Yes, because 20 is easy to multiple by 8. it ends in 0 and anything being multiplied by 2 is easy to find. 32 times 5 isn't exactly harder to figure out because its times 5 but its just not as easy to do right off the too of your head quickly.
Answer:
42
Step-by-step explanation:
Test worth = 50
To obtain a grade percent = 84%
Score to obtain = x
Using the expression :
84% of test worth = x
84/100 * 50 = x
0.84 * 50 = x
42 = x
Score to obtain = 42
Answer:
4.8 hours
Step-by-step explanation:
6 hours = 360 minutes (6x60)
360/5 = 72 (minutes per person worked)
72/2= 36 (person working at half productivity)
36x 8= 288 (total minutes of 8 people working at half productivity)
288/60= 4.8 (cover minutes back to hours)
Answer:
one angle is 90° .
Angle x is45 because 180-90=90
90/2=45°
Answer:
I think it's 79
Step-by-step explanation:
.... Hi don't be mad if you get wrong
