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ella [17]
2 years ago
5

I really need help with this. I don’t understand it at all. It was due yesterday and I need to finish it. Please help.

Mathematics
1 answer:
iren2701 [21]2 years ago
7 0
I’m not sure if I’m right but I think you might have to divide the 78% by 7. There’s a website that I like to use as a calculator called Calculator Soup and it help with stuff like fractions, percentages, decimals, ect. Good luck on your homework :)
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6(2-3x) &gt; 12<br>.......​
Evgen [1.6K]

Answer:

6(2-3x) > 12  2x-3 (-4+3x)<72

Step-by-step explanation:

6(2-3x) > 12

x < 0

2x-3 (-4+3x)<72

2x-3=

6 0
3 years ago
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Adding cheese to a McDonald's Quarter Pounder increases the fat content from 21 g to 30 g. What percent does the fat content inc
solong [7]

Answer: 42.9%

Step-by-step explanation:

The percentage increase of the fat content will be calculated as:

= Fat increase / Previous fat content × 100

= (30 - 21) / 21 × 100.

= 9/21 × 100

= 42.9%

5 0
3 years ago
A townhouse in San Francisco was purchased for $80,000 in 1975. The appreciation of the building is modeled by the equation: A=8
jonny [76]

Answer:

In 1981 was the building worth double it’s value.

Step-by-step explanation:

Given : A townhouse in San Francisco was purchased for $80,000 in 1975. The appreciation of the building is modeled by the equation : A=80000(1.12)^t, where t represents time in years.

To find : In what year was the building worth double it’s value in 1975?

Solution :

The amount is $80,000.

The building worth double it’s value in 1975.

i.e. amount became A=2(80000).

Substitute in the model,

2(80000)=80000(1.12)^t

(1.12)^t=\frac{2(80000)}{80000}

(1.12)^t=2

Taking log both side,

t\log (1.12)=\log 2

t=\frac{\log 2}{\log (1.12)}

t=6.11

i.e. Approx in 6 years.

So, 1975+6=1981

Therefore, in 1981 was the building worth double it’s value.

4 0
4 years ago
For "downhill" lines, if the rise is negative, the run must be<br> ?
Naya [18.7K]

9514 1404 393

Answer:

  positive

Step-by-step explanation:

When considering the slope of a line, we usually choose "rise" and "run" so that "run" is positive, and "rise" measures the vertical change as one moves from left to right.

If we assume that "downhill" lines refers to lines that go from upper left to lower right (downhill to the right), then the rise is negative while the run is positive.

__

<em>Additional comment</em>

Here, we assume a line is considered to be "downhill" if it has negative slope. In the real world, "downhill" is the direction the ball rolls under the influence of gravity. That direction might be behind you, or to your left, instead of in front of you or to the right.

Definitions are important in math. "Downhill" is not a term that is widely used to describe lines, so we have to guess the intended meaning here.

3 0
3 years ago
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Question 8 of 20
Gnesinka [82]
C is the answer because the X factors can’t repeat
3 0
3 years ago
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