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vfiekz [6]
3 years ago
15

2/3 of the pens in a box are blue. 1.2 of them are black. The rest of them are red. There are 36 more blue pens than red pens. H

ow many pens are there altogether? Also explain please, will make brainliest on the best answer.
Mathematics
2 answers:
Montano1993 [528]3 years ago
8 0
For every 5 red = to 15 blue 5:15
Phoenix [80]3 years ago
4 0

Answer:

Option B. For every 5 red pens, there are 15 blue pens.

Step-by-step explanation:

The statement expressed the ratio of the red pens to the total as 1 : 4.

This means that for every red pen in the box, there are 4 blue pens.

So, statement A is correct.

Let's skip B an look at other statements as well:

For C, the ratio will be 15 : 60 which translates to 1 : 4. So C is true.

Let's look at D.

This is an interesting one. The problem defines 18 as blue. So it means that 24 - 18 = 6

6 pens will be blue. Again 6 : 24 gives us 1 : 4. So D is true.

B gives us 5 : 24 which is not true.

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There are 30 names in a hat. If two names are picked without replacement, which expression shows the probability that Jack and J
Darya [45]

Answer: Choice C)

(1/30)*(1/29)

Explanation:

Jack has a 1/30 chance of being picked since he is 1 person out of 30 total. After his name is picked, and not put back, there are 30-1 = 29 names left. The chances Jill is picked is 1/29. The two fractions are multiplied to get the overall probability both are picked.

7 0
3 years ago
The answer and how to do it.
Kruka [31]

let x = orginal price of the shorts

$21 = x(100%-20%) * 1.05

$21 = x(80%) * 1.05

$21 = 0.8x * 1.05

Subtract 1.05 from both sides

$19.95 = 0.8x

Divide 0.8 from both sides

$24.9375 = x

So the orginal price of the shorts are about $24.94

4 0
3 years ago
The graph of a linear function intersects with the x axis at a point with an abscissa of 4 and with the y axis at a point with a
goldenfox [79]
We know that

points are
x intercept
A (4,0)

y intercept
B (0,11)

step 1
find the equation of a line
m=(y2-y1)/(x2-x1)--------> m=(11-0)/(0-4)------> m=-11/4

with m and the point B (0,11)
y-y1=m*(x-x1)y-11=(-11/4)*(x-0)---------> y=-(11/4)x+11

the answer is 
the formula of the function is y=-(11/4)x+11

see the attached figure

7 0
3 years ago
SOMEBODY PLEASE HELP ASAP!!! WILL GIVE BRAINLIEST
Lana71 [14]

Answer:

a- 130, 130, and 50

b- 7 and 10

7 0
3 years ago
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Answer:6

Step-by-step explanation:

5 0
3 years ago
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