Problem 1
-8 Answer
Problem 2
(8 - 3)^2 - (3 + 10)
5^2 - (13)
25 - 13
12 Answer
Shirley measures the thickness of the sides of a cardboard box using a ruler that has centimeter and inch markings. Which of the
following is most likely the value that Shirley measures?
2 answers:
The options associated with this question are:
A.) 2.85 mm
B.) 3.0 in
C.) 0.118 in
D.) 3.0 mm
Now we solve this by the method of elimination.
First, we have to note that the scale has only centimeters and inches. So there is no way that Shirley is going to be able to measure in millimeters (mm). So that rules out option A and option D
Next, when a scale has measurement in inches it would be numbered from 0,1,2.... and the space between 0 and 1 is again divided into 16 markings. There would be 16 markings per inch as shown in the attached figure. So, she is not going to be able to measure accurately to the precise 0.118 inch. So option C is also eliminated.
So the correct option is Option B) 3.0 in
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Answer:
Step-by-step explanation:
Given as :
The distance cover while running = = 5 miles
Let The speed for running =
The distance cover with bike = = 80 miles
The speed for biking = = 15 mph +
Total Time taken = 5 hours
Now Time =
∴ 5 hour = +
Or, 5 hour = +
Or, 5 hour =
or, 5 × () =
Or, -
= 0
or, = 0
or, = 0
Or, = 0
Or, = 0
Or, = 0
∴ = 3 , - 5
So, the running speed = 3 mile per hour
And the biking speed = 15 mph + 3 mph = 18 mile per hour
Hence The running speed of Stu is 3 mile per hour . Answer