Which expressions are equivalent to 3x + 2(x − 1) − 4? A.) 3x + 2x - 2 - 4 B.) 5x - 6 C.) 3(x - 4) D.) 3(x + 2) - 6 E.) 6(x - 1)
Answers
Answer:
A and B.
Step-by-step explanation:
The original expression is 3x+2(x-1)-4, so let's simplify it to obtain an equivalent expression:
First we destroy the parenthesis applying distributive property:
3x+2x-2-4, so option A is correct.
Then, add the similar terms (3x can be added with 2x and -2 can be added with -4):
5x-6, so option B is also correct.
C is not correct because 3(x-4) = 3x-12 ≠ 5x-6.
D is not correct because 3(x + 2) - 6 = 3x+6-6 = 3x ≠ 5x-6.
E is not correct because 6(x - 1) = 6x-6 ≠ 5x-6.
Then, correct options are A and B.
Execute the command multiplication bracket
3x + 2* (x - 1) - 4 =
3x + 2* x + 2* (-1 ) - 4 =
3x + 2x - 2 - 4 =
We reduce similar words
3x + 2x - 2 - 4 =
5x - 6
Answer B
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Please help!!!!!!!!!!!!!!!!!!!!
Answers
Answer:5
Step-by-step explanation:
we know two negatives divided by each other make a positive so -10/-2 is the equivalent of 10/2= 5
Answers
The sales tax for the item is $2.25.
How to solve for the sales tax
To calculate the sales tax amount, you can multiply the listed price by the sales tax rate. Given that the sales tax rate is 3% and the listed price is $75:
Sales tax amount = Listed price * Sales tax rate
Sales tax amount = $75 * 0.03
Sales tax amount = $2.25
The sales tax for the item is $2.25.
Read more on sales tax here brainly.com/question/30109497
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Answer:
Net Price: $ 75.00
+ Sales Tax (3%): $ 2.25
Total Price: $ 77.25
Answers
First I would divide 217 by 4, because we need to find 217th digit in 4 digit repeating decimal:
The 217th number after the decimal point in this repeating decimal will be 3
Answers
Answer:
4x + 12 ≤ -8
Step-by-step explanation:
- 4, x blocks = 4x
- 12, 1 positive blocks = 12
- 8, -1 blocks = -8
- Inequality sign: ≤
- Put them together: 4x + 12 ≤ -8
I hope this helps!
pieces. How many items will Sandra and Teo have for sale in total? Write
a mathematical expression, then solve your expression to find the
answer.
Answers
Answer:
Total is 96
Step-by-step explanation:
Answer:
Step-by-step explanation:
12 x 4= 48
8 x 6= 32
48 +32= 80
Hope this helps
B. (30+6)/6+3*2^2
C.40-[5*(3+1)+8]
D.[(3+5)*2-5]*3
Answers
A. 15+(8*3-6)
inside the parentheses, we multiply first
15+(24-6)
now simplify the rest of the parentheses
15+18
33
so answer "A'' equals 33
B. (30+6)/6+3*2^2
we simplify the inside of the parentheses
36/6+3*2^2
we simplify the exponent
36/6+3*4
6+12
18
So NO, answer "B" is not correct
C. 40-[5*(3+1)+8]
all the way on the inside of the parentheses,
40-[5*4+8]
multiplying comes before adding, so
40-[20+8]
inside the brackets,
40-28
12
So answer "C" is also incorrect
D. [(3+5)*2-5]*3
inside the parentheses
[8*2-5]*3
multiplying before subtracting
[16-5]*3
11*3
33
So the only answers that equal 33 are answer "A" and answer "D" equal 33