Answer:
Step-by-step explanation:
513=171x3
171=57x3
57=19x3
19 and 3 are prime numbers
Answer:
3627
Step-by-step explanation:
assuming it is 13*(-32.48-14.02)*6
Answer:
Let x and y be the two numbers. Then
yx=57 and x−y=20
Cross multiplying the proportion
5x=7y or y=75x
So, x−y=20
x−75x=20⇒77x−5x=72x=20
⇒x=2140=70
y=75x=75×70=50
So smaller number is 50.
Check :yx=5070=57 and 70−50=20
Answer:
2 minutes
Step-by-step explanation:
You can make an equation to model the question.
y=60 initial starting value,
y=(750-720)x, plug in 60 for y,
60=30x, x = 2 minutes
Answer:
A
Step-by-step explanation:
