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Artemon [7]
3 years ago
9

Can anyone help me with these questions

Mathematics
2 answers:
expeople1 [14]3 years ago
7 0

Answer:

1. 31.14

2. 46

Step-by-step explanation:

1. Using order of operations, we first simplify what's in the parentheses, so we do 4.1-(-6.2), or 4.1+6.2. This gives us -5+3.8(10.3). Next is multiplication, so we do 3.8(10.3), which gets us to -5+39.14. Lastly, we add, to get 31.14.

2. First, we solve in the parentheses. Within the parentheses, we do multiplication first, so we first do 3*-2, to get us 8-4(-6+(-13))÷2. Then, we solve inside the parentheses, so we do -6+(-13), to get 8-4(-19) ÷2.

Next, since multiplication and division are on the same level, we go from left to right, so we do -4*-19 first, to get 8+76÷2. Now we do division, to get 8+38. Lastly, we add, to get 46.

seropon [69]3 years ago
4 0

Answer:

9) 34.14

10) 46

Step-by-step explanation:

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gulaghasi [49]

Answer:

1/2 = r

Step-by-step explanation:

7r + 21 = 49r

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7r-7r + 21 = 49r-7r

21 = 42r

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21/42 = 42r/42

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2 years ago
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EXPLANATION

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valina [46]
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