Answer:
15/min
Step-by-step explanation:
total no. after 9 min is 144
at 0 min is 9
increase = 135
rate= 135/9
15/min answer hope you like
Answer:
boys = 705
girls = 783
Step-by-step explanation:
We are to find the number of boys and girls in the school
the answer can be determined using simultaneous equation
x = boys
y = girls
y - x = 78 equation 1
y + x = 1488 equation 2
subtract equation 1 from 2
2x = 1410
x = 1410/2 = 705
Substitute for x in equation 1
y - 705 = 78
y = 705 + 78 = 783
20+2N=52
now subtract 20 from each side, to get 2N alone
2N=32
now divide each side by 2
N=16
Answer:
40^14 over 4^5 then divide 40 by 4 and 14-5 which would be 10^9
Step-by-step explanation:
i think, im not positive but you multiply the whole numbers and add the exponents then you can simplify the numerator and denominator. but you dont divide the numerator exponets by the 5, you just sutract. if you want i can explain it a lil better in the comments
Answer:
D. 70°
Step-by-step explanation:
the sum of the unknown angle and 110° is 180 °
so, let the unknown angle be x
x+110 = 180
x = 180-110
x = 70°
