2 years ago

10 plus 10 divided and rounded to next 20

Mathematics

1 answer:

BartSMP [9]2 years ago

7 0

10.5 I looked it up OKAY

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28.

Artyom0805 [142]

Answer:

Step-by-step explanation:

30% * n = 15

Change to decimal form

.30 *n = 15

Divide each side by .30

.30n/.30 = 15/.30

n =50

The number is 50

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2 years ago

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sergeinik [125]

Answer:

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Step-by-step explanation:

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2 years ago

In the following credit card statement, what is the balance?

Brums [2.3K]

Answer:

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Step-by-step explanation:

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2 years ago

What is the distance between the following two points? (-5, -1) and (-8, -4)

liberstina [14]

The answer is -3 , -3

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2 years ago

Through: (-3,0), perp. to y = 3x - 1

Marrrta [24]

Answer:

$y=-\dfrac{1}{3}x-1$

Step-by-step explanation:

Given:

line y=3x-1

point (-3,0)

Write: equation of the line that is perpendicular to the given and passes through the point (-3,0)

Solution:

The slope of the given line is $m=3$

If $m_1$ is the slope of perpendicular line, then

$m\cdot m_1=-1\\ \\3m_1=-1\\ \\m_1=-\dfrac{1}{3}$

So, the equation of the needed line is $y=-\dfrac{1}{3}x+b.$

Find b. This line passes through the point (-3,0), so its coordinates satisfy the equation:

$0=-\dfrac{1}{3}\cdot (-3)+b\\ \\0=1+b\\ \\b=-1\\ \\y=-\dfrac{1}{3}x-1$

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2 years ago