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Alekssandra [29.7K]
3 years ago
7

Julie built a tower of blocks that stood 22.5 cm tall. Each block is 1.5 cm tall.

Mathematics
2 answers:
Angelina_Jolie [31]3 years ago
5 0
B. There are 15 blocks in this tower. I divided the total height (22.5 cm), by the height of each block (1.5 cm) and got 15 blocks
Pavel [41]3 years ago
4 0
We must divide the total height by the size of the blocks to work out how many are in the tower
22.5 / 1.5 = 15 blocks
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I would use a chart to solve this problem.

This is a good wya to organize your information.

Down the left side, list the people involved.

I put Bob first and the mom second but the order doesn't matter.

Since Bob's mom is 3 times older than Bob, we can represent

Bob's age now as x and Bob's mom's age now as 3x.

Bob's age in 12 years will be x + 12 and Bob's mom's

age in 12 years will simply be 3x + 12.

Since the second sentence starts with in 12 years,

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In 12 years, Bob's mom's age, 3x + 12, will be,

equals, twice of her son's age, 2(x + 12).

Solving from here, we find that x = 12.

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The chart is attached below.

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Andrea constructed a triangle. Angle 1 and 3 are the same size and angle 2 has a measurement of 70 degrees. What is the measurem
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Answer:

Step-by-step explanation:

By triangle sum theorem,

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Answer:

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Step-by-step explanation:

Let's simplify step-by-step.

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Answer:

=x4+2x3−7x2−8x+13

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