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Verizon [17]
3 years ago
6

Help PLZ

Mathematics
1 answer:
Makovka662 [10]3 years ago
5 0

Answer:

If they are travelling in opposite directions, their total distance is the 135. So add their distances together to get 135

x=Quinn's speed

x+5 = James' speed

they each travel for 5 hours

speed x time = distance

x(5) + (x+5)(5) = 135

Quinn's distance + James' distance = total distance

5x+5x+25=135

10x = 110

x = 11

Quinn travels at 11 mph and James travels at 16 mph

Quinn travels 55 miles (5x11)

and James travels 80 miles (16 x 5)

80 + 55=135

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A middle school held a Career Exploration Day where students could choose to hear an adult talk about his or her career. 15 stud
mash [69]

Answer:

5/12

Step-by-step explanation:

15 students went to hear the doctor speak and 21 students went to other sessions

How many students are there? 15 + 21 = 36 students

Therefore, the probability to randomly select a student that went to hear the doctor is \frac{15}{36}, then simplifying it by 3 is \frac{5}{12}.

If we want to express it in percentage it would be 41.6%

7 0
2 years ago
A firm offers routine physical examinations as part of a health service program for its employees. The exams showed that 8% of t
IRINA_888 [86]

Answer: 0.206

Step-by-step explanation: the probability of employees that needs corrective shoes are =8%= 8/100 = 0.08

Probability of employees that needs major dental work = 15% = 15/100 = 0.15

Probability of employees that needs both corrective shoes and dental work = 3% = 3/100 = 0.03

The probability that an employee will need either corrective shoes or major dental work = (Probability an employee will need correct shoes and not need dental work) or (probability that an employee will need dental work or not corrective shoes)

Probability of employee not needing corrective shoes = 1 - 0.08 = 0.92

Probability of employee not needing dental work = 1 - 0.15 = 0.85

The probability that an employee will need either corrective shoes or major dental work = (0.08×0.85) + (0.15×0.92) = 0.068 + 0.138 = 0.206 = 20.6%

The probability that an employee will need either corrective shoes or dental work = 0.206.

Please note that the word "either" implies that we must choose one of the two options (corrective shoes or dental work) and not both.

5 0
3 years ago
Help me please help me
IceJOKER [234]

Answer:yes u do need help so go to a Psychiatric hospital

Step-by-step explanation:

8 0
3 years ago
Draw a line through the origin that has a slope of negative 4/3
OleMash [197]
The origin is just (0,0) and we can multiply that slope, -4/3 by any number to get the second point. let's use x=3 to make is simple as possible,  the second point is then just (3,-4)

Connect (0,0) to (3,-4) and you have your line :)
8 0
3 years ago
Which table of values is correct for the equation y = 5(2)x
Tems11 [23]

Answer:

Option D is correct.

x             y

0             5

1              10

2              20

Step-by-step explanation:

Given the equation:  y = 5(2)^x           .....[1]

Here, x is the input variable and y is the output variable.

For x =0

Substitute in equation [1]; we have;

y = 5(2)^{0} = 5 \cdot 1= 5

For x = 1

Substitute in equation [1]; we have;

y = 5(2)^{1} = 5 \cdot 2= 10

For x =2

Substitute in equation [1]; we have;

y = 5(2)^{2} = 5 \cdot 4= 20

Therefore, the table values which is correct for the equation y = 5(2)^x  is;

x             y

0             5

1              10

2              20

5 0
3 years ago
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