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jeka57 [31]
3 years ago
10

The ratio of red to black pens in a box is 1:3. If there are 480 pens in the box altogether how many black pens are in the box?

Mathematics
1 answer:
Setler [38]3 years ago
3 0

Answer: 320 black pens

Step-by-step explanation:

480 ÷ 3 = 160

160 red pens

Then you have

160 + 160 = 320 black pens

If you have any questions let me know! :)

Hope this helps!!! Good luck!!! ;)

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You are the crew chief of the Algebra 2 formula racing team. Your current tasla is to determine fuel consumption of both cars. C
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Answer:

                                         

Step-by-step explanation:

5 0
3 years ago
A can holds 4 golf balls. The diameter of each golf ball is 5 cm. What is the volume of the empty space inside the can?
forsale [732]

Answer:

Volume of the empty space in the can  is 327.05  cm^3

Step-by-step explanation:

Given:

Number of golf ball the can holds = 4

Diameter of the golf ball = 5 cm

To Find:

Volume of the empty space in the can = ?

Solution:

Step 1:  Finding the volume of one golf ball

Ball is shape of the sphere

So lets use the volume of the sphere formula

Volume of the  golf ball = \frac{4}{3}\pi r^3

Radius =\frac{5}{2} = 2.5 cm

Substituting the values

Volume of the  golf ball  

=\frac{4}{3} \pi \times(2.5)^3

=\frac{4}{3} \pi \times (15.625)

= \frac{4}{3} \times 49.06

= \frac{196.24}{3}

= 65.41

Step 2:  Finding the volume of empty space of the can

volume of empty space of the can =  volume of 5 golf ball

= 5 X 65.41

= 327.05

7 0
3 years ago
Can you draw trapezoid three right angles
Hunter-Best [27]
Its impossible to draw a trapezoid with just three right angles.

a trapezoid has 4 sides, which means all the angles inside the trapezoid must add up to 360 degrees.

if you have just 3 right angles (90x3), you already use up 270 degrees. Leaving you with just 90 degrees left, which is also a right angle. That means, there has to be four, if you have at least 3.

6 0
3 years ago
PLEASE HELP ASAP! :)
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One is 7 and the other is 8 because 7 squared is 49 and 8 squared is 64. 
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3 years ago
F(x)=x2+3x-5 and g(x)=x/4-6.g(x)=x/4-6
xenn [34]

Answer:

idk the answer but i use socratic by google to take pictures of the problems and find answers online, and also cymath.com is a really great place to get answers for math, i hope this helps!

Step-by-step explanation:

5 0
3 years ago
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