MATHEMATICS MIDDLE SCHOOL

2(3x – 5) = 8
What is X?

Answers

Answer 1
Answer: multiply 2 x (3x) and 2 x (-5) =8
6x - 10 =8
      +10   +10
cancel the 10
6x + 18
divide both sides by 6
6x/6 = 18/6
x =3

Related Questions

Jason has two bags with 6 tiles each. The tiles in each bag are shown below:1 2 3 4 5 6 Without looking, Jason draws a tile from the first bag and then a tile from the second bag. What is the probability of Jason drawing the tile numbered 5 from the first bag and an odd tile from the second bag?
5.3 independent practice
50 r 3r 20 I need this by tomorrow morning plz!!!!!
Help me plzzzz...... .
20 points for each question What is the simplified value of the expression below?12.4*(-6.3)–78.12–1.971.97 78.12Tamir buys tickets to two concerts this season. One has a face value of $32.50, and one has a face value of $26.50. He uses a coupon and gets both tickets at 1/4  off. If he pays with a $50 bill, how much change should Tamir receive?$5.75$7.63$30.13$44.25

How do you solve 5(x+4) = 3x + 23

Answers

5(x+4) = 3x + 23 

 5x+20=3x+23 

5x-3x=23-20 

2x=3 

x=3/2
5 (X + 4) = 3X + 23

5X + 20 = 3X + 23

5X - 3X = 23 - 20

2X = 3

X = 3/2

X = 1 1/2

Please help on question 17 with step by step instructions
Thanks in advance xx

Answers

Let x = Initial Price

If we increase x by 5%, we are adding 0.05x

Therefore, the new price = x + 0.05x = 1.05x

If the ticket has increased by £2.30, £2.30 is 5% of the initial price, or 0.05x

0.05x = 2.30

x = 2.30/0.05

x = 46

Therefore, the price of the ticket before the increase was £46

You can also check this backwards by doing 46*0.05 = 2.30

4y-11=21 what is the value of y

Answers

4y-11=21
Add 11 to 21.
4y=32
Divide both sides by 4.
y=8
My steps may be really weird, but please don't ridicule me. 

1. 11+21
2. 32 divides 4
3. 8
So, y is 8.

4 Melvin plans to attend a comic bookconvention in March. The expenses, including
entry fee, hotel, food, and lodging, will be a
minimum of $550. Melvin currently has $295
saved. He earns $8.50 per hour at his job
as a technician. How many hours will Melvin
need to work in order to have enough money
to attend the convention?
x 30
(G x 30
CH X S 30
x 30

Answers

The answer would be F) because the question says that the total cost will be a minimum of $550. So the hours he works will have to be equal to or more than 550, just in case.
Hope I helped :))

I am working percentages increases and decreases with problems like From 24 pencils to 30 pencils (increase  question) or From 20 miles to 11 miles ( decrease question) How can I check my answers of percentages to make sure they work? Please help!

Answers

24 pencils = 100%
30 pencils = ___%
30 - 24 = 6, so:

24 / 6 = 4 (it means that there are 4 sixes in 100%)
100% / 4 = 25%

Check: 25% * 24 = 25/100 * 24 = 1/4 * 24 = 6
30 - 6 = 24 (correct)
Answer: There was an increase by 25%

20 miles = 100%
11 miles = ___%
1 mile = 100% / 20 = 5%, so:

5 * 11 = 55 [percent]
100% - 55% = 45%

Check: 45% * 20 = 45/100 * 20 = 45/10 * 2 = 9/2 * 2 = 9
20 - 9 = 11 (correct)
Abswer: There was a decrease by 45%

jess puts 1 2/3 tomatoes in each salad. Dott ate 1 1/2 salads yesterday and 2 7/10 salads today. How many more tomatoes did she eat today? Explain how you solved this problem.

Answers



1 and 2/3 per salad
1 and 1/2 salad eaten then 2 and 7/10 salad eaten
subtract salads eaten
1 and 1/2=1 and 5/10
2 and 7/10-1 and 5/10=1and 2/10=1 and 1/5
convert to improper fraction
6/5=salads eaten

so 1 and 2/3 to imporper is 5/3

so multiply amount per salad by salad eaten
5/3 times 6/5=30/15=2
answer is 2 more tomatoes
First of all... Who would name their kid dott??!?!!

Decimal time:
1 2/3= 1.666, forever
2 7/10= 2.7
1 1/2= 1.5

1.6666 forever times 1.5 = the amount of tomatoes she ate yesterday. = 2.5

1.666 forever times 2.7 = the amount of tomatoes she ate today. = 4.5

4.5 - 2.5 = 2

She ate 2 more tomatoes today than she did yesterday.
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Which is not an improper fraction equal to eight
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Eight friends share 2 pizzas equally. How much pizza does each friend get