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3 years ago

PLZ HELP PLZ

Mathematics

2 answers:

Step2247 [10]3 years ago

3 0

The single digit to the left of the vertical line is the tens units, the numbers to the right are the ones.

The scores above 64, would be 65, 73, 74, 77, 87, 88, 91, 93, 93, 97, 99, 99

A total of: 12 scores.

neonofarm [45]3 years ago

3 0

Answer:

Step-by-step explanation:

A stem-and-leaf plot is a format used to present quantitative data, where stem values are tenths and leaf values are units. For example, in this case, the first value is 32, 3 tenths (stem) and 2 units (leaf). So, each value in the stem colum is tenth and each number in leaf colum represents unit of those tenths.

Now, to find all numbers above 64, we observe the number 6 in the stem colum, then we count all leaf numbers in that level and above.

Observe that there are 13 values when 6 as tenth, but the first one doesn't count because its unit is 4, and we need all numbers ABOVE 64.

Therefore, there are 12 numbers above 64 which are:

65, 73, 74, 77, 87, 88, 91, 93, 93, 97, 99, 99.

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A bag contains exactly three red marbles, five yellow marbles and two blue marbles. If three marbles are drawn from the bag with

Studentka2010 [4]

Answer:

11/120

Step-by-step explanation:

Red = 3
Yellow = 5
Blue = 2

Possible options would be red or yellow as only two blue marbles.

<u>Probability of 3 red:</u>

3/10*2/9*1/8 = 1/120

<u>Probability of 3 yellow:</u>

5/10*4/9*3/8 = 1/12

<u>Probability of same three is:</u>

1/120 + 1/12 = 11/120

3 0

2 years ago

Represent the following sentence as an algebraic expression, where "a number" is the letter x. You do not need to simplify.

zloy xaker [14]

Answer:

The statement, one fifth of the square of a number is written as

$\frac{1}{5} {x}^{2}$

Hope this helps you

6 0

2 years ago

one light flashes every 2 minutes and another flashes every 7 minutes. If both lights flash together at 1pm, what is the first t

vovangra [49]

Light A flashes every 2 minutes while light B flashes every 7. The goal is to figure out when both lights flash at the same time and then figure out the other part later. You have to find the common multiples of 7 and 2. Meaning that you have to find out which number can they both be multiplied into. In this case, it is 14 because 7 can be multiplied by 2 to get 14 and 2 can be multiplied by 7. So if every 14 minutes they flash together at the same time, now you need to find out what time AFTER 3 will they both flash. You know that they both flashed at 1:00 so they will flash again at 1:14 and 1:28 and so on, but you need to find out when is the soonest they will flash after 3. 2 hours after the 1:00 flash will be 3:00 so that is 120 minutes. 120 minutes divided by 14 minutes comes to 8.5 but you dont need the decimal. Just simply multiply 14 by 8 and that comes to 112 minutes and if you add that to 1:00 you get 2:52. so they flashed at 2:52 so the next time they flash will be 14 minutes after 2:52. Sorry for the super long answer

6 0

3 years ago

I have to turn this in at 5:00 pls help!!!

Georgia [21]

It would be 2/5

There’s 12 bass fish and 30 fish overall

Which equals:
12/30

And then if you simplify 12/30 you get 2/5

3 0

3 years ago

17. Santino loves to rock different colored polo shirts every day. He recently wore the following colors:

qaws [65]

Answer:

The mode for the colors that Santino wore recently is Blue.

Step-by-step explanation:

The mode of a data set is the term or observation that presents most of the time.

The frequency table of different colored polo shirts worn by Santino is:

Color Frequency

Yellow 2

Blue 3

Green 1

Pink 1

Brown 1

Orange 1

Chartreuse 1

Black 1

Puce 1

The color Blue has the highest frequency, i.e. 3.

So, the mode for the colors that Santino wore recently is Blue.

3 0

3 years ago