What is 8(x+12)=2(5x+9)

Answers

Answer 1

Answer: 8(x+12)=2(5x+9)
8x+96=10x+18
2x+18=96
2x=78
x=39

Answer 2

Answer: 8(x+12)=8x+96
2(5x+9)= 10x+18
8x+96=10x+18
-18 -18
---------------------
8x+78= 10x
- 8x -8x
-----------------
78=2x
78÷2=36

Related Questions

Randall is cutting a submarine sandwich into smaller pieces he has 4 ft of Saturday he wants to divide into 1/3 foot sandwiches how many sandwiches will he have after he cuts the sandwich use tiles to help you solve
~~~40 POINTS~~~Please answer this question!!
I really need help please
Need help don’t understand it
carmine buys 8 plates for $1 each. he also buys 4 bowl. each bowl cost twice as much as each plate. the store is having a sale that gives carmine $3 off the bowls.which numerical expression shows how much he spent?

Anne has 24 more cards than Devi. Anne finds that 3/5 of Devi's cards are equal to 1/2 of her cards. How many cards does Anne have?

Answers

LET ANNE HAS X NUMBER OF CARDS
LET DEVI HAS Y NUMBER OF CARDS
X-Y= 24 ------EQ 1
3/5Y=1/2X
6Y=5X (cross multiplying)-------EQ 2
FROM EQ 1 WE GET
X=24+Y
substituting the value of x in eq 2, we get
6y=5(24+y)
6y =120+5y
y= 120

NOW, PUTTING THE VALUE OF Y IN EQ 1
X-120=24
X=24+120
X=144
THEREFORE, ANNE HAS 144 CARDS

a=Anne's cards
D= Devi's cards
d+24=a
3d/5=a/2
6d/5=a
6d/5=d+24
6d/5-d=24
6d-5d=120
d=120
a=144

What percent of 75 is 6?
Pls help me with this in cross product rule

Answers

It’s 8% because I did my sercret trick and got the answer

Answer: 8%

Step-by-step explanation:

100 as the bottom fraction always and on top is the percent. You multiply the numbers you have and divide to get the unknown

What is 225/23*488-236b=4428

Answers

$\sf (225)/(23) (488)-236b = 4428 \n \n (109800)/(23) + - 236b = 4428 \n \n -236b + (109800)/(23) = 4428 \n \n -236+ (109800)/(23) - (109800)/(23) = 4428 - (109800)/(23) \n \n -236b = (-7956)/(23) \n \n \boxed{{{\huge{{\bold{b = (1989)/(1357) }}}}}}$

A jar contains five blue marbles and three red marbles. Suppose you choose a marble at random, and do not replace it. Then you choose a second marble. Find the probability of the following event.Both of the selected marbles are red.

Answers

Answer:

The probability that both of the selected marbles are red is $(3)/(28)$

Step-by-step explanation:

Given

Number of red marbles = 3

Number of blue marbles = 5

Required

Probability of selecting two red marbles (without replacement).

First, we need to get the total number of marbles

Total = Red Marbles + Blue Marbles

Total = 3 + 5

Total = 8

Probability is calculated by: Number of required outcome divided by number of possible outcome.

Since there are 3 red marbles out of a total of 8 marbles;

The probability that the first marble you selected is red is 3/8

From the question, you didn't return the marble back to the container.

This means that, there are 2 red marbles and a total of 7 marbles left in the container.

So, the probability that the next marble selected is red is 2/7

Let P(R and R) represent the probability of selecting two red marbles.

This is calculated by multiplying the probability of picking the first red marble and the second red marble.

Hence,

P(R and R) = $(3)/(8) * (2)/(7)$

P(R and R) = $(6)/(56)$ --- Reduce to lowest term

P(R and R) = $(3)/(28)$

Hence, the probability that both of the selected marbles are red is $(3)/(28)$

At the start of the week, you could run for 8 minutes. By the end of the week, you could run for 15 minutes. Which proportion could you use to find the percent increase in your running time?7/15=n/100

8/7=n/100

7/8=n/100

8/15=n/100

Answers

The formula for finding percent increase is:
(Final - Initial)/Final * 100 = n
Divide both sides by 100 and you get:
(final-initial)/Final = n/100
Plug in all the numbers, and you get:
(15-8)/15 = n/100, or
7/15 = n/100

Hope this helped!! :D

The answer to this is 7/8=n/100

Which number has the greatest value? HELP PLEASE A. 0.28
B. 08.2
C. 02.8
D. 2.80

Answers

I believe it's B. 08.2

B, because 08.2=8.2

08.2>2.80=02.8>0.28

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