Answer:
h = (2 A)/(b_1 + b_2)
Step-by-step explanation:
Solve for h:
A = 1/2 h (b_1 + b_2)
A = 1/2 h (b_1 + b_2) is equivalent to 1/2 h (b_1 + b_2) = A:
1/2 h (b_1 + b_2) = A
Divide both sides by 1/2 (b_1 + b_2):
Answer: h = (2 A)/(b_1 + b_2)
On the second floor we have 6 apartments, and we have 2 more apartments with 3 bedrooms, so 8/16 apartments are either on the second floor or have 3 bedrooms. 8/16 is the same as 1/2, or 50%
3x + 2y = 19
2x + 4y = 24
this would be ur system of equations
Answer:
Subtracted 12 times a number from 72 is less than 24.
Step by step solution
Given inequality is 
We need to write in word.
12a means 12 times a number “a”
72-12a means subtract 12a from 72.
72-12a<24 means result is less than 24.
Inequality shows “Subtracted 12 times a number from 72 is less than 24”
If we solve for number “a”
-12a<24-72
-12a<-24
a>2
All the number greater than 2 satisfy the given inequality.
Answer:
Answer:age of new student is 13.4 years
Step-by-step explanation:
SUM of ages all 40 students =average age times 40
=15*40=600
after leaving 18 years old student
SUM of ages of 39 students will be 600-18=582
after adding new student with age x
SUM of ages of 40 students will become 582+x
and the average would be (582+x)/40
which is given as 14.885
so we get equation
(582+x)/40=14.885
582+x=14.885*40=595.4
x=595.4-582
x= 13.4
age of new student is 13.4 years
Hope it will help you
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