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UkoKoshka [18]
3 years ago
10

The ratio of adults to children on a train in 7:2. There are 245 adults on the train. Find the total number of people on the tra

in?
Mathematics
1 answer:
Kruka [31]3 years ago
5 0

Answer:

315 people

Step-by-step explanation:

Using the given ratio, we can figure out the number of children on the train by doing cross multiplication.

Let x = # of children on train.

7/2 = 245/x

7x = 490

x = 70 children

The total number of people = 70 + 245 = 315 people total

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vladimir1956 [14]
First one because when you subtract 7 u keep the var. x alone and isolate it.
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2 years ago
Your beginning balance on your lunch account is $55. You buy lunch for 1.75 everyday and sometimes buy a snack for $0.85 after 2
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3 years ago
Which function is quadratic?
PilotLPTM [1.2K]

Answer:

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step 2. so the question becomes is C a quadratic

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3 years ago
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Helen [10]

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