Answer:
Step-by-step explanation:
Put the numbers in place of the corresponding letter and do the arithmetic.
y -10 = 8 -10 = -2
12 -z = 12 -(-12) = 24
3 -x = 3 -(-3) = 6
z -24 = -12 -24 = -36
Answer: each hospice costs $4 and each shrub costs $9
Step-by-step explanation:
Let x represent the cost of one hospice.
Let y represent the cost of one shrub.
Mike spent $71 on four hospice and seven Travis. This means that
4x + 7y = 71- - - - - - - - - - - - -1
Danielle spent $53 on 13 hospice and three shrubs. This means that
13x + 3y = 53- - - - - - - - - - - 2
Multiplying equation 1 by 13 and equation 2 by 4, it becomes
52x + 91y = 923
52x + 12y = 212
Subtracting, it becomes
79y = 711
y = 711/79
y = 9
Substituting y = 9 into equation 1, it becomes
4x + 7 × 9 = 71
4x + 63 = 71
4x = 71 - 63
4x = 8
x = 8/4 = 2
Do 3.14 times 4 because if one similar charm has a 1cm diameter and a circumference of 3.14 you could just multiply it
Answer:
f(x)=3x-4
Step-by-step explanation:
Answer:
9
Step-by-step explanation:
area of a circle = pi times radius^2
254.34= 3.14 X r^2 get rid of 3.14 by dividing both sides by 3.14
254.34/3.14= r^2
81= r^2
find the square root of 81=9
