2 years ago

Find the percentage change between two numbers if the original number was 150 and now is 330.

Mathematics

2 answers:

bearhunter [10]2 years ago

8 0

Answer:

0.45

Step-by-step explanation:

Lunna [17]2 years ago

6 0

Answer:

120

Step-by-step explanation:

150->330=180

so...

x/100 (or x%) *150=180

multiply and then multiply 100 on both sides...

meaning: 150x=18000

divide:

x=120

the answer is 120

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What is the equation of a line that passes through the point (8, 1) and is perpendicular to the line whose equation is y=−23x+5

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Answer:

$y-1=\frac{1}{23} (x-8)$

Step-by-step explanation:

We can write the equation of a line in 3 different forms including slope intercept, point-slope, and standard depending on the information we have. We have a point (8,1) and a slope from the equation y=-23x+5. We will chose point-slope since we have a point and slope.

Point slope: $y-y_1=m(x-x_1)$

$m\neq -23$ in our new equation because it us perpendicular to it. This means we will need to change it into its negative reciprocal which is $m=\frac{1}{23}$ .