Answer:
r = -6
Step-by-step explanation:
6r + 7 = 13 + 7r
-6r both sides
7 = 13 + r
-7 both sides
r + 6 = 0
-6 both sides
r = -6
The length is 30 meters and the width is 12 meters.
Answer:
5y + 7
Step-by-step explanation:
Given:
Seeds planted in one garden = y vegetable seeds
Seeds planted in another garden = 4y + 7 vegetable seeds
To Find:
The number of seeds Val is going to plant = ?
Solution:
Let the total number of seeds that Val is going to plant be x.
Then
x = number of seeds planted in garden one + number of seeds planted in the other garden
Now substitute the values, we get
x = y + (4y+7)
x = 5y + 7
Answer:
The estimated expense would be about $1000.00 in which taxzation and inflation is unaccounted for.
Step-by-step explanation:
Answer:
Step-by-step explanation:
2800: 2 * 2 * 2 * 2 * 5 * 5 * 7
75: 3 * 5 * 5
168: 2 * 2* 2 * 3 * 7
It's not really multiplication. It's more division.
Try 2800 as a sample. What you are trying to do is break this down into primes. The first prime is 2
2800/2 = 1400
1400 / 2 = 700
700 / 2 = 350
350 / 2 = 175. That's the end of what the 2s can do.
175 / 5 = 35
35/ 5 = 7 7 is a prime. You are done. Now run up the ladder.
2800: 2 * 2 * 2 * 2 * 5 * 5 * 7
75 is not an even number. It has no 2s. Go to 3
75 / 3 = 25.
25 / 5 = 5
That's the end
75: 3 * 5 * 5
Your calculator can be of great help. The rule is keep factoring until you get a decimal remainder. Move on to the next prime. Stop when the last division gives you a prime.
