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3 years ago

6

What is 18 out of 720 ? Write as a percent . Round to the nearest tenth

2 answers:

seraphim [82]3 years ago

8 0

Answer:

2.5%

Step-by-step explanation:

To find what percent a part is of the whole, divide the part by the whole and multiply by 100%.

18/720 * 100% = 2.5%

nika2105 [10]3 years ago

5 0

Answer:

18/720 =2.5% that is the answer

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Can someone please give me the answers to these 2 will add 40 points

Zielflug [23.3K]

Answer:

<h2>Q1. x = 17.1; y = 5.6</h2><h2>Q2. x = 9.7; y = 24.1</h2>

Step-by-step explanation:

Use sine and cosine.

$sine=\dfrac{opposite}{hypotenuse}$

$cosine=\dfrac{adjacent}{hypotenuse}$

Q8.

We have:

$opposite=y\\\\adjacent=x\\\\hypotenuse=18\\\\\alpha=18^o\\\\\sin18^o\approx0.309\\\\\cos18^o\approx0.9511$

Substitute:

$\dfrac{y}{18}=0.309$ <em> multiply both sides by 18</em>

$y=5.562\to y\approx5.6$

$\dfrac{x}{0.9511}=18$ <em>multiply both sides by 0.9511</em>

$x=17.1198\to x\approx17.1$

Q9.

We have:

$opposite=y\\\\adjacent=x\\\\hypotenuse=26\\\\\alpha=68^o\\\\\sin68^o\approx0.9272\\\\\cos68^o\approx0.3746$

Substitute:

$\dfrac{y}{26}=0.9272$ <em>multiply both sides by 26</em>

$y=24.1072\to y\approx24.1$

$\dfrac{x}{26}=0.3746$ <em>multiply both sides by 26</em>

$x=9.7396\to x\approx9.7$

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3 years ago

How many place does the decimal point move when you multiply a number by 10? In which direction

soldi70 [24.7K]

1 place to the right

eg, 10x1.23=12.3

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3 years ago

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Pls help me in these two little exercises about the slope.

den301095 [7]

Answer:

3) $y=\dfrac35x+\dfrac25$

4) a) $y=-2x+7$

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Step-by-step explanation:

<u>Exercise 3</u>

$-3x + 5y = 2$

$\implies 5y = 3x + 2$

$\implies y=\dfrac35x+\dfrac25$

<u>Exercise 4</u>

a) If L2 is parallel to L1, it has the same slope (gradient) ⇒ $m = -2$

If L2 passes through point (3, 1):

$y-y_1=m(x-x_1)$

$\implies y-1=-2(x-3)$

$\implies y=-2x+7$

So L2 = L1

b) If L3 is perpendicular to L1, then the slope of L3 is the negative reciprocals of the slope of L1 ⇒ $m = \dfrac12$

If L3 passes through point (-5, 2):

$y-y_1=m(x-x_1)$

$\implies y-2=\dfrac12(x+5)$

$\implies y=\dfrac12x+\dfrac92$

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3 years ago

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