Drew earns money washing cars for his neighbors on the weekends. Drew charges a set rate for each car he washes.

Mathematics

2 answers:

Lapatulllka [165]2 years ago

8 0

Answer:

Step-by-step explanation:

statuscvo [17]2 years ago

5 0

Answer:

Step-by-step explanation:

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An electrical engineer has on hand two boxes of resistors, with five resistors in each box. The resistors in the first box are l

Tju [1.3M]

Answer:

Step-by-step explanation:

given that an electrical engineer has on hand two boxes of resistors, with five resistors in each box. The resistors in the first box are labeled 10 ohms, but in fact their resistances are 9, 10, 11, 12, and 13 ohms. The resistors in the second box are labeled 20 ohms, but in fact their resistances are 18, 19, 20, 21, and 22 ohms. The EE chooses one resistor from each box and determines the resistance of each

Sample space for selecting one resistor from first box

= {9, 10, 11, 12, 13}

A = {11,12,13} (because >10)

Sample space for selecting one resistor from second box

={18,19,20,21,22}

B={18}

Sample space for sum would be

{27, 28, 29, 30, 31, 32, 33, 34, 35}

C = {(9,19) , (10,18)}

8 0

2 years ago

The price of a math book after a discount of 25% is $36. What is the original price of the math book?

UNO [17]

If $36=75%,
That means we can divide both sides by three to get $12=25%,
And because 25x4 is 100, we multiply both sides of the equation by 4 to get $48=100%,
So the answer is $48 dollars.

This also worked for me but I’m not sure it’s the most reliable way:
36 ÷ 0.75 = 48
(amount after discount ÷ percentage that is remaining)

3 0

2 years ago

A boxer weighs 14 stone 5 lbs. To be in the heavyweight division, he must be > 91 kg. What is his weight in kg to 2 decimal p

Karo-lina-s [1.5K]

14x14= 196 lb.
196/2.2= 89.09 kg.

Did that help?

4 0

2 years ago

Read 2 more answers

What type of triangle has side lengths 12, 13, and 2√3?

Travka [436]

Answer:

The triangle is an obtuse scalene triangle