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 <em>n</em>. Then <em>n </em>is increased by 7, or simply put 7+ <em>n. </em>The sum is 21, so to find n you can use the equation 7 + n = 24 and solve for <em>n, </em>which is 14.
For problem two, the same strategy can be used. The number is <em>n, </em>multiplied by 9. So, 9 * <em>n</em> is equal to 27. Solve for n by isolating n, and the answer is 3.
Answer:
The temperature on the first day was 10 °F.
Step-by-step explanation:
Let's find the temperature in every single step starting from the fourth day:
Then, the temperature of the third day was 7 °F
On the third day:
Hence, the temperature on the second day was 17 °F.
Now, on the second day:
Therefore, the temperature on the first day was 10 °F.
I hope it helps you!
Answer:
yeah it's b I think cause the s.f doesn't match up
Step-by-step explanation:
let 6x-3y =3 be equation 1 and -2x +6y=14 be equation 2
take 2 common from eqn 2 let the optioned eq be equation number 3
and solve eq number 1 and 3
1 1 1 and 2 1 are the ages 11 11 11 11 and 12 in 10 years