What is Q35 please x
1 answer:
Answer:.
A total of 5 expressions can be simplified to 4n + 8.
Step-by-step explanation:
1. 2n + 2(n + 4)
= 2n + 2n + 2.4
= 4n + 8
2.
= 4n + 4 + 4
= 4n + 8
3. 2³ + n³ + n
Since. 2³ = 8 we have:
8 + n³ + n
≠ 4n + 8
4. 5(n - 1) - (n - 13)
= 5n - 5 - n + 13
= 4n + 8
5. 4n + 8
= 4n + 8
6.
= 10.2(2 + n)/5
= 2.2(2 + n)
= 4(2 + n)
= 8 + 4n
= 4n + 8
7. (2n + 1)² - 4n²
= 4n² + 2.2n . 1 + 1² - 4n²
= 4n² + 4n + 1 - 4n²
= 4n + 1
Hence, the answer.
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Answer:
- 96
- 6.9
- 25%
- 8%
- 79
- 33.8
Step-by-step explanation:
Here is the complete question: Find each number. Round to the nearest tenth if necessary.
- 80% of 120.
- 115% of 6
- What percent of 128 is 32?
- 3 is what percent of 36?
- 23.7 is 30% of what number?
- 71/2% of what is 12?
1) 80% of 120
=
= 96
∴ 80% of 120= 96
2)
=
∴ = 6.9
3) What percent of 128 is 32?
=
=
4) 3 is what percent of 36?
=
=
5) 23.7 is 30% of what number?
Let the number be "x".
⇒
Cross multiplying
⇒
∴ x= 79.
6) 71/2% of what is 12?
Lets assume the required number be "x".
⇒
cross multiplying both side.
⇒x= 33.8
∴ 71/2% of 33.8 is 12