(2x-20) + 86 what is the the value of x

Answers

Answer 1

Answer: When (2x-20)＋86＝0
2x-20＝-86
2x＝-46
x＝-23

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I need help cuz i dont understand it
Please help me with this.

-1/4 divided by 23/24= (A a fraction)

Answers

-6/23

when dividing by a fraction you flip it and multiply by the reciprocal, so you get -1/4 times 24/23

-1*24
4*23

which becomes -6/23

2.45 as a mixed number

Answers

2.45 = 2 +0.45 = 2 + 45/100 = 2 + 9/20 = $2 (9)/(20)$

Cassandra drove 370.5 Miles in 6.5 hrs. How many miles per hour did she drive? (:

Answers

I 370.5 divided by 6.5 and got 57 mph.

Answer:

57 mph

Step-by-step explanation:

Divide your miles by your hours to get your speed.

divide 370.5 by 6.5 to get 57

I hoped this helped a little bit.

450milligrams= grams?

Answers

0.45 grams because you move the decimal over to the left three times since mili is 0.001 and so you get 0.45 grams.

0.45 because since its milli you move the decimal 3 times to the left

Determine if the sentence is true. Select all that apply.2+5=19 - 12
4^5 + 1^5 = 2-1-1
5-4-3-2-1 = 30 - 34 -1
2(x+ 8)=2x - 8
2(x+5) -4x= 3(x-2)-5x+16

Answers

1st and 5th are true.

Please answer ASAP! An explanation is a MUST REQUIREMENT in order to receive points and the Brainliest answer. Thank you.

Answers

hmm

tr some
m=3
n=4
p=5
q=6
A=m/q=3/6=1/2=0.5
B=n/p=4/5=0.8

test
first,
A+B, andB is irrational
hmm, B is not irrational and the result is not irrational

2nd
0.5+0.8=1.3, it is rational

3rd the fraction is wrong
m/q times n/p=(mn)/(qp) so this is wrong

4th, fraction is also wrong (but it is true that produce of 2 rationals makes rational)

pick 2nd from top

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