Answer:
585
Step-by-step explanation:
9 * 13 * 5 = 585
9 FLIGHTS OF STAIRS
13 STEPS IN EACH FLIGHT
5 DAYS
Hope this helps!
From V
Answer:
She will do 61 sit ups.
Step-by-step explanation:
The number of situps are increasing by 4 each day.
So at this rate...
Day 6: 37
Day 7: 41
Day 8: 45
Day 9: 49
Day 10: 53
Day 11: 57
Day 12: 61
The original number was: " 14 " .
____________________________________
a + 5 = b ;
b * 7 = 133 .
______________________________________________
What is: "a" ?
______________________________________________
133 / 7 = 19 = b ;
a + 5 = b = 19 ;
a + 5 = 19 ;
Subtract "5" from each side of the equation;
to isolate "a" on one side of the equation; and to solve for "a" ;
_______________________________________________
a + 5 − 5 = 19 − 5 ;
to get:
________________________________________________
a = 14 .
________________________________________________
Let us check our answer:
Start with "14" ;
Add "5" : "14 + 5 = 19 " .
______________________
then multiply by "7" : "19 * 7"
__________________________
and the result is: 133 ?
__________________________
19 * 7 = ? 133 ? Yes!
__________________________
Answer:
Q1:
150 pages is the answer
2 hours= 60+60minutes
So 120/40 =3
Answer= 50×3= 150.
Q2:
Using Work=men×days we get
Work=20×20
Work=400
Now, work is same and number of days are to be calculated
400=25×days
days= 16
400 = 25 x 16
so it will take 16 days
Step-by-step explanation:
Hope this helps!
Answer:
D
Step-by-step explanation:
f(x) - g(x) = -9x^2 - 7x + 12 - (3x^2 - 4x - 15) Remove the brackets
f(x) - g(x) = -9x^2 - 7x + 12 - 3x^2 + 4x + 15
f(x) - g(x) = -9x^2 - 3x^2 - 7x + 4x + 12 + 15
f(x) - g(x) = -12x^2- 3x + 27
Answer D
