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melamori03 [73]
3 years ago
11

45 children attend preschool the number of two-year-olds is 1/2 the number of three-year-olds the number for your old is the sam

e as the number of three-year-olds
Mathematics
1 answer:
Mkey [24]3 years ago
6 0
There are 9 two-year-olds and 18 each of 3 and 4 year olds.

To solve this we could write and solve the equation below, letting x be the number of 3 and 4 year olds.

x/2 + x + x = 45
x + 2x + 2x = 90
5x = 90
x = 18

From here, we just divide 18 by 2 to get the number of 2 year olds.
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Tom [10]

Answer:

I found the table by an online search (it is below)

Sally has $7 to spend in candy.

The price of a chocolate bar is $1.50

The price of a lollipop is $0.75

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In the table, we have the following combinations.

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b) 3 chocolate bars and 4 gumballs, the price is:

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d) 2 chocolate bars, 2 lollipops and 8 gumballs, the price is:

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Reasoning: Alternate interior angle theorem

The angles shown are inside the parallel lines, so they are interior angles. They are also considered alternate angles because they are on alternating sides of the transversal cut. Alternate interior angles are congruent when we have parallel lines like this.

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