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Nostrana [21]
3 years ago
6

Jada walks at a speed of 3 miles per hour. Elena walks at a speed of 2.8 miles per hour. If they both begin walking along a walk

ing trail at the same time, how much farther will Jada walk after 3 hours? Explain your reasoning.
Mathematics
1 answer:
soldi70 [24.7K]3 years ago
7 0

Answer:

Jada will be .6 miles ahead of Elena

Step-by-step explanation:

3 miles per hour times 3 (for the 3 hours) gives you nine miles.

2.8 miles per hour time 3 ( for the 3 hours) give you 8.4 miles.

Subtract 9 by 8.4 to get .6 miles.

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The cost, in dollars, of adding s ingredients is f(s) = 6.75 +0.50s. Which<br> statement is correct?
Ganezh [65]
Is there more to this question or no?
4 0
3 years ago
The Garcia family is driving from San Diego, California, to Bar Harbor, Maine. In 5 days, they have traveled 2,045 miles. At thi
zysi [14]

Answer: 8

Step-by-step explanation: Well you first do 2045 divided by 5 which is 409 and then you have to do 3272 divided by 409 and you would get 8. I hope this helps!

5 0
3 years ago
You fit a trendline of y = 2x 1 to your data. what would the residual be for a data point measured as y = 3.5 for an x value of
nata0808 [166]

For a data point measured as y = 3.5 for an x value of x = 1.2, the residual would be 0.1

For given question,

we have been given an equation 2x + 1 that represents an equation for a trendline to the data.

General formula with residual is y = 2x + 1 + r, where r is a residual.

We need to find the residual for a data point measured as y = 3.5 for an x value of x = 1.2

We substitute given values of x and y in the residual equation

y = 2x + 1 + r

For y = 3.5 and x = 1.2,

⇒ 3.5 = 2(1.2) + 1 + r

⇒ 3.5 = 2.4 + 1 + r

⇒ r = 3.5 - 3.4

⇒ r = 0.1

Therefore, for a data point measured as y = 3.5 for an x value of x = 1.2, the residual would be 0.1

Learn more about the residual here:

brainly.com/question/10228420

#SPJ4

7 0
2 years ago
McDonald had a farm with a certain number of orange trees. he had to cut down 5 trees to control the insects. Each of the remain
aleksley [76]
(5x210)+41,790= 42,840 initially

Okay so
5 tree cut down
So now he have 41 790 orange so he have less that initially
We have to found how many he had before the 5 tree were cut down
And don't forget that each tree produces 210 oranges
So you look for how many orange he had lost (5x210)
And then addition what you have with 41,790

I hope you understand
4 0
3 years ago
Choose the correct simplification of (4x − 3)(3x2 − 4x − 3).
tester [92]
(4x - 3)(3x^2 - 4x - 3) 

=4x\cdot \:3x^2+4x\left(-4x\right)+4x\left(-3\right)-3\cdot \:3x^2-3\left(-4x\right)-3\left(-3\right) 

=4x\cdot \:3x^2-4x\cdot \:4x-4x\cdot \:3-3\cdot \:3x^2+3\cdot \:4x+3\cdot \:3 

\mathrm{Simplify}\:4x\cdot \:3x^2-4x\cdot \:4x-4x\cdot \:3-3\cdot \:3x^2+3\cdot \:4x+3\cdot \:3:\quad 12x^3-25x^2+9 

=12x^3-25x^2+9
8 0
3 years ago
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