Answer:
23
Step-by-step explanation:
10.6 > 11
7.067 > 7
4.78 > 5
11+7+5=23
X + y = 40.....multiply by -4
4x + 6y = 180
-------------------
-4x - 4y = -160 (result of multiplying by -4)
4x + 6y = 180
------------------add
2y = 20
y = 20/2
y = 10 <===
x = 30
Answer:
2 and 3
Step-by-step explanation:
Let's start by finding the closest two perfect cubes to 22:
8 and 27
These are 2³ and 3³ respectively.
If 22 is between 8 and 27 this means the cube root of 22 is between 2 and 3
Rotation about a point does not change any dimensions. C'D' = CD = 2.8 units.
Answer:
Pens = $3.50
Pencils = $4.25
Step-by-step explanation:
4x + 5y = 36.25
4x + 3y = 26.75
Subtract
2y = 8.50
Divide
y = 4.25
Substitute
4x + 3(4.25) = 26.75
4x = 12.75
x = 3.50