Answer: 1 7/10
Step-by-step explanation: u add 1 3/10 and 2/5
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Answer:
Variables:
x - group lessons
y - private lssons
The systems of equations to represent the problem:
12x+3y=132
10x+2y=100
Solution:
The cost for private lessons is $200
Step-by-step explanation:
x is the number of group lessons
y is the number of private lessons
multiply 12x+3y=132 by 5
multiply 10x+2y=100 by -6
so now the two equations you have are
60x+15y=660
-60x+-12y=-600
add the two equations together and you get
3y = 600
now solve for y:
y=200
Answer:
What can u show pic
Step-by-step explanation:
You need to solve the following set equations:
x+y=43
32x+28y=1288
Where x is the number of adults and y is the number of childs
the solution is
x=21
y=22
Answer:
r = 8
Step-by-step explanation:
Given that M is directly proportional to r² then the equation relating them is
M = kr² ← k is the constant of proportionality
To find k use the condition when r = 2 , M = 14
k = = =
M = r² ← equation of proportion
When M = 224, then
224 =r² ← multiply both sides by 2
7r² = 448 ( divide both sides by 7 )
r² = 64 ( take the square root of both sides )
r = = 8
have wonderful day