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gulaghasi [49]
2 years ago
13

Dina and Masha started out on a 20 miles bike path at the same time. When Dina reached the end of the 20 miles, Masha still had

4 miles left to bike. If Dina’s biking speed was 10 mph, find Masha’s biking speed.
Mathematics
2 answers:
leonid [27]2 years ago
4 0

Answer:

8mph

Step-by-step explanation:

(20-4)/2

=16/2

=8

Bingel [31]2 years ago
3 0

Answer:

8

Step-by-step explanation:

(20-4)/2=16/2=8

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Answer:

1. m=- -1 2. -1+1

Step-by-step explanation:

Ok for the first one you need to label 3 x1 0 y1 6 x2

and -3 y2

Next you need to do y2-y1 over x2-x1 so fill that in and your equasion is (-3-0)

------------ = -3

( 6-3) ----

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That reduces to -1 because -3 divided by 3 is -1

As for number 2 we need to find b to do this pick any of the y's from before we can go with 0 so the 0 is y in the equasion and we already learned slope is -1 so your equasion should be 0=--1+b ok to solve this you need to add -1 to both sides since its a negitive so you add 1 to 0 which is 1 and when you add 1 to -1 it cancells it out so you have 1=b so b is 1 for the equsion you just fill it in so it is y=- -1+1

I hope I helped

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Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
I need help, with this
galina1969 [7]
I would say Tuesday, since it’s the only part that decreases on the whole graph.
8 0
2 years ago
Each section of a race is 25 mile. the race has 4 sections.
In-s [12.5K]
The answer is to that is 100
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3 years ago
Imagine that the average weight of a total of 500 girls in a high school is 35kg. Tom randomly sampled 10 girls and measured the
Naddik [55]

Answer:

The sample 2 has a lowest value of SE corresponding to the least sample variability.

Step-by-step explanation:

As the value of the sample means and standard deviations are not given, as similar question is found online from which the values of data is follows

The data is as attached with the solution. From this data

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As per the measure of the sample variability is linked with the value of SE or standard error. Which is lowest in the case of sample 2 .

So the sample 2 has a lowest value of SE corresponding to the least sample variability.

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