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Kryger [21]
3 years ago
9

keiko has seven colors of lanyard. she uses three different colord to make a keychain. how many different combiantions can she c

hoose?
Mathematics
2 answers:
ICE Princess25 [194]3 years ago
8 0
So in order to  answer you´re question i´m going to put every single convination on here right now (as numbers instead of colors from 1 to 7)
123
124
125
126
127
134
135
136
137
145
146
147
156
157
167
234
235
236
237
245
246
247
256
257
267
345
346
347
356
357
367
456
457
467
567
so the answer to you´re question is 36
i hope i helped
Drupady [299]3 years ago
7 0
She can make 12 different combinations.
If she used three different colors for the keychain, there's still 4 other colors left.
4 x 3 = 12
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The answer would be 3.8.

So, to get 3 to 4, you would have to multiply 3 by something to get to 4. So you would divide 4 by 3 and get 1.3. So then you would divide 5 by 1.3 to solve for k, since k times 1.3 equals 5.

5 ÷ 1.3 = 3.8.

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3 years ago
Which statement explains the type of function that is represented by the equation<br> y=x2 +9?
DENIUS [597]
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3 years ago
Mary is preparing for her college entrance exams in a practice test she answered 12 problems in 30 minutes at this rate how many
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Answer:

40 problems in 100 minutes

Step-by-step explanation:

This is a ratio problem.

You first divide 30 minutes by three to get how many problems she can do in 10 minutes. What you do to one side you do to the other side. So then, you should have 4 problems in 10 minute. Then, you multiply 10 by 10 and 4 by 10 to get 40 problems in 100 minutes.

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3 years ago
3+(-7)<br> solve for x help meee
garik1379 [7]

Answer:

3 + ( -7 )

7 - 3

= 4 is the answer

6 0
3 years ago
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HACTEHA [7]
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