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Harrizon [31]
2 years ago
12

Simplify the expression: 3(x+2) - 4 - 7x

Mathematics
1 answer:
belka [17]2 years ago
6 0

Answer:

use PEMDAS

Step-by-step explanation:

Parentheses

Exponents

Multiply

Divide

Add

Subtract.

if you do it in that exact order you should get your answer.

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Twenty percent of a number is 14. find the number
7nadin3 [17]
The answer is:   70  .
___________________________________________
Explanation:
_________________________________

(20/100) x = 14;  solve for "x".

(20/100) = 2/10 = 1/5 ; 

(1/5) x = 14

x/5 = 14 ; 

x = 14 * 5 ; 

x = 70 .  The answer is:  70 .
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5 0
3 years ago
Read 2 more answers
22
Lelu [443]

Answer:

13 and 7

Step-by-step explanation:

4 0
3 years ago
The 1,840 rock concert tickets sold were twice the amount of jazz concert tickets sold
Yuki888 [10]
So there where two times the amount of rock tickets sold than the jazz concert. If that is it then you divide the 1840 by 2 getting 920, dividing 1÷2 you get zero remainder 1, 18÷2= 9, 4÷2= 2, and 0÷2= 0. 920. Hope i helped :)
8 0
2 years ago
Read 2 more answers
Brandon earns a rebate each month on his meals and movie tickets. He earns $0.50 for each movie ticket and $2 for each meal. Las
AURORKA [14]

Let ticket be x and meal be y

So $0.50 for each movie ticket = 0.50x

$2 for each meal = 2y


He purchased 22 tickets, so x = 22

0.50 * 22 = $ 11


Now the total value is $25 (with both ticket and meal)

total = t

0.50x + 2y = t

you know x = 22 and t = 25

11 + 2y = 25


Part A)

2y = 25 -11

y = 14/2

y = 7

Number of meal is 7


Part B)

(don't know about part B)

0.50x + 2y = 25

0.50(22) + 2(7) = 25

11 + 14 = 25

25 = 25

7 0
2 years ago
Help on question 5 please
Yakvenalex [24]

Answer:

LM+MN=LN

3x-5+x+7=17

4x=17+5-7

4x=15

x=15/4=3.75

LM= 3x-5=3*3.75-5=6.25

Step-by-step explanation:

7 0
3 years ago
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