Answer: 0.3 cm per hour
Step-by-step explanation:
got it off of quizizzes
Answer:
x=32/5
Step-by-step explanation:
x/8=4/5
x=(4/5)×8
x=32/5
Answer:
Steve's lunch is $8.00
Step-by-step explanation:
First you have to make a formula for this almost.
s= Steve's lunch
y= your lunch
s= y-3
s+y-19
then plug in s
y-3+y=19
Then simplify 2y-3=19
Add the three to both sides 2y=22
Divide both sides by 2 y=11
Last plug y into one of your formulas
s=Y-3
s=11-3
s=8
BE SURE TO CHECK YOUR ANSWER S+Y=19 11+8=19 :)
Answer:
x = 3
Step-by-step explanation:
Given y varies directly as x², then the equation relating them is
y = kx² ← k is the constant of variation
To find k use the condition y = 27 when x = 3 , then
27 = k × 3² = 9k ( divide both sides by 9 )
3 = k
y = 3x² ← equation of variation
When y = 81, then
81 = 3x² ( divide both sides by 3 )
27 = x² ( take the square root of both sides )
x = = = 3
Answer:
y=2x^2+1
Step-by-step explanation:
a quadratic equation has a x^2 term