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mina [271]
2 years ago
15

Josiah weighed 210 pounds. After six months of changing his diet and adding exercise to his daily routine, he weighs 180 pounds.

What is the percent change in Josiah's weight? Round to the nearest percent.
A) 14% increase
B) 14% decrease
C) 17% increase
D) 17% decrease
Mathematics
1 answer:
expeople1 [14]2 years ago
8 0

Answer:   D .) 17% decrease

Step-by-step explanation:

I don't know how to anwser this but i had the same question and when I anwsered d i got it correct.

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How many 3/8ths are in 3 3/4ths?
Vitek1552 [10]

Answer:

10

Step-by-step explanation:

First make the fractions the same value:

3 and 3/4s is equal to

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10  3/8s go into 30/8s

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The cost of 4 kilograms of cheese is 50 dollars. which equation shows this in function notation?
Xelga [282]
$50 corresponds to 4 kg That means there must be a number that when you multiply by 4 you get 50. Let that number be k. k is the price of cheese per kg. 1 kg: y = k * 1 2 kg: y = k * 2
8 0
2 years ago
The slope of a line is 5/9 and the slope of another line is -975. The two lines<br> are
Bond [772]

Answer:

the third option - they are perpendicular to each other.

Step-by-step explanation:

for a perpendicular slope we need to exchange the x and y values (remember, a slope is the ratio of y/x) and flip the sign.

and that is exactly what happened here.

3 0
2 years ago
Write an equation of the line that passes through the given point and is perpendicular to the graph of the given equation. Pleas
Anna71 [15]

Answer:

y = \frac{1}{3}x + 4

Step-by-step explanation:

First, to figure out the equation of a line you must find the slope then plug in the coordinates.

In order to find the slope of the equation, you know that it is perpendicular to the equation y = -3x + 7.

Perpendicular slopes are basically reciprocals with opposite signs; you flip the number and give it the opposite symbol.

For example, the perpendicular slope of 2 would -1/2, because flipping the fraction 2/1 is 1/2 and the opposite sign of + would be -.

Therefore, the perpendicular slope of -3 would be 1/3, be 3/1 flipped upside down is 1/3 and the opposite sign of - is +.

Then you plug in the slope into the equation of a line along with the coordinate.

A line is y = mx + b

Since you found the slope, m = 1/3

They also give you the coordinate (3,5), meaning when x = 3, the y =5.

You plug everything into the equation to solve for b:

5 = (1/3)(3) + b

b = 5 - (1/3 * 3) = 5 - 1 = 4

Since you have values for m and b, the equation can now be constructed as

y = 1/3x + 4

6 0
2 years ago
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