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pochemuha
3 years ago
13

Your friend gave you a gift card to a new restaurant. After you spend $36$36 on dinner, there is a balance of $44$44 left on the

gift card. What was the original gift card amount?
Mathematics
2 answers:
JulsSmile [24]3 years ago
4 0
80 dollars was the original balance

Mars2501 [29]3 years ago
3 0

Answer:

80 dollars.

Step-by-step explanation:

To calculate this we just create a simple equation, where the total will be represented by x, so total will equal the remaining money + the spent money:

Total= Remaining `+ Spent

X=$44+ $36

x= $80

So the origina amount in the gift card was $80.

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Jean cost $45, they are now priced $40. find the percent of change from $45 to $40
Kisachek [45]
The percent of change is 9%
3 0
3 years ago
What would happen to the slope of the graph of y=2/3×-3 if the line were shifted 6 units up?
yaroslaw [1]

The slope wouldn't change, but the y-intercept would become 3 because you add -3 to 6

5 0
3 years ago
The equation V = 16300 (0.94)^t represents the value (in dollars) of a car t years after its purchase. Use this equation to comp
Dafna1 [17]

Solution:

Given:

V=16300(0.94)^t

The value of a car after t - years will depreciate.

Hence, the equation given represents the value after depreciation over t-years.

To get the rate, we compare the equation with the depreciation formula.

\begin{gathered} A=P(1-r)^t \\ \text{where;} \\ P\text{ is the original value} \\ r\text{ is the rate} \\ t\text{ is the time } \end{gathered}

Hence,

\begin{gathered} V=16300(0.94)^t \\ A=P(1-r)^t \\  \\ \text{Comparing both equations,} \\ P=16300 \\ 1-r=0.94 \\ 1-0.94=r \\ r=0.06 \\ To\text{ percentage,} \\ r=0.06\times100=6\text{ \%} \\  \\ \text{Hence, } \\ P\text{ is the purchase price} \\ r\text{ is the rate} \end{gathered}

Therefore, the value of this car is decreasing at a rate of 6%. The purchase price of the car was $16,300.

5 0
1 year ago
g Nationwide, a certain disease occurs only a small proportion of people (.000215). A certain town has 74,000 residents. Use the
Andrei [34K]

Answer:

The probability that the town has 30 or fewer residents with the illness = 0.00052.

Step-by-step explanation:

So, we have the following set of data or information or parameters given from the question above and they are; the number of people living in that particular society/community/town = 74,000 residents and the proportion of people that the diseases affected = .000215.

The first step to do is to determine the expected number of people with disease. Thus, the expected number of people with disease = 74,000 × .000215 = 15.91.

Hence, the probability that the town has 30 or fewer residents with the illness = 1.23 × 10^-7 × 15.91^30/ 2.65253 × 10^-32 = 0.00052.

Note the formula used in the calculating the probability that the town has 30 or fewer residents with the illness =  e^-λ × λ^x/ x!

8 0
3 years ago
I need help how to solve it mot the answer plz and thank u
jek_recluse [69]
The second one would be the answer. You want to plug in for this question. You can divide over the five leaving you with (x-2)^2 =25. Since you are squaring this answer, you want to get either 5 or negative five. Both -3 and 7 will do that.
4 0
3 years ago
Read 2 more answers
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