Answer:
The answer would be 18
Step-by-step explanation:
the formula for area of a triangle is 1/2b*h
so would mulitply 3*3 and get 9/2 which would be 4.5 do that on the otherside and you would get 4.5 again add together and you would get 9
for the square you would calculate the area by multplying b*h to get 9 so 9+9=18
The weight of the last child is 36 lbs.
<h3>How to calculate the mean?</h3>
The average weight of the three children is 60 lbs. The total weight will be:
= 60 × 3
= 180 lbs.
When another child is added, the weight is 54lb. The total weight will be:
= 54 × 4
= 216 lbs
The weight of the last child will be:
= 216 - 180
= 36 lbs.
Learn more about mean on:
brainly.com/question/1136789
#SPJ1
Maya will receive a change of $23.54
Step-by-step explanation:
Given,
Cost of shoes = $42
Sale = 40%
Amount of sale =
Amount of sale =
Price after sale = Cost of shoes - Amount of sale
Price after sale = 42 - 16.80 = $25.20
Sales tax = 5%
Amount of sales tax = 5% of price after sale
Amount of sales tax =
Amount of sales tax = $1.26
Final price = 25.20+1.26 = $26.46
Amount paid = $50
Change received = Amount paid - final bill
Change received = 50 - 26.46 = $23.54
Maya will receive a change of $23.54
Keywords: percentage, subtraction
Learn more about subtraction at:
#LearnwithBrainly
Answer:
Step-by-step explanation:
hello :
19) h(x)=-2f(x)
20) p(x) = 4f(x)+1
21) m(x) = -1/3 f(x)-4 ...... continu
I think x= - 11 but I could be wrong