Answer:
solution:
x = pounds of cashews = 20
y = pounds of peanuts = 70
Step-by-step explanation:
x = pounds of cashews
y = pounds of peanuts
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4.75x + 2.50y = 3.00*90
x + y = 90
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put the system of linear equations into standard form
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4.75x + 2.50y = 270
x + y = 90
The area of a circle:
A = πr²
dA/dr = 2πr
We are given dA/dt, using the chain rule
dr/dt = dA/dt x dr/dA
dr/dt = 1 x 1/2πr
When circumference = 2 cm:
2 = 2πr
r = 1/π; putting this value of r
dr/dt = 1/2π(1/π)
dr/dt = 1/2 cm/s
The radius is increasing at a rate of 1/2 cm/s.
Answer:
Please read the answers below.
Step-by-step explanation:
1. Australia:
75 * 1.87 =140.25 Australian dollars
2. Brazil:
75 * 2.32 = 174 Reals
3. Britain:
75 * 0.69 = 51.75 Pounds
4. Canada:
75 * 1.60 = 120 Canadian dollars
5. China:
75 * 8.28 = 621 Yuan
6. Denmark:
75 * 8.43 = 632.25 Kroner
7. Japan:
75 * 131.55 = 9,866.25 Yen
8. Mexico:
75 * 9.19 = 689.25 Mexican pesos
9. South Africa:
75 * 11.9 = 892.50 Rands
10. Sweden:
75 * 10.61 = 795.75 Kronor
11. Switzerland:
75 * 1.68 = 126 Francs
12. Thailand:
75 * 44.18 = 3,313.50 Baht
Round to the next integer in all currencies.
Answer:
The parameter is the average number of hours students at the school watch TV per day.
Step-by-step explanation:
The correct option is : The parameter is the average number of hours students at the school watch TV per day.
Quick steps to solve this.
1. Lets square both. (X +Y)*2 = 7*7
2. Then, X*2 + 2XY + Y*2 = 49
3. Since XY is given to 4, X*2 + 8 + Y*2 = 49
4. Move 8
5. X*2 + Y*2 = 49 - 8
6. X*2 + Y*2 = 41
The answer is "41" Boom!
