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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 don't get this one too can someone explain it please
lukranit [14]

Answer:

15ab

Step-by-step explanation:

When you multiply out the square (p+q)^2, you get the trinomial ...

(p +q)^2 = p^2 + 2pq + q^2

Your binomial is (3a+2.5b), so you have ...

p = 3a

q = 2.5b

and the trinomial you get when you multiply it out is ...

(3a)^2 + 2(3a)(2.5b) + (2.5b)^2

= 9a^2 + 15ab + 6.25b^2

The first and last of these terms are shown on the right side of the given expression, so to finish out the identity, you need to replace * with 15ab.

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3 years ago
You triple your account balance by making a deposit. Then you withdraw $28.50 from your bank account. Now your account is overdr
Crazy boy [7]

Answer:

Your original account balance before you made the deposit is $6

Step-by-step explanation:

Let x = your original account balance.

You triple your account balance by making a deposit. This means

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Then you withdraw $28.50 from your bank account. This means that you have $(3x - 28.5) left.

Now your account is overdrawn by $10.50. This means you have withdrawn beyond what you have in your account. Your new account balance is -$10.5. Therefore,

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8 0
2 years ago
Write and graph an equation to represent the situation.
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equation is
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3 years ago
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neonofarm [45]

Answer:

22

Step-by-step explanation:

7 0
2 years ago
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The isosceles triangle has two sides with the same length. The base is one-half the length of a side. The expression which repre
gavmur [86]

Answer:

20 units

Step-by-step explanation:

s = 8

Perimeter = s + s + \frac{1}{2}*s

                = 8 + 8 + \frac{1}{2}*8

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               = 20 units

8 0
3 years ago
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