Step-by-step explanation:
25 questions, 2 points each.
that means there were 25×2 = 50 points in total.
Gideon got 42 out of the 50.
100% = 50
1% = 100%/100 = 50/100 = 0.5
42 is how many % ? as many as 1% (0.5) fits into 42.
so,
42/0.5 = 42×2 = 84%
he scored 84%.
218 Students
109 Adults
Let x = adults
Let 2x = students
Add together and set equal to the total number.
Answer:
7 1/2 miles
Step-by-step explanation:
1 1/2 miles in every 1/5 hour
x miles in 1 hour
x equals 1 times 1 1/2 divided by 1/5
x equals 5 times 1 1/2
x equals 7 1/2
<span>(9t-4)(-9t-4)
using the FOIL :
9t * -9t = -81 t^2
9t * -4 = -36 t
-4 * -9t = 36 t
-4 * -4 = 16
-----------------------add up and simplify
</span><span />
Answer:
7 cds
Step-by-step explanation:
8.49*x +5=70 => 8.49*x=65 => x= 65/8.49 => x= 7 approximately
