1hr 30 mins= 60mins+30mins=90mins
140$=90mins
In one minute, they make 140/90=14/9
in 9 hours=9*60mins=540mins
540*14/9=840
therefore,they make 840$ in 9 hours

5 0

3 years ago

Be sure to round to 4 sig fig for your answer.

Tresset [83]

Answer:

1) 1.203

2) 1.291

Step-by-step explanation:

1 mL = 0.001 L

1202.57120 mL = <u>1.202</u>57120 L

round to 4 sig fig = 1.203

1g = 10dg

0.1290743 g = <u>1.290</u>743 dg

round to 4 sig fig = 1.291

4 0

3 years ago

three people alice , ben , calvin, are conversing at a taxi stand since taxis are the only ride service in this town. although t

elena-s [515]

Answer:

Alice will have to pay $13.33

Ben will have to pay $23.33

Kelvin will have to pay $43.33

Step-by-step explanation:

Given that

Alice destination is 20 miles away

Ben destination is 30 miles away

Calvin destination is 40 miles away.

For a mile, taxi costs 2 dollars.

To find:

How much each person has to pay if they share the same taxi to their respective destinations?

Solution:

For the first 20 miles, the taxi will be shared by all 3 of them.

Charges for 20 miles = 20 $\times$ 2 = $40

This $40 will be shared among all 3.

Each will pay = $\frac{40}{3} = \$13.33$

Charges for Alice = $13.33

Charges for Ben = $13.33

Charges for Calvin = $13.33

For the next 10 miles, the taxi will be shared by Ben and Calvin.

Charges for 10 miles = 10 $\times$ 2 = $20

This $20 will be shared between Ben and Calvin.

Each will pay = $\frac{20}{2} = \$10$

Charges for Alice = $13.33

Charges for Ben = $13.33 + 10 = $23.33

Charges for Calvin = $13.33 + 10 = $23.33

For the next 10 miles, Calvin travels alone.

Charges for 10 miles = 10 $\times$ 2 = $20

This $20 will be paid by Calvin alone.

Charges for Alice = $13.33

Charges for Ben = $23.33

Charges for Calvin = $23.33 + 20 = $43.33

3 0

4 years ago