Wats the answer I don't understand it

Mathematics

1 answer:

BartSMP [9]3 years ago

4 0

You have a graph with a y and a x axis. The x axis is horizontal, the y axis is vertical. first you find the x intercept, which is 4. So you go along the horizontal line until you come across the number 4. draw a point there. Now, you do the same with the y imtercept, accept now you will draw a point at three along the vertical line. draw a straight line connecting the two points. Now, in order to find the slope, you need to know this equation: RISE OVER RUN. What this means, is what it takes to get from one point to another. So, you go to your y intercept. from there, you count downwards, until you have reached the height of the point on the x axis. that is -3. So the rise is negative three, what's the run? Well, now you need to count how many units it takes to get to the other point. you need to go backwards 4 units. so, your rise over run = -3/-4. Since slope = rise/run, Slope = -3/-4, or -(3/4)

You might be interested in

Approximately 0.8 of middle school students have cell phones. Which of the following fractions describes how many middle school

lana [24]

Answer: E. 4/5

Step-by-step explanation: You have to put the decimal (0.8) over its place value. So in this case 0.8 turns into 8/10. Then you must simplify 8/10, by dividing the numerator (8) and the denominator (10) by the greatest common factor (2). Which gives you the answer 4/5.

8 0

3 years ago

Two mechanics worked on a car. The first mechanic worked for 10 hours, and the second mechanic worked for 5 hours. Together they

inysia [295]

You have two unknown rates, so we need to develop two equations to solve for these unknowns (based on the information given on the problem statement):

5x + 10y = 725
x + y = 100

By substitution, we get:

5x + 10(100 - x) = 725
5x + 1000 - 10x = 725
-5x = 725 - 1000
-5x = -275
x = -275/-5 = 55

100 - 55 = 45

Thus:
The mechanic who worked for 5 hours charged his time at $55/hr, and the mechanic who worked for 10 hours charged his time at $45/hr.

To verify, plug and chug the results back into the original equations:

5(55) + 10(45) = 725
275 + 450 = 725
725 = 725 [OK]

55 + 45 = 100 [OK]

4 0

3 years ago

Work out the volume of a cuboid 10cm by 3cm by 2cm?

Firlakuza [10]

10 x 3 x 2 = the volume
10 x 3 = 30
30 x 2 = 60 cm^3
it is cm^3 because all of the numbers you have are in cm

8 0

3 years ago

Solve the system: x + 5y = -15 -2x -10y = 30*

Ksju [112]

Answer:

x= -5/3 y-5

Step-by-step explanation: