Answer: 22
Step-by-step explanation:
Given
Brittney has 2 and 
yards of fabric
Converting it to a fraction
Wreath require 
yards
Number of wreaths that can be made
She can make 22 wreaths
The word 'difference' indicates the use of subtraction in a Mathematical sum
The error is that the sum could be 15 - 5y instead of 5y - 15
A subtraction sum does not have the commutative properties, meaning that we cannot do the sum in any order.
A sum 15 - 5y will give a different result with the sum 5y - 15 for the same value of y.
Answer:
449/100
Step-by-step explanation:
1.67 + 2.82 = 4.49
4.49 = 4(0.01) + 49(0.01) = 449(0.01)
Multiplying 449 by 0.01 is the same as dividing 449 by 100
4.49 as fraction = 449/100
-Chetan
Answer:
- Part a → dv/dt = 24 cm³/per second
- Part b → dv/dt = 1176 cm³/per second
Step-by-step explanation:
As all edges of a cube are expanding at a rate of 2 centimeters per second.
i.e ds/dt = 2 cm/s
The formula of volume of cube: V = s³
Differentiating the volume:
dv/dt = 3s²
Write ds/dt following derivative of volume
dv/dt = 3s² ds/dt
plug in the value: ds/dt = 2 cm/s
dv/dt = (3s²) (2)
dv/dt = 6s²
Given the edge is 2cm.
so plug in the value: s=2
dv/dt = 6s²
= 6(2)²=6(4)=24 cm³/per second
SIMILARLY,
When the edge is 14cm
dv/dt = 6s²
plug in the value: s=14
dv/dt = 6s²
= 6(14)²=6(196)=1176 cm³/per second
Thus,
- Part a → dv/dt = 24 cm³/per second
- Part b → dv/dt = 1176 cm³/per second
