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zmey [24]
3 years ago
15

The ratio of the number of volleyball to the number of basketballs in the P.E room is 4:7 .there are 21 basketballs . How many v

olleyballs are there?
Mathematics
1 answer:
densk [106]3 years ago
8 0
Let volleyball be v and let basketball be b.

v : b = 4 : 7,      b = 21

v : 21 = 4 : 7

v/21 = 4/7

7*v = 4*21

v = 4*21/7

v = 4*3

v = 12

Volleyballs are 12

Hope this helps.
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20 points pls help no links
aniked [119]

Answer:

(-15, 13)

Step-by-step explanation:

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4( 6x + 7y = 1)

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3 0
3 years ago
A watch manufacturer believes that 60% of men over age 50 wear watches. So, the manufacturer took a simple random sample of 275
Gemiola [76]

Answer:

the percentage of men over 50 who wear watches are 61.82%

Step-by-no step explanation:

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i hope this is correct

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3 years ago
Barry is solving the equation 3x2 - 7x + 12 = 0 using the quadratic formula. He notices that, under the radical, the expression
AURORKA [14]
B, Imaginary solutions
4 0
3 years ago
Read 2 more answers
Tom sells baseball cards at 10 for 35 cents. Is that a better deal than 12 for 40 cents?
AVprozaik [17]
For either one of the deals, just find what one card equals and times it by how many cards the other equation has.

e.g. 0.35 cents divide by 10 = 0.035. And now, you times it by 12 since the other deal is 12 cards for 40 cents.

0.035 x 12 = 0.48

So, 10 cards for 35 cents is not the better deal.
7 0
3 years ago
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Help please also dont put links:(​
Zepler [3.9K]

Answer:  $61.50

Step-by-step explanation:

To do this you need to first find 18% of 75 which is 13.5 or $13.50 and then subtract that from the original price being $75 and you get $61.50

HOPE THIS HELPS ^^

3 0
2 years ago
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