Answer:
numerator = 3
denominator = 4
Step-by-step explanation:
Answer:
sandwiches is £1.8
bottle water = £1.2
Step-by-step explanation:
Given data
let cheese sandwiches be x
and bottle water be y
3x+2y= 7.8------------1
5x+4y= 14.20---------2
solve 1 and 2
3x+2y= 7.8------------1*5
5x+4y= 14.20---------2*3
15x+10y= 39
- 15x+12y= 42.6
-2y = -3.6
y= 3.6/2
x=1.8
Put x= 1.8 in 1
3(1.8)+2y= 7.8
5.4+2y= 7.8
2y= 7.8-5.4
2y=2.4
y= 2.4/2
y= 1/2
Hence cheese sandwiches is £1.8
bottle water = £1.2
Answer:
A = 18 cm²
Step-by-step explanation:
The volume (V) of a prism is calculated as
V = area of base (A) × height
Here V = 216 cm³ and h = 12 cm , then
A × 12 = 216 ( divide both sides by 12 )
A = 18 cm² ← area of base
The number is -10.
Explanation:
3x + 5 = -25
3x = -30
x = -10
Answer: 18 dollars. edit: 18 dollars 3 plus the 15.
Step-by-step explanation:
Multiply the cost 15 by the percentage you want to tip in this example: 15 times .20