Answer:
0.7 or 1 rounded to the whole number
Step-by-step explanation:
Add all of the numbers together (12+18+40=60)
And make your total as a fraction
There were 42 white cars and the total was 60 so the answer would be
or 0.7 simplified (42 ÷ 60)
Hope this helps
~R3V0
Answer:
0; 2; 6; 0 or -1
Step-by-step explanation:
If the question says "f(a)=" they are asking for the y value with the given x such as the two first ones.
If it's "f(x)=a than x=" they are asking you what x is when the (bolded) x is a given value.
Answer:
2/21
Step-by-step explanation:
We start out with a full tank. Once the trucks take from it, it is down to 1/3 of a tank. Therefore,
![\frac{3}{3} -\frac{1}{3} =\frac{2}{3}](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B3%7D%20-%5Cfrac%7B1%7D%7B3%7D%20%3D%5Cfrac%7B2%7D%7B3%7D)
So the trucks took 2/3 of the gas.
If there were 7 trucks and we need to know how much of that 2/3 was taken by each truck, we divide 2/3 by 7:
![\frac{\frac{2}{3} }{7}](https://tex.z-dn.net/?f=%5Cfrac%7B%5Cfrac%7B2%7D%7B3%7D%20%7D%7B7%7D)
When dividing fractions, we bring up the lower fraction and flip it and multiply:
![\frac{2}{3}*\frac{1}{7}=\frac{2}{21}](https://tex.z-dn.net/?f=%5Cfrac%7B2%7D%7B3%7D%2A%5Cfrac%7B1%7D%7B7%7D%3D%5Cfrac%7B2%7D%7B21%7D)
Answer:
see explanation
Step-by-step explanation:
(a)
Given
2k - 6k² + 4k³ ← factor out 2k from each term
= 2k(1 - 3k + 2k²)
To factor the quadratic
Consider the factors of the product of the constant term ( 1) and the coefficient of the k² term (+ 2) which sum to give the coefficient of the k- term (- 3)
The factors are - 1 and - 2
Use these factors to split the k- term
1 - k - 2k + 2k² ( factor the first/second and third/fourth terms )
1(1 - k) - 2k(1 - k) ← factor out (1 - k) from each term
= (1 - k)(1 - 2k)
1 - 3k + 2k² = (1 - k)(1 - 2k) and
2k - 6k² + 4k³ = 2k(1 - k)(1 - 2k)
(b)
Given
2ax - 4ay + 3bx - 6by ( factor the first/second and third/fourth terms )
= 2a(x - 2y) + 3b(x - 2y) ← factor out (x - 2y) from each term
= (x - 2y)(2a + 3b)