Answer:
b=12
Step-by-step explanation:
Perimeter=2*(l+b)
64=2*(20+b)
b=12
Answer:
Step-by-step explanation:
The correct question is
Susan works as a tutor for $10 and hour, and as a waitress for $11 an hour. This month, she worked a combined total of 90 hours at her two jobs. Let t be the number of hours Susan worked as a tutor this month. Write an expression for the combined total dollar amount she earned this month
Let
t -----> the number of hours that Susan work as a tutor
y ----> the number of hours that Susan work as a waitress
z ---> the combined total dollar amount she earned this month
we know that

-----> equation A
we know that
The combined total dollar amount she earned this month is equal to the number of hours that Susan work as a tutor multiplied by $10 plus the number of hours that Susan work as a waitress multiplied by $11
----> equation B
substitute equation A in equation B
therefore
The expression for the combined total dollar amount is $(990-t)
All you have to do is just multiply 6 in. and 20 in. because you are just finding the area of the rectangle not the triangle that is in the rectangle.
6in.*20in.=120in
Amswer120in
you can estimate 57.8 and 81 then to check you can do 57.8 divided by 81
I'm not sure about questions 7-10 tho, very sorry
Step-by-step explanation:
11) 5/7
12) 1/4
13) 7/10
14) 3/4
15) 2/9
16) 2/5
17) 13/30
18) 27/50
19) 5/16
20) 4/15
21) 1/24
22) 7/12
23) 1/20
24) 8/15
25) 11/45