Answer:
x = 2x
x + 20 = 2x + 20
And,
1.5(x + 20) = 2x + 20
x = 20 i.e. Alexis
And, Jelani be 40
Step-by-step explanation:
Given that
Jelani has twice as much as Alexis
And, both can added $20
Jelani will have 1.5 times as much on his pass on Alexis
We need to write an equation also the amount does Jelani and Alexis have
So,
Let us assume the alexis be x
And, Jelani be 2x
Now
x = 2x
x + 20 = 2x + 20
And,
1.5(x + 20) = 2x + 20
1.5x + 30 = 2x + 20
-0.5x = -10
x = 20 i.e. Alexis
And, Jelani be 40
Answer:
15%
Step-by-step explanation:
To find the percent increase, use the equation:
percent of increase=<u>amount of increase</u>
original amount
The amount of increase is 92-80 = 12. The original amount of 80; this gives us
12/80 = 0.15 = 15%
Step-by-step explanation:
isolate x:
subtract 13 from both sides to get -2x < -4
divide both sides by -2 to get x > 2
(the sign changes direction because we divided by a negative)
because it's non inclusive (no equal to) we use an open circle arrow to point right starting from 2
Answer:
Between 9 and 20rows; at least of 9 rows
Step-by-step explanation:
Since there are eight seats in a row and in the auditorium we have about 70 to 150seats, the number of rows of seats that can fit into the auditorium will be between 70/8 and 150/8 rows which is equivalent to 8.75 and 19.75 rows in the auditorium. This is approximately 9 to 20 rows.
This shows that about 9 to 20 rows can fit into the auditorium.
The least possible number of rows means the lowest number of rows we can have in the auditorium which is 9rows according to the calculation above