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hichkok12 [17]
3 years ago
9

A box contains seven 40-W bulbs, four 60-W bulbs, and six 75-W bulbs. If bulbs are selected one by one in random order, what is

the probability that at least two bulbs must be selected to obtain one that is rated 75 W? (Round your answer to three decimal places.)
Mathematics
1 answer:
OLEGan [10]3 years ago
3 0

Answer: 2.833

Step-by-step explanation:

Add up the amount of light bulbs: (7+6+4).

Divide 17 (^the sum^) by 6 (the amount of 75 watt bulbs).

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At a NASCAR racetrack, the distance per lap is 2 miles. Lou Lambert drives his car at a constant rate of 160 miles per hour. Ral
Nezavi [6.7K]

Answer:

<em>24 minutes</em>

<em></em>

Step-by-step explanation:

Given:

Distance per lap = 2 miles

Speed of Lou Lambert = 160 miles/hr

Speed of Ralph Redding = 170 miles/hr

Speed difference between the two = 170 - 160 = 10 miles/hr

Therefore, we can say that <em>Ralph gains 10 miles in 60 minutes </em>over Lou<em>.</em>

We have to find the time in which Ralph will gain 2 laps i.e. 2 \times 2 = 4 miles.

Let us use unitary method to find the required time.

10 miles are gained by Ralph in 60 minutes

1 mile will be gained in \frac{60}{10} = 6\ minutes

4 miles will be gained in 6 \times 4 = <em>24 minutes</em>

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3 years ago
Find 85% of the number 33.51 help
Makovka662 [10]
33.51 X 85% (0.85) = 28.48
5 0
3 years ago
Read 2 more answers
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bekas [8.4K]

Answer:

<h2>10(4-g)</h2>

Step-by-step explanation:

40 - 10g

Rewrite 40 as 4 × 10

4 \times 10 - 10g

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7 0
3 years ago
A baker had 24 boxes for donuts he ended up making 526 donuts and splitting them evenly between the boxes how many extra donuts
sertanlavr [38]

Answer:

The baker ended up with 22 extra donuts.

Step-by-step explanation:

Since the baker had 24 boxes and made 526 donuts, to split them evenly between the total number of boxes means that we need to divide the number of total donuts by the number of boxes:

526 ÷ 24 = 21 remainder of 22

Since 24 x 21 = 504 and 24 x 22 = 528 and the baker only made 526 donuts, then the most amount of donuts he can use to split them evenly with the total amount of 526 is 504.  526 - 504 = 22, so he has an extra 22 donuts that will not be in boxes.  


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What is the solution to this equation?<br> 3x- x+8+5x-2=10
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