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dolphi86 [110]
3 years ago
5

Simplify 2x + 5y - 8x + 12y

Mathematics
1 answer:
Ludmilka [50]3 years ago
4 0

Here, "simplify" means "combine like terms:

2x - 8x + 12y + 5y = -6x + 17y

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Anika [276]

Grace's height and the tree's height are related by equivalent ratios

The height of the tree is 2.00 meters

Grace's height is given as:

\mathbf{h = 1.65}

When she measured the length of the tree's shadow, we have:

\mathbf{l = 20.9m} --- the length of her shadow

\mathbf{L = 25.35m} --- the length of the tree's shadow

The height (H) of the tree is calculated using the following equivalent ratio

\mathbf{h:H = l:L}

Substitute known values

\mathbf{1.65:H = 20.9:25.35}

Express as fractions

\mathbf{\frac H{1.65} =\frac{25.35}{20.9}}

Multiply both sides by 1.65

\mathbf{H=\frac{25.35}{20.9} \times 1.65}

Simplify

\mathbf{H=2.00}

Hence, the approximated height of the tree is 2.00 meters

Read more about equivalent ratios at:

brainly.com/question/13513438

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3 years ago
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Rasek [7]
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3 years ago
Argelia is talking to her friend Adam about kayak fishing. She has been fishing many times on the Broad River, but she has never
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4 years ago
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2 years ago
"If a Japanese toy costs 20 yen and the yen per dollar exchange rate is​ 5, what is the dollar price of the Japanese​ toy?"
lapo4ka [179]
<h2>Answer:</h2>

The dollar price of the Japanese​ toy is: $ 4.

<h2>Step-by-step explanation:</h2>

Exchange rate--

It the value of currency of one country in term's of the currency of the other country.

Here it is given that:

The yen per dollar exchange rate is​ 5.

This means that:

 5 yen= $ 1

This means that:

(5×4) yen=$ (1×4)

i.e.

20 yen=$ 4

Now the cost of Japanese toy is: 20 yen

<em>Hence, the cost of the Japanese toy in dollars is: $ 4.</em>

4 0
3 years ago
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