39 is 150% of what number plz show work

2 answers:

n200080 [17]3 years ago

8 0

39 is 26% of 150

100%/x%=150/39
(100/x)*x=(150/39)*x
100=3.84615384615*x
(3.84615384615) to get x
100/3.84615384615=x
26=x
x=26

slava [35]3 years ago

3 0

Okay 39 is 150% of what number? so like remember whenever you see percent you have to divide by 100
so let's start
First. we have 150% so let's divide 150%/100=1.5

Second. you will multiply 1.5*39= 26%

and you can also do it like easy way.

39/150=0.26
0.26/100=26

39 is 26% of 150

hope i help :p

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What is the equation of a line that passes through the point (2, 7) and is perpendicular to the line whose equation is y=x/4+5 ?

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Answer:

y = -4x+15

Step-by-step explanation:

y=x/4+5 may be presented as y = 1/4 x + 5, where a=1/4, b=5

swapping numerator and denominator and inserting an opposite sign in a=1/4, we have:

1/4 --------> 4/1 -------> -4/1 = -4

y = -4x+n

Point (2,7) means that x=2, y=7 substitute it to the equation y=-4x+n, calculate "n":

7=-4*2+n ------> 7=-8+n -------> 7+8 = n -------> 15=n