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Vesnalui [34]
3 years ago
12

A line passes through (-1,5) and (1,3) what is the equation of the line

Mathematics
1 answer:
chubhunter [2.5K]3 years ago
4 0

Answer:

y = -x + 4

Step-by-step explanation:

(-1,5)...x1 = -1 and y1 = 5

(1,3)....x2 = 1 and y2 = 3

slope(m) = (y2 - y1) / (x2 - x1) = (3 - 5) / (1 - (-1) = -2 / (1 + 1) = -2/2 = -1

y = mx + b

slope(m) = -1

u can use either of ur points...I will use (1,3)...x = 1 and y = 3

now we sub and find b, the y int

3 = -1(1) + b

3 = -1 + b

3 + 1 = b

4 = b

ur equation is : y = -x + 4 <===

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Jada eats 2 scoops of ice cream in 5 minutes. Noah eats 3 scoops of ice cream in 5 minutes. How long does it take them to eat on
Scrat [10]

Answer:

\frac{5}{6} minutes

Step-by-step explanation:

Let's find unit rate of each.

<u>Jada</u>

2 scoop in 5 minutes

So,

1 scoop in 5/2 = 2.5 minutes

<u>Noah</u>

3 scoop in 5 minutes

So,

1 scoop in 5/3 = 1.25 minutes

These are the times. Time and rate are inverses of each other. So the rates of each is:

Jada = 1/2.5 = 0.4

Noah = 1/1.25 = 0.8

Working together, we add the rates and find the time:

(0.4+0.8)*t = 1

1.2t = 1

t = 1/1.2 = \frac{5}{6} minutes

So, they take \frac{5}{6} minutes to eat one scoop, working together

5 0
4 years ago
A serving of four home baked chocolate chip cookies weigh 50 grams and contains 12 grams of fat. What is the ratio in lowest ter
Vesna [10]

Answer:

Good luck

Step-by-step explanation:

<u>(50)</u>    half it

(<u>25</u>)  (<u>25</u>)    

(12)   (12)

(12.5) (12.5) (12.5) (12.5)

 (12)    (12)     (12)    (12)

0.5 + 0.5 + 0.5 + 0.5 = 2     (0.5= 1/2 or 0.5 or 0.50)

more examples: (2/4) (3/6) (4/8) (5/10)

So you are gonna have four holes and two twelves  

(12/12) (12/12) (12/12) (12/12)  (2/12)

6 0
3 years ago
angle C is a right angle and given the conditions c=2 B= 45 degrees, solve for the side lengths of the right triangle
worty [1.4K]
Since the triangle is 45,45,
90 arrangement. We can use the special triangle trick. Which gives us 2,2 and square root of 2 times 2
8 0
4 years ago
I will give u a five dollar gift card plz help!!!
juin [17]

Answer:

1. The measure of ∠WOV is 60°. You would use complementary angles that are adjacent (∠WOV, and ∠XOW)

2. The measure of ∠YOZ is 60°. You would use the vertical angles that are non-adjacent (∠WOV, and ∠YOZ). These two angles are congruent so they would have the same measure. These angles combined also create supplementary angles

3. Another way to find the measure of ∠YOZ would be to make/write an equation and solve for x. For example, (3x+30)°=60°. x would equal 10 because 10x3=30+30=60°

Step-by-step explanation:

1. Since a complementary angle would equal 90°, simply subtract 30° from 90° resulting in 60°.

2. Because vertical angles are congruent and (∠WOV, and ∠YOZ) are a pair of them, they equal the same as each other so they're both 60°.

3. You can make any equation with x included as long as it equals 60° mine was just an example you can make your own like 10x+10=60 or 4x+20=60. Also to create your equation you also need to use the angle fact of the vertical angles

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Answer:

17.76

Step-by-step explanation:

0.44 x 4 = 1.76

4 x 4 = 16

16+1.76=17.76

6 0
4 years ago
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