Answer: ok if 7 is multiplied by (9-5) divided by two I got you
Step-by-step explanation: First you subtract 9 from 5 since it is in parentheses. You got 4 now so your equation is 7 x 4 divided by ( / ) 2 so m comes before d so you multiply 7x4= 28
Now your equation is 28/2 so you get 14.
Answer: 1. ?? 2. 12 hours
Step-by-step explanation:
For 1., you never told us how much snow there already is.
For 2., you do 420 divded by 35, which gives us 12.
Answer:
Step-by-step explanation:
Given that,
The area of a square is given by :
A = s² ....(1)
Where
s is the side of the square.
Differentiating (1) wrt s.
Put s = 10 in the above equation.
So, the rate of change of the area of a square is 20 units
Answer:
52metre
Step-by-step explanation:
Let us use proportion in solving this question, the land has a scale of 1 1/4 cm to 3 1/4 m then the proportion is
( 1 1/4)/ (3 1/4 ) =[blueprint of the plot of land/length of the actual peace of land]
But we need to convert those mixed fractions to improper fraction for easy simplification
1 1/4= [(4×1)+4]= 5/2
3 1/4=[(4×3)+1)]=13/4
Then we can proceed with simplification as
(5/2)/(13/4)=[blueprint of the plot of land/length of the actual peace of land]
But we were given length of the actual peace of land as 20 cm, then
(5/2)/(13/4)=[blueprint of the plot of land/20]
If we cross multiply we have
[blueprint of the plot of land] ×13/4 =5/2 ×20
[blueprint of the plot of land] =(5/2 ×20)÷(13/4)
= 50/(13/4)
=(4×13)/50
= 52
Therefore, the length of the actual peace of land is 52metre
Answer:
2.36 in.
Step-by-step explanation:
1 foot is equivalent to 1/80 in.
So 189 feet is equivalent to 189/80 in = 2.36 in.