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xz_007 [3.2K]
2 years ago
9

Is 4x + 2 + 8x equivalent to the expression 2 (6x + 1)?

Mathematics
2 answers:
maw [93]2 years ago
7 0

Yes the expressions are equivalent

Korolek [52]2 years ago
6 0
Yes.

4x + 2 + 8x = 12x + 2 = 2(6x + 1)
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Ratio And Proportion
Allushta [10]

Answer:

11200 for 7 engines for a total of 80 hours

Step-by-step explanation:

You have 8 engines burning 12000 .for 10 hours.

Divide 10 hours into 12000=1200 PER hour.

1200 ÷8 engines = 140 per hour per engine.

140 × # of hours (12)=1680 for 12 hours per engine.

# of engines × 1680 for 12 hour/per engine

5×1680 = 8400 of fuel for 12 hours/5 engine

Then you have 2 that runs 10 hours

2 × 140 per hour per engine =280 × 10 =2800 for 2 engines for 10 hours

8400. + 2800= 11200 of fuel for 6 engines

4 0
3 years ago
A coin is flipped until 3 heads in succession occur. list only those elements of the sample space that require 6 or less tosses.
Mashutka [201]

we are given

A coin is flipped until 3 heads in succession occur

so, firstly, we will find sample space

S={HHH , THHH , HTHHH, TTHHH , TTTHHH , HTTHHH , THTHHH , HHTHHHH, ......}

now, we are given that

list only those elements of the sample space that require 6 or less tosses

so, we can see that sample space

S={HHH , THHH , HTHHH, TTHHH , TTTHHH , HTTHHH , THTHHH , HHTHHHH, ......}

There are infinite such possibilities

so, there are infinite number of elements in space

and we know that

discrete sample space will always have finite elements

but we have infinite number of sample space elements here

so, this is not discrete sample space...........Answer

6 0
3 years ago
Use the properties of operations to determine if the expressions are equivalent. 6 + y: 1/2(12 + y)​
Zarrin [17]

Answer:

The expressions are not equivalent

Step-by-step explanation:

This is due to the fact that when you plug in the same value for y they do not equal the same.

3 0
2 years ago
-3(-4n + 30) = -30 need help​
DIA [1.3K]

First we will do -3 times everything in the parenthesis.

-3 times -4n = 12n

-3 times 30 = -90

SO,

12n - 90 = -30

       +90    +90

12n = 60

divide 12 on both sides;

n = 5

This is your answer,

IF THIS HELPED, PLS GIVE ME BRAINLIEST!

6 0
2 years ago
I need help with these both
erica [24]
Yeah you were right, those are the correct answers.
8 0
2 years ago
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