Width = 9 cm
area = 63 cm^2
length = area ÷ width = 63 ÷ 9 = 7cm
perimeter = 2(l+b) = 2(7+9) = 32 cm
220 inches cube
Step by step explanation: multiply all of them to find the volume
Answer:
3 : 2
Step-by-step explanation:
We are asked to calculate as a ratio 9 nickels to 3 dimes reduced to lowest terms.
One nickel means $0.05 and one dime means $0.10.
So, 9 nickels is equal to $(0.05 × 9) = $0.45
And 3 dimes is equal to $(0.10 × 3) = $0.30
Therefore, the ratio will become 0.45 : 0.30 ≡ 3 : 2 (Answer)
Answer:
y = 1/2x + 7
Step-by-step explanation:
Parallel lines have the same slope.
Therefore the new equation will have a slope(m) = 1/2
Substitute m = 1/2 and point (-2, 6) into y = mx + b to solve for "b"
y = mx + b
6 = 1/2(-2) + b
6 = -1 + b
7 = b
The new equation: y = mx + b
y = 1/2x + 7
Answer:
Mean: 65.25
Median: 70.5
Mode: 70
Step-by-step explanation:
Mean is the sum of the set of numbers divided by the number of numbers in the set.
20+68+70+70+71+72+75+76=522
522/8=65.25
The median is the number that is in the middle of the set when put in numerical order.
Since there is an even amount of numbers, the two middle numbers are 70 and 71, so you would take the mean of these two numbers to find the median.
70+71=141
141/2=70.5
The mode is the number that occurs most frequently in the set.
70 appears more times than any other number, therefore it is the mode.
