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Irina18 [472]
3 years ago
12

Simplify the expression by combining like terms. 16+8a−3a+6b−9

Mathematics
2 answers:
uranmaximum [27]3 years ago
5 0

Answer:

5a+6b+7

is the right expression

Step-by-step explanation:

Svetradugi [14.3K]3 years ago
4 0
7+5a+6b is the answer because 16-9 is 7 and 8-3 is 5.
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Answer:

The area of a circle is pi times the radius squared (A = π r²).

Step-by-step explanation:

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3 years ago
B Christian installed an electric pump to pump water from a borehole into a 30 000 litre cement dam. If the water is pumped at a
skelet666 [1.2K]

Given the amount of water needed to fill the cement dam and the water pump rate, the time needed to fill the dam is 400 minutes or 6hours 40minutes.

Option B)6h 40min is the correct answer.

<h3>How long does it take to fill the dam?</h3>

Given that;

  • Amount of water needed to fill the dam A = 30000 litres
  • Pump rate r = 75 litres per minute
  • Time needed to fill the dam T = ?

To determine how long it take to fill the dam, we say;

Time need = Amount of water needed ÷ Pump rate

T = A ÷ r

T = 30000 litres ÷ 75 litres/minute

T = 400 minutes

Note that; 60min = 1hrs

Hence,

T = 6hours 40minutes

Given the amount of water needed to fill the cement dam and the water pump rate, the time needed to fill the dam is 400 minutes or 6hours 40minutes.

Option B)6h 40min is the correct answer.

Learn more word problems here: brainly.com/question/2610134

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8 0
2 years ago
PLS HELP. 16points. Please number your responses to the questions as they are shown (1 and 2).
anastassius [24]
I recommend using photomath
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2 years ago
Find the distance between the two points.<br> 3. (-3, -1), (6, 2)
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Answer:

Step-by-step explanation:

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Can someone help please? this is due soon :( <br><br> ill give brainliest for the correct answer. :)
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Answer is B
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