Maggie bought a total of 30 pounds of three different types of produce to feed her hungry hippopotamus.
1 answer:
Let b pounds be the weight of bananas, d pounds - weight of dragon fruit and g pounds - weight of guavas Maggie bought.
1) Maggie bought a total of 30 pounds of bananas, guavas and dragon, then
b+d+g=30.
2)
- Bananas cost $1 per pound, then b pounds of bananas cost $b;
- Guavas cost $2 per pound, then g pounds of guavas cost $2g;
- Dragon fruit costs $3 per poundd pounds cost $3d.
In total Maggie spent $46, thus,
b+2g+3d=46.
3) The weight of the bananas (b pounds) that Maggie bought was twice the weight of the guavas (g pounds) and dragon fruit (d pounds) combined. So
b=2(g+d).
The system of equations is
Answer: equations 1, 2 and 5 are correct
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Answer: 0.3 .
Step-by-step explanation:
The digits in number system = 10 ( 0 to 9)
The total different nine-digit Social security numbers = [By Fundamental counting principle]
= 1 billion
Total people in united state = 300 million = 300, 000 ,000
Since each person In US have equal chance to get chosen.
Therefore , if a number is selected randomly , then the probability that it belongs to one of the 300 million people in the United States :-
Hence, the required probability is 0.3 .