Question

A bat and a ball cost $1.10 in total. The bat costs $1 more than the ball. How much does the ball cost? 2. If it takes five machines five minutes to make five widgets, how long would it take 100 machines to make 100 widgets? 3. In a lake, there is a patch of lily pads. Every day, the patch doubles in size. If it takes 48 days for the patch to cover the entire lake, how long would it take for the patch to cover half of the lake? please with explanation

Answer 1

Answer:

cost of bat : $1.05

cost of ball : $0.05

Explanation:

the cost of ball is $0.5

thus the cost of bat = $0.5 + $1 = $1.05

so in total they cost $0.05 + $1.05 = $1.10

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2. answer: 5 minutes

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Answer 2

X be the value of ball.

1$ more than ball equals bat.

So now Bat costs X + $1

Total cost of bat and ball is $1.10

Now BAT(X+$1) + BALL(X) = $1.10

hence (X + 1) + X = 1.10

2X + 1 = 1.10

2X = 1.10 - 1

2X = 0.10

$X = 0.05$