Answer:
1.5 hours
Step-by-step explanation:
we know that
1) Martha can paint a room in 2 hours
so
Martha can paint the 100% of the room in 2 hours
Find out what percentage of the room she can paint in an hour
using proportion
2) Jamie can paint a room in 6 hours
Jaimie can paint the 100% of the room in 6 hours
3) In one hour Martha and Jamie can paint
Find out how long will it take them to paint the 100% room together
a.
Let x = # of hours
Let y = cost to rent skates
3 + 2x = y
b.
(Plug in 8 for x, because it is the # of hours)
3 + 2(8) = y
(PEMDAS or order of operations)
3 + 16 = y
19 = y
It costs $19 to rent skates for 8 hours.
Using tally marks
Missing information;
Number of pets are;
3,0,1,4,4,1,2,0,2,2,0,2,0,1,3,1,2,1,1,3
Find;
Ungroups frequency distribution table
Computation:
<u>Number of pets Tally Frequency</u>
0 IIII 4
1 IIIII I 6
2 IIIII 5
3 III 3
4 II 2
D) 250
A) 552
552 ÷ 2 = 276
552 ÷ 5 = 110.4
B) 255
255 ÷ 2 = 127.5
255 ÷ 5 = 51
C) 525
525 ÷ 2 = 262.5
525 ÷ 5 = 105
250 ÷ 2 = 125
250 ÷ 5 = 50
D is the only answer where both 2 and 5 divide evenly, so it is your answer.
Hope this helps :)