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Gelneren [198K]
1 year ago
13

A school assembly had 70 students in attendance, and 90% of them were first-graders. How many first-graders were at the assembly

?
Mathematics
1 answer:
natulia [17]1 year ago
4 0

Answer:

63

Step-by-step explanation:

Because, 100% of 70 would be 7. Now we have that number lets multiply it by 9 because of 90%. 9 x 7 = 63 first-graders

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Two separate linear functions are expressed by the graph and by the equation. Select all that apply.
Andre45 [30]

Answer:

First option: The slope is negative for both functions.

Fourth option: The graph and the equation expressed are equivalent functions.

Step-by-step explanation:

<h3> The missing graph is attached.</h3><h3> </h3>

The equation of the line in Slope-Intercept form is:

y=mx+b

Where "m" is the slope and "b" is the y-intercept.

Given the equation:

y=-4x-4

We can identify that:

m=-4\\b=-4

Notice that the slope is negative.

 We can observe in the graph that y-intercept of the other linear function is:

b=-4

Then, we can substitute this y-intercept and the coordinates of a point on that line, into y=mx+b and solve for "m".

Choosing the point (-2,4), we get:

4=m(-2)-4\\\\4+4=-2m\\\\m=-4

Notice that the slope is negative.

Therefore, since the lines have the same slope and the same y-intercept, we can conclude that they are equivalent.

4 0
3 years ago
Read 2 more answers
Which table represents a linear function?<br> Please hurry I have to finish this soon!
denis23 [38]

Answer:

C

Step-by-step explanation:

A linear function is the repeating of the same word. Therefore, C would be the correct option. Due to the order 3 9 3 9, this is a linear function. This is just the most logical answer. Please let me know if I am wrong. Sorry if I am :(

6 0
2 years ago
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Using the provided table, calculate the effective tax rate for a single taxpayer with a taxable income of $52,000.
barxatty [35]

Answer:

Option C is correct ,14.2%

Step-by-step explanation:

In order to determine the effective tax rate of a taxpayer with taxable income of $52,000,the starting point to determine how much in taxes the taxpayer pays as shown below:

First tax bracket=$9,525*10%=$952.5

Second tax bracket=$952.50+(12%*($38700-$9,525))

                                =$952.50+$3501

Third tax bracket(where the taxpayer belongs)=4453.5 +(22%*($52,000-$38,700))

third tax bracket tax=4453.5+$2926 =$7379.5

Since the total tax payable of  $7379.5   is now computed,

effective tax rate=tax paid/taxable income=7379.5/52000 =14.2%

7 0
3 years ago
Read 2 more answers
Christi earns $21 per hour working as a receptionist. If she works 19 hours per week, what is her weekly wage? A) $250 B) $299 C
Vikentia [17]

Since Christi earns $21 per hour, to find how much she earns by working 19 hours per week we need to multiply the hourly wage by the number of hours she works in a week:

21\times19=399

Her weekly wage is $399

Answer: D) $399

7 0
11 months ago
What transformation takes the graph of f(x)=3x+8 to the graph of g(x)=3x+6 ?
Nostrana [21]

Answer:

Translation 2 units downward

Step-by-step explanation:

If we start with the graph of f(x) = 3x + 8 and translate it 2 units downward, we'll end up with the graph of g(x) = 3x + 6.  Note:  8 - 2 = 6.


3 0
2 years ago
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