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alexandr1967 [171]
3 years ago
5

How many units? What is e value of a?

Mathematics
1 answer:
kkurt [141]3 years ago
6 0

Answer:

a = 14

Step-by-step explanation:

3a = a + 28 ➡ 2a = 28 ➡ a = 14

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Find the slope, Y-intercept, and equation (make sure there is no decimals if there is a decimal make it into a fraction)!
adelina 88 [10]

Answer:

Slope is 5/3

y-intercept = -3

y = 5/3x - 3

Step-by-step explanation:

To find the slope, take to coordinates and use the equation below

m = \frac{\text{rise}}{\text{run}} = \frac{y_2 - y_1}{x_2 - x_1}

7-2 = 5

6-3= 3

Now you have your slope which is 5/3

Then take the slope and input it into point slope form to get your y-intercept.

y-y₁=m(x-x₁)

y-2 = 5/3(x-3)

y-2=5/3x-5

add two to both sides to get Y by itself

y = 5/3x - 3

now you have your y-intercept, which is -3

Then check your answer by inputing two different coordinates for X and Y

7 = 5/3(6)-3

7=7

12= 5/3(9)-3

12=12

6 0
3 years ago
I need help on this question
solong [7]

Answer:

Diego: y = 11 + 5 x

Emilia: y = 60 - 2 x

Step-by-step explanation:

y for saving and x for weeks

Diego: y = 11 + 5 x

Emilia: y = 60 - 2 x

7 0
3 years ago
Traveling at an average rateaverage rate of between 40 and 50 miles per hour for 4 to 7 hours select the best estimate for the d
zmey [24]

Answer:

Step-by-step explanation:

40 X 4 = 7 X50

160miles = 350miles

8 0
3 years ago
after spending 7/9 of a three hours examination, a student left the exams hall. How many minutes has he to complete the duration
Montano1993 [528]
40 mins left! total time= 60 mins x 3 hours =180 mins. 180 divided by 9 is 20. 20 times 7 is 140. 180-140 equals 40. yay!
6 0
3 years ago
Idk how to solve this ????????
lozanna [386]

Answer:

-21

Step-by-step explanation:

If you look at the graph when x=-15, y=-21

4 0
3 years ago
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