40 is the correct answer for this
Answer:
V=(πr^2 x h)/3
lets use π as 3.14 cause I dont know what pi u using
3.14 x 4^2 x 15 = 753.6/3 = 251.2
If you're using π as your pi, than just replace 3.14 by π on calculator
Hope that answers your question
(7,5) is the solution to this system.
Answer:
I think it is $3.25
Step-by-step explanation:
<u>140*3=420- </u>original price with 140 sold each day
130*3.25=422.5- 10 less hotdogs sold with $0.25 price increase
110*3.75=412.5- 30 less hotdogs sold with $0.75 price increase
90*4.25=391.5- 50 less hotdogs sold with $1.25 price increase
60*5.75=345-80 less hotdogs sold with $2.75 price increase
Answer:
0.4kg, 1.4kg and 1.8kg
Step-by-step explanation:
Given parameters:
Mass of alloy = 3.6kg
Ratio of elements in the alloy = 2:7:9
Unknown:
Mass of each element in the alloy = ?
Solution:
To find the mass of each element in the alloy, first find the sum of the ratio;
2+7+9 = 18
Mass of nickel = 
x 3.6 = 0.4kg
Mass of zinc = 
x 3.6 = 1.4kg
Mass of copper = 
x 3.6 = 1.8kg
The mass of each metal is 0.4kg, 1.4kg and 1.8kg
