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3 years ago

PLEASE GIVE CORRECT ANSWER PLEASE!!

Mathematics

1 answer:

vagabundo [1.1K]3 years ago

3 0

ANSWER:

1). False

2). True

3). False

4). True

5). False

6). False

Hope it helps :)

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What is the solution 6x-19= 2(x-1) +11

stiv31 [10]

So because of PEMDAS you want to distribute the 2 to the parentheses so you'll get

6x-19=2x-2+11

Then you can just add like terms

6x-19=2x+9

Now you want to get all your variables on one side so you'd add 19 and subtract 2x

4x=28

Now you divide 28 by 4

x = 7

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3 years ago

It took Jill two hours to drive 100 miles. what was her average speed?

lakkis [162]

Average speed is 50 mph

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3 years ago

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Slips of paper numbered 1 to 15 are placed in a box. A slip of paper is drawn at random. What is the probability that the number

monitta

Given:

Slips of paper numbered 1 to 15 are placed in a box.

To find:

The probability that the number picked is either a multiple of 5 or an odd number.

Solution:

We have,

Total outcomes = 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15

No. of total outcomes = 15

Multiple of 5 are 5, 10, 15.

Odd numbers are 1, 3, 5, 7, 9, 11, 13, 15.

Number that are either a multiple of 5 or an odd number are 1, 3, 5, 7, 9, 10, 11, 13, 15.

No. of favorable outcomes = 9

We know that,

$\text{Probability}=\dfrac{\text{Favorable outcomes}}{\text{Total outcomes}}$

$\text{Probability}=\dfrac{9}{15}$

$\text{Probability}=\dfrac{3}{5}$

$\text{Probability}=0.6$

Therefore, the probability that the number picked is either a multiple of 5 or an odd number is 0.6.

8 0

3 years ago

Whal value of x is in the solution set of 9(2x + 1) < 9x - 18?

Galina-37 [17]

Answer:

A:-4

Step-by-step explanation:

If you simplify 9(2x+1)<9x-18 you will get 9x<-27. That will mean x<-3 and the only answer for something less than -3 is -4.

If the answer was right, please put 5 stars.

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4 years ago

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You give tours on the Great Lakes and talk about points of interest. A lighthouse typically has 2 beacons that rotate together—b

tatiyna

Since the beacons rotate together, the angular speed is constant.

From the time you see the first beacon, you have to wait for the lighthouse to make 120°, i.e. 1/3 of a whole turn.

So, if T is the time it takes for the lighthouse to make a whole turn, the interval between the first and the second beacon is T/3.

The interval between the second and third beacon is the amount of time it takes to the lighthouse to make the remaining 2/3 of a turn, so that you'll see the first beacon again. So, this time is 2T/3

So, the ratio is

$\dfrac{2T}{3}\div\dfrac{T}{3}=\dfrac{2T}{3}\cdot\dfrac{3}{T}=2$

So, the time between the second and third beacon is twice as much the time between the first two.

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4 years ago