Answer:
1) 22.5 A
2) 112 B
3) 430 L
4) 576 P
5) 486 L
6) 624 S
Code is A B L P L S
Step-by-step explanation:
1) Area of a triangle = 1/2 * base * height = 1/2 *5*9 = 22.5
2) Area of a parallelogram = base x height = 14 x 8 = 112
3) Area of a rectangular prism = 2(length * width) + 2*(length + height) + 2 *(length *height)
= 2(15x7 + 15*5 + 7*5)
= 2(105 + 75 + 35)
= 2 * 215
= 430
4) Volume of a triangular prism = 1/2 * base * length * height
= 1/2 * 8 * 16 * 9
= 576
5) A cube has six surfaces. Each surface has an area of s x s where s is the length of each side. In this case, each side has area of 9x9 = 81. Total surface area = 6 x 81 = 486 and that is the paper required
6) The trailer is a rectangular prism so its volume = length x width x height = 13 6 x 8 = 624
Now you have to look at each value and see which letter it corresponds to. For example answer 1) is 22.5 which lies between 0-100 so it gets letter A, answer (2) is 112 which lies in the range 101-200 so it gets the letter B and so on
Answer: 7 years
Step-by-step explanation:
let x be the age of Mary
so John's age will be 2x
the equation becomes
2x+x=21
3x=21
x=21/3
x=7
Answer:
(3) 11
Step-by-step explanation:
A line perpendicular to one with a slope of -2 will have the opposite reciprocal slope: -1/(-2) = 1/2.
The point-slope equation of the line through (3, 9) with slope 1/2 is ...
y -9 = 1/2(x -3)
Then for point (7, k) on the line we have ...
k -9 = 1/2(7 -3)
k = 9 +2 = 11
The value of k is 11.
Answer:
22%
Step-by-step explanation:
In 2000, the cost price for a gallon of milk was $2.69
In 2010, it costs $3.29.
Increase = $3.29 - $2.69
= $0.6
% increase =increase/original pricex100%
= $0.6/$2.69 x 100%
= 0.22 x 100
= 22%
Therefore , there was a 22% increase in the price of gallon of milk from 2000 to 2010