<em>20x</em>+20-4<em>-15x</em>=96-32
(next:subtract 96-32)
<em>20x</em>+20-4<em>-15x</em>=64
(next: then combine like terms)
<em>5x</em>+16=64
(next: subtract 16 from 64)
<em>5x</em>=48
(next: divide 48/5)
<em>x=9.6</em>
For this case, the first thing we must do is define variables.
We have then:
x: number of hours
y: Amount of scarf that Sara knits
We then have the following equation that models the problem:
The number of hours during the 8 days is given by:
Substituting the value of x in the ada equation we have:
Answer:
she will knitted by the end of the trip about 52528mm of scarf
Answer:
option D
Step-by-step explanation:
f(x) = 7x- 3
g(x) = x2 - 4x- 8
we have
(f+g)(x)= 7x- 3 +x2 - 4x- 8
(f+g)(x)= x2+ 3x- 11
Z = z u need numbers or something if z is supposed to be a number
Answer:
If c is greater than 0, than b can be all real numbers that do not equal 0.
Step-by-step explanation:
When looking at the value of c, we know that two factors of c always add up to create b. However, if c is positive, it gives us no indication of the size or sign of the factors and therefore b. Take the example of c = 100. In this instance, b could be -20 or 20. This is because factors of 100 can be -10/-10 or 10/10. We can do this with increasingly larger number, which allows us to assume that b can be both infinitely high or infinitely low.
