15 questions
25/100=1/4
1/4 = x/20
1*20=20
20/4 = 5
20-5= 15
Answer:
Step-by-step explanation:
let the speed of one plane=x mph
speed of other plane=x+120 mph
x×1.5+(x+120)×1.5=1620
(x+x+120)×1.5=1620
(2x+120)×1.5=1620
3x+180=1620
3x=1620-180
3x=1440
x=480
speed of one plane=480 mph
speed of second plane=480+120=600 mph
Given sequence: 
.
We need to find first four terms of the sequence.
We already given first term -3.
Let us find second term 
.
Plugging n=2.
Now taking n=3.
.
Now, n=4.
.
We got terms -3, 2, 7 and 12.
<h3>Therefore, correct option is B) –3, 2, 7, 12.</h3>
Answer:
x = 5
Step-by-step explanation:
5x - 2x + 10 = 25
- 10 -10
5x - 2x = 15
3x = 15
divide 3 on both sides of the equal sign
x = 5
to check
5(5) - 2(5) + 10 = 25
25 - 10 + 10 = 25
25 = 25
I believe the answer is the second option. Hope i helped.
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