Step-by-step explanation:
The three ways by which we can find the 75% of 96 -
1 ) Simply multiply and extract 75% of 96 as follows -
= 75/100 * 96
= 72
2) We can write 75% as 3/4 of the total so if we multiply 3/4 with 96 we
will get 75% of 96
= 3/4 * 96
= 72
3) We can also get 75% of 96 by taking out the 1/4 rd of 96 and subtracting
from 96 we get 75% of 96
= 96 - (1/4 * 96)
= 96 - 24
= 72
Ugh I know the answer but like it wont let me take a pic of how to do it and the answer ugh sorry I will answer it as soon as I can
Answer:
The last graph
Step-by-step explanation:
This is because when there is a greater than sign, the line on the graph is dotted and the shaded area is facing upwards. I try to remember that when there is a greater than sign or a greater than or equal to sign, the shaded area faces up towards the sky.
Hope this helps. Please inform me if my answer is wrong.
Answer:
y = mx
Step-by-step explanation:
if there is no '+ b' y-intercept is 0
15 mi/h= 15mi/60 min= 1/4 (mi/min)
x is original speed (mi/min)
t is original time
x*t =260
(x+1/4)=5x/4 is new speed
t-20 - new time
(x+1/4)(t-20)=260
xt = (x+1/4)(t-20)
xt=xt + t/4 - 20x - 5
t/4=20x+5
t=80x +20
We can substitute t=80x +20 into equation x*t =260
x*(80x+20)=260
80x²+20x-260=0
4x²+x-13=0
D=b² - 4ac = 1+4*4*13= 209
x=(-1+/-√209)/2*4
x=1.68 mi/min
1.68mi/min * 60 min/1h≈100 mi/h
Check
260/100=2.6h time with old speed
260/(115)=2.26 h time with new speed
2.6-2.26 = 0.34 h difference between old and new time
0.34h*60min/1h≈20 min difference between old and new time in minutes
