Answer:
m = 57t, where the units of measurement of 57 are mph and that of t is hr.
Step-by-step explanation:
Use the given info to find the speed of the train, which is a unit rate:
95 miles 95 mi
------------------ = ------------- = 0.95 mile/min
1 hr 40 min 100 min
Better yet, use hours, not minutes.
95 miles 95 mi
------------------ = ------------- = 57 mph
1 hr 40 min 1 2/3 hr
Then m(t) = (rate)(time) = (57 mph)t This corresponds to Answer D.
Answer:
x=26
Step-by-step explanation:
The picture will explain.
Answer
23.70
Proof
3Q+5+2-8-5=65 ~ Simplify
3Q-6=65 ~Cancel out the six
+6 +6 ~Add 6 to both sides since it is a 3Q=71 negative.
/3 /3 ~Cancel out the three.
Answer ~Divide both sides by 3
Q=23.66
Rounded Up
Q=23.70
Answer:
x = 131,25 m
Step-by-step explanation:
Manufacture the collar of an airbag helmet takes 1,5 m of fabric
Manufacturer is going to make 250 collars
Company only has 65 % of the needed fabric
Total quantity of fabric needed is:
250 * 1,5 = 375 m
If they have 65 % that means that they need 35 % of the total quantity
then, by rule of three
375 ⇒ 100
x ?? ⇒ 35
x = ( 375 * 35)/100
x = 131,25 m
Answer:
x= 7.2
Step-by-step explanation:
h sin 67 = 17
h = 17 / sin 67
x = h cos 67
x = 17 cos 67 / sin 67
x = 7.2