Step-by-step explanation:commutative property
hope it helps
Answer:
Yes, 3/7 is bigger than 2/5
Step-by-step explanation:
First, put the fraction side by side
Multiply diagonally. So multiply 3 × 5 and 2 × 7
3 × 5 = 15
2 × 7 = 14
15 >14
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Answer:
2. y = x + 16; 0.21y = 0.27x + 2.88
Step-by-step explanation:
You have two conditions:
- Volume of 18 % + volume of 27 % = volume of 21 %
- Mass of acid in 18 % + mass of acid in 27% = mass of acid in 21 %
For the first condition,
16 + x = y Transpose
(1) y = x + 16
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For the second condition
V₁c₁ + V₂c₂ = V₃c₃
16×0.18 + 0.27x = 0.21y
2.88 + 0.27x = 0.21y Transpose
(2) 0.21y = 0.27x + 2.88
The system of equations is y = x + 16; 0.21y = 0.27x + 2.88
186-42 = 144
Original price is 288 (5th option)
Equation is 0.5x + 42 = 186 (last option)
Please give brainliest I’d really appreciate it.
169.65mm
A=2πrh+2πr2=2·π·3·6+2·π·32≈169.646
