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Sidana [21]
2 years ago
9

There are 7 pens in a bag. Four of the pens are blue and the other 3 are red. What's the probability of pulling out a red

Mathematics
2 answers:
GarryVolchara [31]2 years ago
6 0

Answer:

3/7

Step-by-step explanation:

P(red) = number of red pens / total number of pens

         = 3/7

ycow [4]2 years ago
5 0

Answer:

3/7

Step-by-step explanation:

Total pens = 7

Blue pens = 4

Red pens = 3

probability of pulling out a red pen

= No of red pens / Total pens

= 3/7

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Do #6 for me pls and thank you!​
emmainna [20.7K]

Answer: function a

Hope this helped!

4 0
3 years ago
Sara has 24 sweets
Tresset [83]
<h2>Hello!</h2>

The answer is:

The expression for the number of sweets that Sara and Tim have now, are:

Sara=(17-x)Sweets\\\\Tim=\frac{(24+x)Sweets}{2}

<h2>Why?</h2>

To write the expressions for the number of sweets that Sara and Tim have now, we need to follow the next steps:

Sara starts with 24 sweets and Tim starts with 24 sweets

Sara=24 Sweets\\Tim=24 Sweets

Then, Sara gives Tim x Sweets

Sara=(24-x)Sweets\\Tim=(24+x)Sweets

Then. Sara eats 7 of her Sweets

Sara=(24-x-7) Sweets\\Sara=(17-x )Sweets\\Tim=(24+x) Sweets

Then, Tim eats half of his sweets

Sara=(17-x)Sweets\\\\Tim=\frac{(24+x)Sweets}{2}

So, the expression for the number of sweets that Sara and Tim have now, are:

Sara=(17-x) Sweets\\\\Tim=\frac{(24+x)Sweets}{2}

Have a nice day!

8 0
3 years ago
For Madeline's lemonade recipe, 3 lemons are required to make 6 cups
expeople1 [14]

Answer:

1/2 lemon per 1 cup

Step-by-step explanation:

6/6=1

3/6=1/2= .5 lemon

6 0
3 years ago
A flagpole is located at the edge of a sheer y = 70-ft cliff at the bank of a river of width x = 40 ft. See the figure below. An
Gnom [1K]
I would solve this using tangents.  Let h be height of flagpole.
Set up 2 right triangles, each with a base of 40.
The larger triangle has height of "h+70"
Smaller triangle has height of 70.

Now write the tangent ratios:
tan A = \frac{h+70}{40}  , tan B = \frac{70}{40}

Note: A-B = 9
To solve for h we need to use the "Difference Angle" formula for Tangent
tan (A-B) = \frac{tanA - tanB}{1+tan A  tan B}
Plug in what we know:
tan(9) = \frac{ \frac{h+70}{40} -  \frac{70}{40}}{1+ (\frac{h+70}{40})(\frac{7}{4})}
tan (9) = \frac{ \frac{h}{40}}{ \frac{7h +650}{160}} = \frac{4h}{7h+650}
h = \frac{650 tan(9)}{4-7 tan(9)}
h = 35.6
7 0
3 years ago
69, 62, 64, 67, 62, 64, 63, 65, 60, 64<br> 1. Find the mean, median, and mode
marta [7]
First order them from the smallest number 60
to the biggest number 69

Mean:582.4

Median:64

Mode:62 and 64
4 0
3 years ago
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