All but the 3rd one have solution x = 4.4.
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a. x = 13×0.3 + 0.5 = 3.9 + 0.5 = 4.4
b. x = 3×1.2 + 0.8 = 3.6 + 0.8 = 4.4
c. x = 5×0.9 + 0.1 = 4.5 + 0.1 = 4.6
d. x = 8×0.4 + 1.2 = 3.2 + 1.2 = 4.4
Answer:
x = 4
Step-by-step explanation:
3 + x = 7 ( isolate x by subtracting 3 from both sides )
x = 7 - 3 = 4
DF is 2/3 the length of AC (10/15 = 2/3)
so DE would be 2/3 the length of AB
AB = 27
DE = 2/3 x 27 = 18
the answer is D
Multiply 5/7 by 2 to get 10/14.
Answer:
48 students.
Step-by-step explanation:
25% of total students = 12
suppose,
total students= x
so,
25% of x=12
(25/100)*x=12
25*x=(12*100)
x=1200/25
x=48
therefore,
x= total students= 48.
