Answer:
The answer is
B. Compatible Numbers Strategy
Step-by-step explanation:
According to learnalberta "The compatible numbers strategy is a method of estimating computations by using "friendly" or "nice" numbers that can be easily calculated mentally. Compatible numbers can be used in estimating sums, differences, products and quotients."
So the closest number to 249 that can be divided by 12 is 240
240/12= 20
$30/ 3 sweatshirts = $10 /shirt
$ 10/shirt * 4 shirts = $40
It would cost $40
Answer:
Last Year Length = 4 meters
This Year Length = 12 meters
This Year Width = 10 meters
Step-by-step explanation:
We know, area of the rectangle is given by the formula:
Area = Length * Width
Given width = 5
Area = 20
We solve for Length:
Area = Length * Width
20 = Length * 5
Length = 20/5 = 4
Last Year Length = 4 meters
Now, this year, the length would be 3 times as long, so new length would be:
This Year Length = 4 * 3 = 12 meters
This year, the width would be two times previous year, so width would be:
This Year Width = 5 * 2 = 10 meters
Answer:
X = 40°
Step-by-step explanation:
The sum of the interior angles in a triangle is 180°. This means that:
2X + 35 + 2X - 15 = 180° - we can simplify this
4X + 20 = 180° - now, subtract 20 from both sides
4X = 160° - finally, divide both sides by 4
X = 160 ÷ 4 = 40°
X = 40°
Hope this helps!
Answer:
True
Step-by-step explanation:
we know that
A non-negative number is a real number greater than or equal to zero
In this problem
we have
The solution of the inequality is all real numbers greater than or equal to zero [0,∞)
Therefore
express a non-negative number in symbols
