Answer:
303.6ft² or 347.88 ft²
Step-by-step explanation:
The question is on area
The dimensions of the living room are given as;
Length= L = 22'-0"
Width= W= 12' -0" or 13'- 9"
Area= L× W
22'×12'=264ft²
Allow 15% waste
264× 115/100 =303.6ft²
or
Length= 22' and width = 13' 9"
change 9" to ft ⇒1'=12"...........................divide by 12"
9/12=0.75'................add to 13'
13'+0.75'=13.75'
Area=L×W
22'×13.75'=302.5ft²
Add 15% allowed waste
302.5 × 115/100 =347.88 ft²
The answer to this is 62.
A. undefined because the line is horizontal
Answer:
number of hours Alexander family ‘s sprinkler work = 20
number of hours Morgan family ‘s sprinkler work = 30
Step-by-step explanation:
Given in the question,
water output rate for the Alexander family ‘s sprinkler = 40 L
water output rate for the Morgan family ‘s sprinkler = 20 L
Suppose, number of hours Alexander family ‘s sprinkler work = x
Suppose, number of hours Morgan family ‘s sprinkler work = y
Equation1
x + y = 50
Equation 2
40x + 20y = 1400
x = 50 - y
Put this value of x in equation 2
40(50-y) + 20y = 1400
2000 - 40y + 20y = 1400
-20y = 1400 - 2000
-20y = -600
y = 30
Put this value of y in equation 1 to get the value of x
x + 30 = 50
x = 50 - 30
x = 20
1)
Solving from system of equations:
x- amount of 1 cent stamps
y- amount of 33 cent stamps
2)
x- amount of 20 cent stamops
y-amount of 34 cent stamps
From system of equations: