Answer:
243
Step-by-step explanation:
speed = distance/time
81 = x/3
81 * 3
= 243
Answer:
243 miles
Step-by-step explanation:
To find the distance you would multiply the time by the speed.
81 times 3 is 243
1
s)
Can someone help me learn this. I dot understand how and im behind. Will give brainliest!
Answer:
s = 2
Step-by-step explanation:
6s - 4 = 8
Additive inverse of (-4) is 4. So, add 4 to both the sides
6s - 4 + 4 = 8 + 4
6s = 12
Now divide both the sides by 6.
s = 2
Answer:
5
Step-by-step explanation:
just know its 5
Martin’s Gift Card
Days
2 4 5 7
Amount remaining 24.10 18.20 15.25 9.35
A.
y – 9.35 = −2.95(x – 7)
B.
y – 18.20 = 2.95(x + 4)
C.
y + 15.25 = −2.95(x + 5)
D.
y + 24.10 = 2.95(x – 2)
We want to see which linear equation represents the amount remaining on the gift card. We will see that the correct option is A:
y – 9.35 = −2.95(x – 7)
A linear equation in the point-slope form is written as:
y - y₁ = a*(x - x₁)
Where a is the slope of the line and (x₁, y₁) is a point on the line.
If we know two points on the line, (x₁, y₁) and (x₂, y₂) then we can write the slope as:
Here we can use the two first points:
(2, 24.10)
(4, 18.20)
Then the slope is:
Then the equation is something like:
y - y₁ = -2.95*(x - x₁)
Now, from the given options the only one where (x₁, y₁) is a point on the line is the first option, where:
x₁ = 7
y₁ = 9.35
So the correct option is A:
y – 9.35 = −2.95*(x – 7)
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