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Oksi-84 [34.3K]
2 years ago
7

A school organised a concert for charity the graph and table showing information about 100 tickets sold

Mathematics
2 answers:
sdas [7]2 years ago
8 0

Answer:

The cumulative frequency table shows the marks some students got in a test. (a) On the grid, plot a cumulative frequency graph for this information. [2] ...

Step-by-step explanation:

My name is Ann [436]2 years ago
7 0

Answer:

£1481

Step-by-step explanation:

First find the cumulative frequency of the child tickets. You should get 58.

Then multiply this by the price of the child tickets.

58x12.50=£725

Then, to work out the number of adults, we subtract 58 from 100

100-58=42

Then multiply this by the price of adult tickets.

42x18=£756

Add both prices together to get your answer.

725+756=£1481

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A population of butterflies grows in such a way that each generation is simply 1.5 times the previous generation. There were 350
kap26 [50]

Answer:

378.5 or just 378

Step-by-step explanation:

This is a linear model with x representing the number of generations that's gone by, y is the number of butterflies after x number of generations has gone by, and the 350 represents the number of butterflies initially (before any time has gone by.  When x = 0, y = 350 so that's the y-intercept of our equation.)

The form for a linear equation is y = mx + b, where m is the rate of change and b is the y-intercept, the initial amount when x = 0.

Our rate of change is 1.5 and the initial amount of butterflies is 350, so filling in the equation we get a model of y = 1.5x + 350.

If we want y when x = 19, plug 19 in for x and solve for y:

y = 1.5(19) + 350

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Since we can't have .5 of a butterfly we will round down to 378

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