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2 years ago

Help me please. What is (2a+8) + (4a +5)

Mathematics

2 answers:

Rom4ik [11]2 years ago

8 0

Answer:

6a + 13

Step-by-step explanation:

2a + 4a = 6a

8 + 5 = 13

6a + 13

Nutka1998 [239]2 years ago

6 0

Answer: 6a+13

Step-by-step explanation:

2a+8+4a+5

2a+13+4a

now combine like terms:

2a+13+4a=

6a+13

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Evaluate each permutation 7p3

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If you have a graphing calculator, you could use it to solve this question.

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4 years ago

If 12g of a radioactive substance are present initially and 8yr later only 6g remain, how much if the substance will be present

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The weight of substance remaining after 13 years is 2.25 g.

Given:

Present weight of substance = 12 g

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Now, weight loss in 8 year will be,

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So, weight loss in 1 year will be,

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To know more about radioactive decay, refer to the link:

brainly.com/question/12116123

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3 years ago

Julia needs to make a box in the shape of a rectangular prism with a height of 3 inches and a volume of 243 cubic inches. The di

umka2103 [35]

The volume of a rectangular prism is equal to length*width*height. In this case, we have V = 243 and H = 3.
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