Answer:
5 1/10 meters
Step-by-step explanation:
18 4/5 can be changed to 18 8/10 so
18 8/10 - 13 7/10 = 5 1/10 meters
Andy had 20% fewer marbles than Henry. When Andy gave 80 marbles to Henry, the number of marbles he had left was half of what Henry had. How many marbles did Andy have in the beginning?
Answer:
I think it is 400
Not 100% sure
Step-by-step explanation:
*a=andy
h=henry
(h+80)x2=a-80
20%a=h
(20%a+80)*2=a-80
40%a+160=a-80
40%a+240=a
240=a-40%a
240=60%a
400=a
Tehira has read 110 pages of a 290-page book. She reads 20 pages each day. How many days will it take to finish?
A. 20 + 110p = 290
B. 20p + 290 = 110
C. 110 + 20p = 290
D. 290 = 110 - 20p
Pages left:-
[tex]\\ \sf\longmapsto 290-110=180[/tex]
She read everyday=20Total days
[tex]\\ \sf\longmapsto \dfrac{180}{20}=9[/tex]
If days be p the equation will be
[tex]\\ \sf\longmapsto 20p+110=290[/tex]
A bag of marbles contains 12 blue marbles, 5 red marbles, and 13 green marbles. if one is selected at random, what is the probability that the selected marble is blue?
A. 0
B. 2/5
C. 13/30
D. 5/6
E. 1
Answer:
2/5
Step-by-step explanation:
Total marbles=12+13+5=30
P(that the selected marble is blue) = 12/30 = 6/15 = 2/5
Help with this two pls
Answer:
I'm not sure about 20 but here's 21.
Part A is 274.622.
Part B is 282.018
Step-by-step explanation:
Part A show work:
278.320
- 3.698
________
274.622
Part B show work:
278.320
+ 3.698
________
282.018