Answer:
2 hours
Step-by-step explanation:
Well you can make an equation for each
Lets “x” be hours
Jada, 28 +20x
Mai, 44 + 16x
So you can either make a table or a graph
I’m gonna make a table to make things easier
So lets do
jada: (0) 28 (1) 48 (2) 66 (3) 96
Mai: (0) 44 (1) 60 (2) 76 (3) 92
So we’re asked when is jada‘s service be cheaper
After 2 hours
jada <mai
whilst before
jada > mai
So 2 hours
Answer:
5
Step-by-step explanation:
→ Let x = √20 + √20 .....
x
→ Square both sides
x² = 20 + √20 +√20 + √20
→ Replace √20 +√20 + √20 with x
x² = 20 + x
→ Move everything to the left hand side
x² - 20 - x = 0
→ Factorise
( x + 4 ) ( x - 5 )
→ Solve
x = -4 , 5
→ Discard negative result
x = 5
Answer:
16.4 m²
Step-by-step explanation:
length = 4.6 m
breadth = 360 cm = 360 ÷ 100 = 3.6 m
Perimeter = 2*(l + b)
= 2 * ( 4.6 + 3.6)
= 2 * 8.2
= 16.4 m²
Answer:
S=6t
Step-by-step explanation:
6 dollars per hour