 4 times, then you have to find how many times is 100 in 736, is 7 times, then you have 36 but this is not a entire number then you add a 0, 100 is 3 times in 360, now you have a 6, you add two zeros, 100 is six times in 600. 47,36 is the answer.
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The tangential acceleration and velocity are
Vikentia [17]

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256 lieh

Step-by-step explanation:

4 0
4 years ago
Please answer quickly!!!
mixas84 [53]

Answer:

Step-by-step explanation:

5x + 13y = 232

12x + 7y = 218

For each choice:

a) The first equation can be multiplied by –13 and the second equation by 7 to eliminate y. So we have

- 65x - 169y = - 3016

84x + 49y = 1526

Can not eliminate x and y.

b) The first equation can be multiplied by 7 and the second equation by 13 to eliminate y. So we have

35x  + 91 y = 1624

156x + 91y = 2834

Can not eliminate x and y if we ADD.

<em>(If we subtract, this is Yes)</em>

<em></em>

c) The first equation can be multiplied by –12 and the second equation by 5 to eliminate x.

-60x - 156y = - 2784

60x + 35y = 1090

The answer is YES

d) The first equation can be multiplied by 5 and the second equation by 12 to eliminate x.

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Can not eliminate x and y

The final answer is C

3 0
4 years ago
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