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natulia [17]
3 years ago
9

If one container holds 55 balls, how many balls will nine containers hold? A. 395 B. 455 C. 355 D. 495

Mathematics
2 answers:
umka21 [38]3 years ago
5 0
You can either use a ratio, or just multiply. But, a ratio does lead to multiplying in this situation.
1 Container : 55 balls; This is the ratio for one container.
9 Containers : Y balls; This is the ratio we're trying to solve, y is the number we're trying to solve.
Since you're multiplying the container by 9, you need to multiply the balls by 9.
55×9
495.
So D. 495 balls are in 9 containers.
vivado [14]3 years ago
3 0
D, 495.

9 x 55 = 495, so nine containers can hold 495 balls.
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4 0
3 years ago
Chris has a collection of 20 baseball cards and Kyle has collection of 40 baseball cards. Chris is adding 3 baseball cards per m
UkoKoshka [18]

Answer:

11 months

Step-by-step explanation:

The initial number of baseball cards that Chris has is 20.

This is like the first term of a sequence.


If Chris is adding 3 baseball cards per month, then there will be a constant difference of 3.

The number of baseball cards after n months is given by the formula;

C_n=20+(n-1)3


\Rightarrow C_n=20+3n-3


\Rightarrow C_n=3n+17 where n\ge1


Similarly, Kyle initially has 40 baseball cards and adds one base ball card per month to  his collection;

The number of his baseball cards after n months is given by the formula;


K_n=40+(n-1)1


K_n=40+n-1


\Rightarrow K_n=n+39


To determine the number of months that will pass before Kyle and Chris have the same number of base ball cards, we equate both equations to get;






\Rightarrow 3n+17=n+39


We group like terms to get;

3n-n=39-17


\Rightarrow 2n=22


\Rightarrow n=11


Therefore Chris and Kyle will have the same number of baseball cards after 11 months.





3 0
4 years ago
HELP ME PLEASE im begging!!
adelina 88 [10]

Answer:

x = 40

Step-by-step explanation:

As the Corresponding angles are equal

4x - 50 = 2x + 30 \\ 4x - 2x = 50 + 30 \\ 2x = 80 \\  \frac{2x}{2}  =  \frac{80}{2}  \\ x = 40 \degree

Hope this helps you.

Let me know if you have any other questions :-)

4 0
3 years ago
Read 2 more answers
A circle has a diameter of 4 meters.
Slav-nsk [51]

Answer:

Step-by-step explanation:

r = d/2

r = 4/2

r = 2

pi = 3.14

Circumference = 2 * pi * r

Circumference = 2 * 3.14 * 2

Circumference = 12.56

Area = pi r^2

Area = 3.14 * 2^2

Area = 4 * 3.14

Area = 12.56

7 0
3 years ago
Dan buys candy that cost $7 per pound . he will buy at most 6 pounds of candy . What are the possible amounts he will spend on c
Komok [63]

Answer:

About $42

Step-by-step explanation:

8 0
3 years ago
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