MATHEMATICS MIDDLE SCHOOL

If y = 2x2 – 4x, what is the value of y when x equals 5. A.10
B.30
C.80
D.480

need the answer asap

Answers

Answer 1

Answer:

Step-by-step explanation:

Putting x=5 in the above eq

y=2(5)^2-4(5)

y=2(25)-20

y=50-20

y=30

Answer 2

Answer:

Answer:i literally have no clue humy

Step-by-step explanation:

this is bull i got to get the f out of here

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Kendra is making a bracelet for herself and her friend she is also making a necklace. The necklace is 3 times the length of one bracelet. She can use at most 30 inches of string. What is the length of one bracelet? What is the length of one necklace?

Answers

You would probably need to divide. Inches
-------- = 30/3 = 10.

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Answers

Answer:

Step-by-step explanation:

There are n boxes

There are a pounds of fruit in each box

Multiply these together to find the total pounds of fruit in the truck

a*n

You are flying from Denver to Albuquerque. The distance is 349 miles between airports and takes 1 hour and 20 minutes to travel once the plane is in the air. It takes approximately 2 hours to check in to the airport and get seated. It takes 1 hour after seating for the plane to take off. It takes 1 hour once at the air port to disembark, and 1 hour to get a rental car and get back on the road. The whole trip can be driven by car in 6 hours. Which trip is faster: Car or plane?

Answers

Answer:

car trip is faster than plane trip

Step-by-step explanation:

The less time the trip takes the faster the trip is.

1. Plane: build a table with the given times for flying and sum up every stage of the flying trip:

Stage time

On air 1 h: 20'

Check in and get seated 2 h

To take off 1 h

Disembark 1 h

Get a rental car 1 h

______

Sum 6 h: 20'

2. Car.

Given total time: 6 h

3. Comparisson: 6 h < 6 h : 20' ⇒ car trip is faster than plane trip

Which one is it I can't decide

Answers

the answer is APPROVE

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Find the value of y.

Answers

Answer:

y= 9x+55

Step-by-step explanation:

if 9x+42=4y-13

9x+42+13=4y

y= 9x+55

What is the equation of the line that is parallel to the line 5X+2Y= 12 and passage to the point -2, 4

Answers

Step-by-step explanation:

To determine the equation of the line parallel to $5x + 2y = 12$ , we need to first determine the slope of the given line.

A line in slope-intercept form is represented by the following:

$y = mx + b$

where $m$ is the slope of the line and $b$ is the y-intercept.

Rearranging the given line will give us the slope of the line:

$5x + 2y = 12$

$2y = -5x + 12$

$y = -(5)/(2)x + 6$

From this, since we know the lines are parallel, if the slope of the given line is $-(5)/(2)$ , then the slope of the line we are constructing must also be $-(5)/(2)$ .

We can now start to construct the line with the same slope-intercept form:

$y = mx + b$

$y = -(5)/(2)x + b$

To determine the y-intercept, $b$ , we can plug in the point $(-2, 4)$ since we are told from the problem statement that this parallel line runs through it: