Answer:
30 not -30 x
Step-by-step explanation:
6x = 6(5) = 30
iI hope im right!!
A)
The slope-intercept form:
m - slope
b - y-intercept
The formula of a slope:
We have the points (2, 5.1) and (-1, -0.5). Substitute:
Therefore we have:
Put the coordinates of the point (-1, -0.5) ot the equation:
<em>multiply both sides by 2</em>
<em>add to both sides</em>
<em>divide both sides by 2</em>
Answer:
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B)
We have the points (-2, 3) and (3, -4).
Calculate the slope:
Therefore we have:
Put the coordinates of the point (-2, 3) to the equation of a line:
<em>subtract from both sides</em>
Answer:
30 miles. If one inch = 10 miles, then 3 inches= 30 miles.
Answer:
a. 4 and 120. b. 260 miles. c. 140 miles.
Step-by-step explanation:
d(t) = 400-70t.
a. (4,120) refers that with t=4 (when the driver has driven 4 hours), he is incorrect: 120 miles from his destination. d(4) = 400-70(4) = 400-280 = 120.
b. After driving 2 hours, that is in t=2, he is d(2)= 400-70(2) = 400-140 = 260 miles from his destination.
c. In his second hour of driving, that is in t=2 he is 260 miles from his destination, so he has driven 140 miles.
There are 20 sheep and 30 chickens.
If you multiply 20 by 4 you will get 80 (number of feet for 20 sheep). Next, multiply 30 by 2 to get 60 (number of feet per 30 chickens). If you add 60 and 80, you will get 140 feet and by adding 20 and 30 you get 50 heads. Thus meaning there are 20 sheep and 30 chickens.
I hope this helps!