Answer:
120 minutes or 2 hours
Step-by-step explanation:
1/2 x 3 = 1 1/2
40 x 3 = 120 or 2 hours
5) The less than symbol, using x, is <em>x < __</em>. The blank should have the number that comes after, which is <em>-15°F</em>. So, that will look like x < -15°F
6) When something is at most __, that means that __ is the greatest number, which means the inequality looks like <em>x ≤ __</em>. The number that goes into the blank is <em>127 pounds</em>, which makes the whole inequality x ≤ 127 pounds.
7) An inequality is solved similarly to an equation, with a few exceptions.
x - 3 < -15
Subtract: x < -12
That looks like what is shown in the image. The circle is empty because the inequality does not say that it contains -12, so it is skipped. It goes to the left because the inequality shows all numbers less than -12.
<h2>
Maximum area is 25 m²</h2>
Explanation:
Let L be the length and W be the width.
Aidan has 20 ft of fence with which to build a rectangular dog run.
Fencing = 2L + 2W = 20 ft
L + W = 10
W = 10 - L
We need to find what is the largest area that can be enclosed.
Area = Length x Width
A = LW
A = L x (10-L) = 10 L - L²
For maximum area differential is zero
So we have
dA = 0
10 - 2 L = 0
L = 5 m
W = 10 - 5 = 5 m
Area = 5 x 5 = 25 m²
Maximum area is 25 m²
Answer:
5
Step-by-step explanation: