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ivann1987 [24]
3 years ago
11

You estimate there are 45 marbles in a jar. There are actually 50. What is your percent error?

Mathematics
1 answer:
Katen [24]3 years ago
8 0

Answer:

10%

Step-by-step explanation:

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What is the answer to 2/3 of something equals 10
denis23 [38]
In math, when you see the word "of" it usually means "times".

So the question is:

        <u>2/3 times something = 10</u>

Multiply each side of the equation by 3 :

             2 times something = 30

Divide each side by 2 :

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7 0
3 years ago
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Damian works after school. Each
nadya68 [22]

Answer:

f(x) = 12x = 10

Step-by-step explanation:

We need a linear equation in the slope-intercept form.

y = mx + b

where y = total pay, m = hourly salary, x = number of hours worked, and b = y-intercept, or initial value

Let's look in the table.

1 hour: $22

2 hours: $34

The difference in pay between 1 hour and 2 hours is $34 - $22 = $12.

The difference in time between 1 hour and 2 hours is 1 hour.

In 1 hour he earns $12. That means the slope is 12.

We know he earns $22 for working a total of 1 hour.

Start at 1 hour and $22 on the table.

Subtract 1 hour from 1 hour to get 0 hours.

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That means for 0 hours he gets $10. b = 10

The equation is

y = 12x + 10

In function form, we have:

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5 0
3 years ago
Allison wants to buy a game that costs $120. She has saved $30 for the game. She earns $5 per hour babysitting.
sergey [27]

Answer:

Step-by-step explanation:

<em>Cost of game = $120</em>

<em>Current savings = $30</em>

<em>Rate for babysitting (per hour) = $5/hour</em>

<em></em>

<em>So, required equation is :-</em>

<em>120 = 5h + 30</em>

<em>5h = 90</em>

<em>h = 18</em>

<em></em>

<em>She must make $90 by babysitting for 18 more hours.</em>

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Which of the following measurements, in centimeters (cm), could be the lengths of the sides of a triangle? Select all that apply
monitta
The answer is
A cuz 3^2+4^2=5^2
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What is 1.56 rounded to the nearest tenth
jeka57 [31]

Answer:

1.6

Step-by-step explanation:

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