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N76 [4]
3 years ago
14

Please I need help in all of these!

Mathematics
2 answers:
blondinia [14]3 years ago
6 0
For 15 I think it’s B
s344n2d4d5 [400]3 years ago
4 0
I also think it is B for number 15
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What is the equation of a line that is parallel to the line 2x + 5y = 10 and passes through the point (-5, 1)? Check all
Lilit [14]

Answer:

B, E

Step-by-step explanation:

The equation of that line in slope intercept form is y = -2/5x + 2

The slope of a line parallel to that line will be the same as its slope, so -2/5.

To find the y-intercept of a line that passes through the point (-5, 1) with that slope, you will have to plug in the x and y values of that point into what you know of the equation of the line.

y = -2/5x + b

1 = -2/5(-5) + b

1 = 2 + b

-1 = b

From this, you can construct an equation.

y = -2/5x - 1

However, this is not an answer choice.  

It cannot be A because this line does not have a slope of -1.

2x + 5y = 15

5y = -2x - 5

y = -2/5x - 1

It can be B because this line is the same as the equation we came up with.

It cannot be C because this line does not have a slope of -1 or a y-intercept of -3.

2x + 5y = -15

5y = -2x - 15

y = -2/5x - 3

It cannot be D because this line does not have a y-intercept of -3.

y - 1 = -2/5(x + 5)

y - 1 = -2/5x - 2

y = -2/5x - 1

It can be E because this equation matches the one we came up with.

5 0
3 years ago
Read 2 more answers
In a group of 60 students, 18 students take Algebra I, 20 students take Algebra II, and 10 students take both subjects. How many
frosja888 [35]
Your answer is B. 12. 

12 kids are unaccounted for after you subtract the kids that take A1, then A2, the both subjects. 
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3 years ago
A car dealership paid $9,000 for a car. The sticker price is $10,395 for a customer to buy the car. a. What’s the markup in doll
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Answer:

1) To determine how much the change of $9,000 to $10,395, we must subtract 9,000 from 10,395;

10,395 - 9,000 = $1,395 is the change in <u>price</u> (an increase).

Formula to find percentage of change;

Change in price/original amount x 100% (100/100)

Replace those values:

1,935 (change in price/increase)       100

_____                      x                        _____ =<u> </u><u>%0.215</u>

9,000(original amount)                      100

7 0
2 years ago
How do you write 0.252525 as a fraction
stiks02 [169]

Answer:

Step-by-step explanation:

I assume this is a repeating decimal where the sequence continues infinitely.

Let x=.252525... then

100x-x=25.25...-0.25...

99x=25

x=25/99

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3 years ago
The dunk family own a property in the shape of an L. The property is to be shared between four children so that each receives th
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The long part will be divided into 3 and the rest of the bottom bit will make up the last section. if measurements are given, find area of property and divide by 4.
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