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Anna007 [38]
3 years ago
11

John needs a computer for his summer class. The computer costs 385 but since he is still in school, he gets a 30% discount. What

is the total amount he will spend on his computer?
Mathematics
1 answer:
vova2212 [387]3 years ago
7 0

Answer:

269.50, you could search it up

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20 POINTSSS HELPPP!! Christa is comparing prices for the same brand and model of a security camera. Which store offers the lowes
salantis [7]
Store B has the lowest price 
8 0
3 years ago
Read 2 more answers
Suppose that the weight (in pounds) of an airplane is a linear function of the amount of fuel (in gallons) in its tank. When car
MArishka [77]

Answer:

2316 pounds

Step-by-step explanation:

If this is linear, we can create 2 coordinate points for the gallons of fuel and weight of the plane.  If the plane weighs 2030 pounds with 20 gallons of fuel, the coordinate point is (20, 2030).  If the plane weights 2251 with 54 gallons of fuel, the coordinate point is (54, 2251).  We can use those 2 points to find the slope of the line:

m=\frac{2251-2030}{54-20}=6.5

This means that for every gallon of gas, the plane's weight increases by 6.5 pounds.  Now that we have the slope, we can plug that in, along with one of the points we created, to find the model for this situation.  Use the point-slope form:

y - 2030 = 6.5(x - 20) and

y - 2030 = 6.5x - 130 so

y = 6.5x + 1900

This means that if there was NO gas at all in the plane, x = 0, the plane weighs 1900 pounds.  Now we can use that model to find the weight of the plane, y, when x = 64 gallons:

y = 6.5(64) + 1900 so

y = 2316 pounds.

5 0
3 years ago
Solve for y.
Tamiku [17]

Answer: Y=75

Step-by-step explanation:

23+y-19=79

23+y=19+79

23+y=98

Y=98-23

3 0
4 years ago
Read 2 more answers
Write the point-slope form of the line that passes through (5, 5) and is PARALLEL to a line with a slope of 1/4. Include all of
lesya692 [45]
Parallel lines will have the same slope

y - y1 = m(x - 1)
slope(m) = 1/4
(5,5)...x1 = 5 and y1 = 5
now we sub
y - 5 = 1/4(x - 5) <==== ur parallel line
==================
perpendiculr lines will have a negative reciprocal slope. To find the negative reciprocal, u flip the number and change the sign. So the negative reciprocal of 1/4 is -4....see how I flipped 1/4 and made it 4/1...then changed the sign making it -4/1 or just -4. That will be ur slope of the perpendicular line.

y - y1 = m(x - x1)
slope(m) = -4
(5,5)...x1 = 5 and y1 = 5
now we sub
y - 5 = -4(x - 5) <=== ur perpendicular line
4 0
3 years ago
Please help me.. I'm very confused about this
Elis [28]

Answer:

C

Step-by-step explanation:

1:draw a very simple Cartesian plane for the graph

2:label the quadrants 1-4 from top right round to bottom right as 4

3:then apply x>0 (1,2) is top right and y<0 is bottom right (-1,-2)

5 0
3 years ago
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