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horrorfan [7]
3 years ago
13

Write an equation for a line that has slope of 4 and y- intercept of 7

Mathematics
1 answer:
grigory [225]3 years ago
6 0

Answer:

y = 4x + 7

Step-by-step explanation:

the equation for a line is y = mx+b

the y intercept is (0,7)

so in the equation x= 0 and y= 7 and the slope is m, thus m= 4

7= (4)(0)+b

now solve for b

7 = 0 +b

7= b

so the equation of the line would be without the x and y points

y = 4x + 7

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On your next turn in a board game there is a 60% chance that you will move ahead 4 spaces and a 40% chance that you will move ba
Vika [28.1K]
The expectation value is simply obtained by multiplying the probability of each outcome by each possible value. These are then summed for each outcome to obtain the expectation value. In the board game, if there is a 60% chance that you will move 4 spaces forward (+4) and a 40% chance that you will move back 2 spaces then expected value for number of spaces is (0.6 x 4) + (0.4 x -2) = 2.4 - 0.8 = 1.6 spaces. 
8 0
3 years ago
The number of freshman at George Washington high school is 60 greater than the number of sophomores. If there are 1250 students
solmaris [256]

Answer:

Hence total number freshman presented are 655.

The system is relative system as there is correlation between freshman and

sophomores<em>.</em><em>( as freshman are 60 more than the Sophomores)</em>

Step-by-step explanation:

Given:

1250 total students of sophomores and freshman.

To Find:

freshman count and its type of system used.

Solution:

We have that ,

consider x be the no.of freshman and y be the sophomores

So by given condition,

x+y=1250        ,..............................Equation(1)

And other one,

x=60+y

Use above value in equation (1) we get ,

60+y+y=1250

2y=1250-60

y=595

Now number of freshman ,

x+y=1250

x=1250-595

x=655

Hence total number freshman presented are 655.

The system represent the relative proportion system.The break even and total value should include all students in university .

Relative means in relationship with one another .

As there are 60 more number of freshman than the sophomores.

3 0
2 years ago
24 students brought her permission slips to attend the class field trip is this represent at 8:10 to the class how many students
OlgaM077 [116]

Answer:

30 students

Step-by-step explanation:

24 over 80 is equal to x over 100

cross multiply and you get

80x =240

divide 80 on both sides

you get 3

add an extra sero

4 0
3 years ago
Troy made 4 out of 7 jumps on his dirt bike. What percentage of jumps did he make?
Artist 52 [7]

Answer:

57.142858%

Step-by-step explanation:

I didn't know if you wanted the entire answer, so I just gave it anyway.

3 0
2 years ago
Write an expression for the amount of change you will get when you pay for a purchase p with a 20 dollar bill. Make a table to f
Mashutka [201]

change,c = 20 - p

so in Excel for example

put 20 in column a

put 11.59, 17.50 etc in column b

in column c put the equation '=20 - b1'

3 0
3 years ago
Read 2 more answers
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