Answer:
see answers below to match them
Step-by-step explanation:
12r + t - 4r + 6t
=12r - 4r + t + 6t
=8r + 7t
(12r+2t) - (4r+10t)
=12r + 2t - 4r - 10t
=8r - 8t
=8(r-t)
12(r+t)-6(r+t)+4(r+t)-2(r+t)
=(12-6+4-2)(r+t)
=8(r+t)
Answer: The constant of variation value of 7.
Step-by-step explanation: We are given cost of 0.8 meter of a silk ribbon = $5.60.
Let us assume y be the total cost for x meter of a silk ribbon and k is the constant of variation.
So, we can set up an equation for proportion relationship:
y = k x.
<em>Let us plug x=0.8 and y= 5.60,</em> in above proportion relationship equation, we get
5.60 = k (0.8).
Dividing both sides by 0.8, we get
5.60/0.8 = k(0.8)/0.8
k =7.
Therefore, the constant of variation value of 7.
Answer:
12.5
Step-by-step explanation:
Keep dividing by 2, 25 divided by 2 is 12.5
14 2/5 as a decimal is 14.4
3/8 as a decimal is 0.375
14.4 ÷ 0.375 = 38.4 or 38 2/5
Answer:
The answer is 28.
Step-by-step explanation:
Add all of them.
(L/ length) 12.
(W/ width) 10
(H/ height) 6
12 + 10 + 6 = 28
I hope this helps
