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Nookie1986 [14]
3 years ago
13

The point-slope form of the equation of the line that passes through (1,-1) and has a slope of 4

Mathematics
1 answer:
Ainat [17]3 years ago
7 0

Answer:y = 4x - 5

Step-by-step explanation:

point slope form is in the form of y = mx + b. m is the slope so we plug thatin and have the equation y = 4x + b. since we also have a point on the line we can plug those into the equation too. -1 = 4 * 1 + b.

now we simplify that through algebra.

-1 = 4 + b

b= -5

sp we get b and we can say the equation is y = 4x -5

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Carla is going to draw a marble from the bag shown below, replace it, and then draw another marble. What is the probability that
Contact [7]

Answer:

7/80

Step-by-step explanation:

(3 green, 4 yellow, 5 blue, 8 pink) = 20 marbles

P ( green or yellow  ) = number of green or yellow / total

                = (3+4)/20  = 7/20

Replace  

so we have (3 green, 4 yellow, 5 blue, 8 pink) = 20 marbles

P (blue) = number of blue/ total

                = 5/20  = 1/4

P ( green or yellow, replace, blue) = 7/20 * 1/4 = 7/80          

8 0
3 years ago
Solution:
tester [92]

Answer:

a. 2.50(6) + X = 22.50

b. $25.00

Step-by-step explanation:

A.

a ride = $2.50

total spent = $22.50

2.50(6) + X = 22.50

15.00 + X = 22.50

X = 22.50 - 15.00

X = 7.50

entrance fee = $7.50

B.

10*2.50= $25.00

8 0
3 years ago
What is a reasonable estimate for the addition equation 1.5 + 0.9 = ________ when you round each addend to the nearest whole num
RUDIKE [14]
The answer is C
hope this helps
8 0
3 years ago
Read 2 more answers
One serving of granola provides 4% of the protein you need daily. You must get the remaining 48 grams from other sources. How ma
Inessa [10]
X=grams of protein you need daily.
Remember (4%=4/100=0.04).

x=4% of x + 48 g

therefore, we can suggest this equation:
x=0.04x+ 48
x-0.04x=48
0.96x=48
x=48/0.96
x=50

Answer: 50 grams of proteins you need daily.

Other method:
the remaning is equal to =100%-4%=96%

Therefore: 96% of x=48
Remember (96%=96/100=0.96)

we can suggest this equation too.
0.96x=48
x=48/0.96
x=50

Answer:50 grams of proteins you need daily.
3 0
3 years ago
You combine 12 ounces of mix with 36 ounces of water. What is a unit rate that describes your juice/
Nuetrik [128]

Answer:

Unit rate is 3 ounce of water per ounce of mix

Step-by-step explanation:

you combine 12 ounces of mix with 36 ounces of water.

12 ounces of mix for 36 ounces of water

For unit we need to find the ounces of water for 1 ounce of mix

12 ounces of mix for 36 ounces of water

so 1 ounces of mix for 36 / 12 = 3 ounces of water

3 ounces of water for 1 ounce of mix

Hence, 3 ounces of water per ounce of juice  

3 0
3 years ago
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