Answer:
he bought it for 570.8
Step-by-step explanation:
Answer:
Working together, they will finish the job in 1 hour, 25 minutes, and 42.6 seconds.
Step-by-step explanation:
Given that Ted can change an advertisement on a billboard in 5 hours, while Marie can do the same job in 2 hours, to determine how long it would take them if they worked together the following calculation must be performed:
Ted 1/5 in 1 hour
Marie 1/2 in 1 hour
1/5 + 1/2 = X
5X + 2X = 10
7X = 10
X = 10/7
X = 1 3/7
60/7 x 3 = 25.71
60 x 0.71 = 42.6
So, working together, they will finish the job in 1 hour, 25 minutes, and 42.6 seconds.
Answer:
Step-by-step explanation:
13. -2(4)= -8 14. 6(-5)= -30 15. 3(-5)(2)= -30
16. -12(4)= -48 17. -4(2)^2= -64 18. (-5)^2= -25
19. -5(-3)(4)= =60 20. 13(-5)(2)= -130. 21. 3(-3)= -9
Hope this helps!
Answer:
B
Let total number of students be x.
Ratio of boys to girls= 5:7
=5x:7x
According to question,
5x =95
Or x=95/5
x=19
Now,
Number of girls =7x
=7*19
=133
