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3 years ago

Please answer the two questions.

Mathematics

2 answers:

Anarel [89]3 years ago

6 0

Answer:

1. n= 14

2. n=3

Step-by-step explanation:

For the first problem, let's break down the equation. The number being thought about can be represented by n. Then n is increased by 7, or simply put 7+ n. The sum is 21, so to find n you can use the equation 7 + n = 24 and solve for n, which is 14.

For problem two, the same strategy can be used. The number is n, multiplied by 9. So, 9 * n is equal to 27. Solve for n by isolating n, and the answer is 3.

nika2105 [10]3 years ago

4 0

Answer:

1. n=14

2. n=3

Step-by-step explanation:

What you could do is if it says the sum of whatever and it gives you a number in the equation you can set it up.

#1. So for the first one the sum is (21) and a number it gives you is (7). It says increased and it says sum so that means you add.

7+n=21 *question set up in equation*

-7 -7 *subtract 7 from both sides to isolate n and get you're answer**

n=14

#2. For the 2nd one it says multiplied and product so you will be using multiplication. It gives you the product (27) and a number in the equation (9). To set it up:

9xn=27 *question set up in equation*

9/9 =27/9 *divide 9 by both sides to get answer. You divide bc its the opposite of multiplication**

n=3

For the inverses

If it is addition, subtract

If it is subtraction, add

If it is multiplication, divide

If it is division, multiply

For context clues to set up equation

Sum--> addition

Difference--> subtraction

Quotient--> division

Product--> multiplication

Hope it helps!

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