Answer:
42
Step-by-step explanation:
For the step, let's get an answer about how long it would take for Tina to run around the base in 10 minutes.
For this, you would just need to do: 12 ÷ 2 = 6
So, 6 runs = 10 minutes
Since 70 ÷ 10 = 7 ...
All we will have to do is 7 x 6 which would equal 42.
Therefore, Tina can run 42 circles around the base in 70 minutes.
<em>-kiniwih426</em>
For the fraction 28/10,
times 10 at 28 and 10,(to get the same denominator"100")
28×10=280
10×10=100
Thus,
28/10 become 280/100
We can plus the number above the denominator"100",which is 39 and 280.It is because they have achieved a same denominator.
39/100+280/100
=(39+280)/100
=319/100
An irrational number is a number which cannot be expressed in a ratio of two integers. In rational numbers, both numerator and denominator are whole numbers, where the denominator is not equal to zero. While an irrational number cannot be written in a fraction.
Ok, so
Length = L
Width = L + 7
Since area = length x width, then
30 = L × (L + 7)
Remember that L + 7 Is width so...
L + 7 = 30/L
So the expression for the width in terms of length would be...
w = 30/L - 7
Answer:
Width = 15 inches Length = 20 inches
Step-by-step explanation:
The area of a rectangle is calculated using the following formula.
(1)
Where L is the length and x is the width of the rectangle
In this case we know that the length of the rectangle is 5 inches greater than its width. This means that:
(2)
Also The area of a rectangle can be represented by the equation 
so to find the width x we solve the equation
(3)
For an equation of the form 
the quadratic formula is:
In this case note that:
Then:
→ 
→ 
We take the positive solution 
Now we use equation (2) to find L
