Answer:
x=-19
Step-by-step explanation:
<span>x^2+15=8x
</span><span>x^2-8x=-15
x^2 - 2 (x)(4) =-15
adding 16 on both sides
</span>x^2 - 2 (x)(4) +16=-15+16
x^2 - 2 (x)(4) + 4^2= 1
(x-4)^2=1
taking square root on bothsides x-4 = +-1
so x-4=1 or x-4=-1
x-5 or x=3
Answer:

Step-by-step explanation:
Equation: y=mx+b
we know the slope (m) and so we can write
(-2/3)x+b=y
we need to solve for b
to do this plug in 6 for x and -4 for y
(-2/3)(6)+b= -4
-4+b= -4
b=0
therefore the final answer is just
(-2/3)x
Answer:
30 = 5n
n = 6
Step-by-step explanation:
A box of strawberry cost = $5
A person has = $30
Number of boxes a person can buy = n
Equation to calculate the most number of boxes a person can buy with $30
Amount with the person = cost of a strawberry × number of strawberry
30 = 5 * n
30 = 5n
n = 30/5
n = 6