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tatyana61 [14]
3 years ago
14

What am I doing wrong here?

Mathematics
2 answers:
Yanka [14]3 years ago
7 0

Answer:

$879.19

Step-by-step explanation:

I'm not sure how you got that, but here's what I did.

To calculate tax:

Cost before tax * Tax% = Tax

$815.95 * 7.75% = $63.24

To calculate cost after tax:

Tax + Cost before tax = Cost after tax

$63.24 + $815.95 = $879.19

evablogger [386]3 years ago
5 0
<h2>Answer:</h2>

<u>The answer is </u><u>879.1 </u>

<h2>Step-by-step explanation:</h2>

The original cost is $ 815.95

The cost rate is 7.75 %

The cost on the original cost will be 815.95 * 7.75/100 which comes out to be 63.23

So after adding the tax which is 63.23 to the original cost gives us 815.95 + 63.23 = 879.1

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Please help. What is the answer?
Gala2k [10]

Answer:

ASA

Step-by-step explanation:

The longest side is the same (denoted by the small line).

Assuming the red dot and the x mean the angles are the same, the triangles share two common angles.

As such, the triangles share one common side and two common angles. Hence ASA

6 0
3 years ago
Graph the function 2 3^sqrt x+2 +4​
Ghella [55]

Answer: b; y intercept between 8 and 4

Step-by-step explanation:

1. a; 2/3

2. b; 3, all real numbers except x=2

3. a; $.75

4. c; intercepting at (-3,-3)

5. b; 5

6. a; starts at 3

7. b; 1975

8. b; y intercept between 8 and 4

8 0
3 years ago
Suppose a new car is worth $30,000. You can use the function y=30,000(0.85)^x to estimate the car’s value after x years. What is
ANEK [815]
The decay factor here is 0.85, and it means the car’s value changes by 85% every year, or goes down by 15% every year.



The formula for exponential decay is y = a(1 - b)^x

y is the final amount.

a is the initial amount, which is $30,000 in this case.

(1 - b) is the decay factor, or the number the original value gets multiplied by each year, which is 0.85 here.

b is the percent decrease in decimal form. In this case, we can find it using the formula (1 - b) = 0.85. We soon find that b = 0.15, or 15%.

x is the number of years.
5 0
3 years ago
For their twentieth wedding anniversary, Richard and Sylvia had a party for several of their best friends. Things were going alo
kompoz [17]

Answer:

Richard is older

Step-by-step explanation:

We can set up an inequality for both statements.

Let r equal Richard's age and s equal Sylvia's age.

"I am older than my wife."

Since Richard is speaking, the inequality would look like this:

r > s

This means Richard is older than Sylvia.

"I am younger than my husband."

Since Sylvia is speaking, the inequality would look like this:

s < r

This means that Sylvia is younger than Richard.

We can flip one inequality to "see" them from the same perspective.

Let's use s < r

To make it so that we can see the relationship from Richard's perspective, flip the entire inequality.

s < r

to

r > s

The inequality from the first quote is identical to this one!

Therefore, Richard is older than Sylvia.

8 0
3 years ago
A cargo plane flew roundtrip from Smithtown to Johnsville. It took one hour less time to get there than it did to get back. The
iren [92.7K]

Answer:

13 hours

Step-by-step explanation:

Average speed = Distance traveled / time taken

                   ⇒ Distance = Average speed × Time

                                     d = s × t

For the first trip;

Average speed = 280 mph

                          d₁ = 280t₁                    ------(1)

where;

d₁ is the distance covered to get to the destination

t₁ is the time taken to get to the destination

For the second trip;

Average speed = 240 mph

                           d₂= 240t₂                     ------(2)

where;

d₂ is the distance covered on the way back

t₂ is the time taken on the way back

The trip is the same distance to and fro. Therefore,

                           d₁ = d₂                              

Substituting the equation for d₁ and d₂

                          280t₁ = 240t₂              ------(3)

It took one hour less time to get there than it did to get back, then,

                                 t₁ = t₂ - 1

                                 t₂ = t₁ + 1                ------(4)

Substituting equation (4) into  equation (3)

                               280t₁ = 240(t₁ + 1)

                               280t₁ = 240t₁ + 240

                               280t₁ - 240t₁ = 240

                               40t₁ = 240

                                   t₁ = 240/40

                                   t₁ = 6 hours

From equation (4)

                                   t₂ = t₁ + 1

                                   t₂ = 6 + 1  

                                   t₂ = 7 hours

The total time for the trip is t₁ + t₂ = 6 + 7

                                       = 13 hours    

7 0
3 years ago
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