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Aliun [14]
3 years ago
13

When the expression 3(n + 7) is evaluated for a given value of n, the result is 33. What is

Mathematics
2 answers:
trapecia [35]3 years ago
4 0

Answer:4

Step-by-step explanation:What +7=11 bause the () make a multiplication and 11x3=33

balu736 [363]3 years ago
3 0

Answer:

n=4

Step-by-step explanation:

3(n+7)=33

Lets mulitply..

3n+21=33

Then we need 3n alone...

To do this subract 21 from 33 and you get 12.

3n=12

Divide 3n by 3 and 12 by 3.

n=4

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X + 4 < 8 HELP please
labwork [276]

Answer:

x + 4 < 8

   - 4    -4

x < 4

Step-by-step explanation:

So, Basically anything less than 4 is a solution for this equation.

5 0
2 years ago
I buy a MP3 player for £40 in a sale where it was 20% off. What was the original price
natta225 [31]
20% off means you paid only 80% of the original price.
0.8x=40
x=40÷0.8=50
so the original price is 50
6 0
3 years ago
Read 2 more answers
What is the area of the rectangle
aliya0001 [1]
a^4+2a+8 because if you combine like terms that is what you get
3 0
3 years ago
Read 2 more answers
Sarah is 6 years older than Amy.
Umnica [9.8K]

Answer:

B.

Step-by-step explanation:

The problem has got to be addition.

The sentence "Sarah is 6 years older than Amy." does not include any hint of subtracting, or multiplying.

A hint of multiplying in a expression would be the word 'times', like "Brandon is 6 times the age of Emily" which eliminates D.

A hint of subtraction in an expression would be the word 'less', like "Brandon is 6 less the age of Emily." which eliminates A and C.

The word 'older' indicates addition, or adding, and if it would have been subtraction, the keyword would be 'younger' because you are subtracting their age, like 19 - 11. The same goes with B, but adding.

Finally, we now know that it is B because there is no other addition choice.

I hope this helped. Please correct me if I am wrong.

8 0
3 years ago
Evaluate the expression when a= 6 and c= -6. -a+9c​
Troyanec [42]

Answer:

=-a +9c

=-6+9×-6

=-6+(-54)

=-6-54

=-60

hope it helps you!!!

stay safe healthy and happy!!!!

7 0
3 years ago
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