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Yuri [45]
3 years ago
10

The price of a visit to the dentist is $50 . If the dentist fills any cavities, an additional charge of, 100$ per cavity gets ad

ded to the bill.
If the dentist finds cavities, what will the cost of the visit be?
Write your answer as an expression.
Mathematics
2 answers:
frozen [14]3 years ago
6 0
The cost of the visit to the dentist can be expressed as the cost equals 100x+50.

The initial cost of the appointment would be $50; no matter how many cavities one has, they would still have to pay $50.

The cost of each cavity is represented as 100x, because each cavity costs $100. x represents the number of cavities, as we do not know how many cavities there are.
Tasya [4]3 years ago
4 0

Answer:

50+100x=?

Step-by-step explanation:

50 is the amount of money it is for a visit and the x represents how many cavities are being filled and the 100 is for how much it is per cavity to be filled.  For example if you needed 3 cavities filled then it would be 50+(100x3).

(Btw sorry if the equation for the step-by-step explanation is incorrect)

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Romashka [77]

Answer: second option

Step-by-step explanation: To solve this problem, we will need to plug in the value of “x” into our equation to see if it makes sense.

Let’s start by going in order.

-4.9 = -5.7 + 10.6 = 4.9

This will not be the answer because it’s positive 4.9 not negative.

Let’s go on to the last one. If we add positive 0.8 to negative 5.7 we will get the answer of -4.9 and this makes sense.

8 0
3 years ago
Read 2 more answers
he mean age of bus drivers in Chicago is greater than 54.4 years. If a hypothesis test is performed, how should you interpret a
Natalka [10]

Answer:

There is not sufficient evidence to support the claim μ > 54.4.

Step-by-step explanation:

1) Previous concepts

A hypothesis is defined as "a speculation or theory based on insufficient evidence that lends itself to further testing and experimentation. With further testing, a hypothesis can usually be proven true or false".  

The null hypothesis is defined as "a hypothesis that says there is no statistical significance between the two variables in the hypothesis. It is the hypothesis that the researcher is trying to disprove".

The alternative hypothesis is "just the inverse, or opposite, of the null hypothesis. It is the hypothesis that researcher is trying to prove".

2) Solution to the problem

On this case we want to test is \mu>54.4 and the system of hypothesi on this case are:

Null Hypothesis: \mu \leq 54.4

Alternative hypothesis:\mu >54.4

On this case is our decision is FAILS to reject the null hypothesis then we can conclude that we don't have enough evidence to support the claim at the significance level provided.  So the correct conclusion would be:

There is not sufficient evidence to support the claim μ > 54.4.

8 0
3 years ago
What is the y- intercept of a line that goes through the points (3,-2)& has a slope of -4?
yulyashka [42]

Answer:

I'm pretty sure that this is correct.

Step-by-step explanation:

this is the equation of a straight line that is generally written

y = m × x + q

m is the slope of the line and is the proportionality coefficient between y and x.

The larger m is, the more the line is hanging

q (-3) is the intercept with the Y axis and is the value you find if you put x=0 (this is the axis y equation)

similarly if you put Y=0 (that is the equation of X axis you find the intercept with X axis that is X= 3/2

graph{2x-3 [-10, 10, -5, 5]}

If I am wrong I am SO SO <em>Sorry.</em> But I hope that I <em><u>Helped!</u></em> :D

8 0
3 years ago
Find the area of the figure.
Marina86 [1]
132 in^2
10 x 10 = 100
(1/2)(10+6)(4) = 32
100 + 32 = 132
8 0
3 years ago
How many more equal angles does a square have than a rectangle?
Natali5045456 [20]
A square has four right angles and four equal sides.<span> It belongs to the set of polygons known as quadrilaterals, which are shapes with four sides.</span>
7 0
3 years ago
Read 2 more answers
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