Answer:
68< t < 77
Step-by-step explanation:
The temperature must be between 68 and 77
68< t < 77
Let x = number of 5 cent coins.
Then there are (x+2) 10 cent coins.
Let y = 20 cent coins.
Total coins: x+(x+2)+y = 30
2x+y=28
y = 28-2x (1)
Total value: 0.05x + 0.1(x+2) + 0.2y = 3.80
0.15x + 0.2y + 0.2 = 3.80
0.15x + 0.2y = 3.60 (2)
Substitute (1) into (2).
0.15x + 0.2(28-2x) = 3.60
-0.25x + 5.60 = 3.60
2.00 = 0.25x
8 = x
From (1), obtain y = 28 - 2(8) = 12
Answer: (x+2) = 8+2 = 10
Louise has 10 10-cent coins
Im pretty sure its the commutative property.
Answer:
X/-2>5
Step-by-step explanation:
This is an Inequality
Answer:
130.24
Step-by-step explanation:
8*10+3.14*4^2=
80+50.24=130.24 ft^2
Cut the shape into a semi-circle and rectangle (with length 10 and width 8).
You'll find the radius of the semi-circle is 4.
The area of the rectangle is 80.
Then use the pir^2 formula but replace pi with 3.14
3.14 multiplied by radius 4 squared is 50.24
50.24 plus 80 is 130.24 ft squared.
