On monday marco practiced the piano for 7/10 hour. on tuesday he practiced for 1 1/4 hours each day write a question that involves adding or subtracting fractions

1. How many hours did he practice in the first two days?

1.39/20 hours

2. What is the difference between his hours of practice on Tuesday and Monday

11/20

Step-by-step explanation:

On monday marco practiced the piano for 7/10 hour. On Tuesday he practiced for 1 1/4 hours each day write a question that involves adding or subtracting fractions

A follow up question to this will be ,

How many hours did Marco practice in the first two days?

on monday=7/10

Tuesday=1 1/4

7/10+5/4

lcm=20

(14+25)/20=39/20 hours

2. What is the difference between his hours of practice on Tuesday and Monday

We have to subtract his hours of practice on monday from Tuesday, since tuesday is greater

5/4-7/10

(25-14)/20

11/20

if he has no friends he cant give them out to his friends

step-by-step explanation:

no friends = cant give anything out

it costs $20 to interview each person for a survey. find the cost to obtain a +- 3% margin of error.

step-by-step explanation:

copy and paste, put it in google