Answer:
The correct option is;
Marissa can talk for at most 192 minutes
Step-by-step explanation:
The amount for which Marissa buys the prepaid cell phone card = $25
The charge for a phone call using the recharge card = $0.13 per minute
The greatest number of minutes Marissa can call is given by the the following inequality;
t < $25/($0.13/minute)
$25/($0.13/minute) = (192 + 4/13) minutes
Therefore;
t < (192 + 4/13) minutes
The cost of 192 minutes = 192 minutes × $0.13 per minute = $24.96
The amount of credit left on the $25 recharge = $25 - $24.96 = $0.04
The minimum charge for calls = $0.13
The amount remaining after 192 minutes $0.04 is less than the amount to make a call $0.13
Therefore;
t ≤ 192 minutes
Therefore, Marissa can talk for at most 192 minutes.
Answer:
1/5=10/50
2/9=20/90
Step-by-step explanation:
1/5 is just a simpler way of saying 10/50 same as 2/9
Answer:
144cm²
Step-by-step explanation:
Area of square A Aa = La²
Area of square B Ab= Lb²
If the length of each side of square B is 4cm greater than the length of each side of square A, then;
Lb = La + 4 ... 1
Also if the area of square B is 70cm² greater than the area of square A, then;
Ab = Aa + 70
Since Aa = La² and Ab = Lb²
Lb² = La² + 70 ...2
Substitute 1 into 2;
(La+4)² = La²+70
Expand
La²+8La+16 = La²+80
8La+16 = 80
8La = 80 - 16
8La = 64
La = 64/8
La = 8cm
Since Lb = La + 4
Lb = 8 + 4
Lb = 12cm
Area of square B = Lb²
Area of square B = 12²
Area of square B = 144cm²
She is standing in front of a wall which is 10 feet away when she kicks the ball and it hits the wall and comes back to her by the virtue of Newton's third Law of motion! She kicks the ball into the air vertically above her and the ball rises to 10 feet and then comes back to her by the virtue of gravity!
Answer:
42km/h
Step-by-step explanation:
70km=100 minutes
7km= 10min
42km=60min
42km/h
