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RoseWind [281]
3 years ago
10

What is the solution to 31–3x + 9 = -18?

Mathematics
1 answer:
Naya [18.7K]3 years ago
4 0
For this question,The answer is, x=-9
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QUESTION 1 Evaluate −30 ÷ −6. a 5 b −5 c 6 d −6 QUESTION 2 Evaluate 62 ÷ (3 + 9). a3 b4 c12 d21 QUESTION 3 Danny made a mistake
Mashcka [7]

Answer:

A; ?; Line 3

Step-by-step explanation:

Question 1:

-30 divided by -6 is 5.

The negatives cancel each other out.

And 30 divided by 6 is simply 5.

Question 2:

62\div(3+9)

Do the operation inside the parenthesis first:

62\div12

Divide. 12 does not go into 62 evenly. 12 times 5 is 60, so the answer is 5 remainder 2:

62\div12=5\text { R}2

Or in fractions:

31/6

(Was there a typo? From what you've given me, the correct answer is not listed.)

Question 3:

So we have to following steps:

\text{Line 1: } 21+35\div7+6(2)\\\text{Line 2: }21+5+6(2)\\\text{Line 3: }21+11(2)\\\text{Line 4: }21+22\\\text{Line 5: }43

The mistake is in Line 3. Danny cannot just combine 5+6(2) into 11(2). Instead, he should multiply 6(2) and then add. Thus, the correct solution is:

\text{Line 1: } 21+35\div7+6(2)\\\text{Line 2: }21+5+6(2)\\\text{Line 3: }21+5+12\\\text{Line 4: }26+12\\\text{Line 5: }38

3 0
3 years ago
What is the math answer ×+9=12
tamaranim1 [39]
Answer: x=3

work: x+9=12
x=12-9
x=3
6 0
3 years ago
Read 2 more answers
At 5:00 am a ship leaves the dock and heads out to sea. It travels at a rate of 30 mph. At 7:00
prisoha [69]

Answer:

It will take 3hrs for the second ship to catch up with the first ship.

Step-by-step explanation:

4 0
3 years ago
What is the first operation to use to simplify the expression?<br> ​<br> ​ 3,500÷(34+8×2)−4
stira [4]

Answer: solve the expression by applying BODMAS, then multiply 8 by 2

Step-by-step explanation:

The first operation is to apply BODMAS, then solve the expression in the bracket

3,500÷(34+8×2)−4

3,500÷ (34 + 10) -4

3500 ÷ 44 - 4

3500 ÷ 40

87.5

I hope this helps.

3 0
3 years ago
IM 20 MIN AWAY FROM FAILING PLZZZ HELPPPP​
padilas [110]

Answer:

13 and 32

Step-by-step explanation:

let one number be x

Then the other number is x + 19 , then

x + x + 19 = 45

2x + 19 = 45 ( subtract 19 from both sides )

2x = 26 ( divide both sides by 2 )

x = 13

The 2 numbers are 13 and 13 + 19 = 32

5 0
3 years ago
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