Answer:
43.33 km
Step-by-step explanation:
<u>Step 1: Find the amount of km Sarah can run in 1 hour</u>
26/3
<u>Step 2: Find the amount of km Sarah ran in 5 hours</u>
26/3 * 5
130/3
43.33
Answer: 43.33 km
Answer:
x = 12
, y = -3
Step-by-step explanation:
Solve the following system:
{2 x + 7 y = 3 | (equation 1)
x = -4 y | (equation 2)
Express the system in standard form:
{2 x + 7 y = 3 | (equation 1)
x + 4 y = 0 | (equation 2)
Subtract 1/2 × (equation 1) from equation 2:
{2 x + 7 y = 3 | (equation 1)
0 x+y/2 = -3/2 | (equation 2)
Multiply equation 2 by 2:
{2 x + 7 y = 3 | (equation 1)
0 x+y = -3 | (equation 2)
Subtract 7 × (equation 2) from equation 1:
{2 x+0 y = 24 | (equation 1)
0 x+y = -3 | (equation 2)
Divide equation 1 by 2:
{x+0 y = 12 | (equation 1)
0 x+y = -3 | (equation 2)
Collect results:
Answer: {x = 12
, y = -3
Answer:
1 1/3
Step-by-step explanation:
or 1.33333333333333333333333333333333333333333333
Answer:
Step-by-step explanation:
The slope-intercept form of the equation of a line:
m - slope
b - y-intercept → (0, b)
The point-slope form of the equation of a line:
m - slope
(x₁, y₁) - point
We have the equation of a line:
and the point (0, 2) → b = 2.
Substitute:
The answer is B.
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