Answer:
81cm
Step-by-step explanation:
15cm + 20cm + 21cm + 25cm = 81cm
Answer:
it may be 27
Step-by-step explanation:
12^2+16^2=400
square root 400= 20
36/16=2.25
12*2.25=27
Answer:
x = 0, 51
Step-by-step explanation:
<u>→First, you need to factor out the GCF (Greatest Common Factor), which is -0.03x, like so:</u>
-0.03x (x - 51) = 0
<u>→Remove the -0.03 by divide it by both sides:</u>
x(x - 51) = 0
<u>→Separate each, like so:</u>
x = 0
x - 51 = 0
<u>→Solve for x:</u>
x - 51 = 0
x = 51
<u>Your solutions are, 0 and 51.</u>
Answer: 9 and 12
Step-by-step explanation:
The given equations are
12x + 4y = 152 ...........1
32x + 12y = 420 .....2
Multiplying equation 1 by 3 to make coefficient of y same we have:
36x+12y= 456
32x+12y=420
Subtracting the two equations we have:
4x=36.
Dividing by 4 both sides
x= 9.
Substituting x value in equation 1
12(9) + 4y = 152
108+4y=152
Subtracting 108 both sides: 4y=44.
Dividing both sides by 4.
y=11.
cost of the vegetarian lunch is $11.
In the equations, x represents the cost of a chicken lunch and y represents the cost of a vegetarian lunch.