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IRISSAK [1]
3 years ago
8

Which equation represents the line that passes through the points (-3,7) (4,10)

Mathematics
1 answer:
krok68 [10]3 years ago
3 0

Answer:

Step-by-step explanation:

slope = m = (10-7)/4+3) = 3/7

y=3x/7+b

plug in either point to solve for b=y intercept

10=(3/7)/4+b =12/7+b

b =10-12/7 = 58/7

y=3x/7 + 58/7  or

eliminate the fractions

multiply by 7 to get

7y=3x + 58

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Convert 12 and a half of 30
tamaranim1 [39]

Answer:

375

Step-by-step explanation:

12½[30] → 25⁄2[30]

Multiply 25 by 30 [750] then divide by 2 to get 375.

I am joyous to assist you anytime.

7 0
4 years ago
Andy joins a social networking site. After day three, he has 25 friends; after day eight, he has 40 friends. Write the equation
Allisa [31]

Answer:

Point slope intercept form: The equation for line is given by; y-y_1=m(x-x_1) ......[1] ; where m is the slope and a point (x_1, y_1) on the line.

Let x represents the number of days and y represents the number of friends.

As per the statement:  After day three, he has 25 friends; after day eight, he has 40 friends.

⇒ We have two points i.e,

(3, 25) and (8, 40)

First calculate slope(m);

m = \frac{y_2-y_1}{x_2-x_1}

Substitute the given values we get;

m = \frac{40-25}{8-3}=\frac{15}{5} = 3

now, substitute the given values of m=3 and a point (3, 25) in [1] we get;

y-25=3(x-3)

Using distributive property; a \cdot(b+c) = a\cdot b + a\cdot c

y-25 = 3x - 9

Add 25 on both sides, we get;

y-25+25 = 3x - 9+25

Simplify:

y =3x + 16

if  x = 18 days, then;

y = 3(18) + 16 = 54+16 = 70

Therefore, he will have on day 18, if he continues to add the same number of friends each day is, 70 friends.

7 0
3 years ago
the area of maddies square garden is 450 square feet. she has purchased 92 feet of fence. is this the right amount of fence for
Keith_Richards [23]

Answer:

Not the right amount.

Step-by-step explanation:

A square has 4 sides so 92/4 to divide it evenly is 23.

23 times 23 for the are is 529 which is not equal to 450.

3 0
3 years ago
What is the area of the garden, Explain your answer
SashulF [63]
The area of the garden would be 192 square feet. When you divide the area of his backyard by the side known, you find the missing side. The missing side is 24, which means that is the other leg of the triangle. By using the area formula for a right triangle you find the answer.
3 0
3 years ago
Read 2 more answers
If you own 2.08% of stock out of 48 million outstanding stock pool then what percentage will you own for 16 million outstanding
AveGali [126]

Answer:

6.24%

Step-by-step explanation:

The first step is to determine how much stock is owned when there are 48 million outstanding stock

\frac{2.08}{100}x 48 million = 0.9984 million

So, i own 0.9984 million shares.

If there are 16 million outstanding stock

(0.9984 / 16 million ) x 100 = 6.24%

8 0
3 years ago
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