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Svetllana [295]
2 years ago
7

Alana and two of her friends evenly split the cost of a meal. They determine that each person owes $14.68. How much was the enti

re cost of the meal?
Mathematics
2 answers:
Sedbober [7]2 years ago
7 0

Answer:

$44.04

Step-by-step explanation:

Alana and her two friends evenly split the cost of meal.

Total number of person = 3

They determine that each person owes the cost of meal = $14.68

So we will multiply each person's cost by 3

The cost of entire meal = 14.68 × 3

                                       = $44.04

The entire cost of the meal was $44.04

AlekseyPX2 years ago
6 0

Answer:

44.04 bucks

Step-by-step explanation:

14.68 times 3 because 1 plus 2 is 3 friends. And 14.68 is how much they EACH paid.

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Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar. David invested $220
S_A_V [24]

Answer:

The answer is 23 years.

Step-by-step explanation:

We will use the formula :

A=P(1+r)^{t}

Here P = 220

r = 3%

A = 400

Putting these values in the formula we get,

400=200(1+0.03)^{t}

2=1.03^{t}

Taking log on both sides,

ln(1.03)t=ln 2

t=\frac{ln(2)}{ln(1.03)}

t=23.44 or rounding to nearest, t=23 years

The graph of the function can be shown as below.

3 0
2 years ago
Read 2 more answers
Greg is trying to solve a puzzle where he has to figure out two numbers, x and y. Three less than two-third of x is greater than
Fittoniya [83]
Inequation 1: 

\frac{2}{3}x-3 \geq y

to plot the pairs (x, y) for which the inequation holds, draw the line y=\frac{2}{3}x-3

then pick a point in either side of the line. If that point is a solution of the inequation, than color that region of the line, if that point is not a solution, then color the other part of the line.

we do the same for the second inequation. Then the solution, is the region of the x-y axes colored in both cases.

inequation 2: 

y+ \frac{2}{3}x\ \textless \ 4

y\ \textless \ - \frac{2}{3} x+ 4



draw the lines 

i)  y=\frac{2}{3}x-3          use points (0, -3),  (3, -1)

ii)y=- \frac{2}{3} x+ 4       use points ( 0, 4),   (3, 2)


let's use the point P(3, 3) to see what region of the lines need to be coloured:

\frac{2}{3}x-3 \geq y  ; 
\frac{2}{3}(3)-3 \geq 3
2-3 \geq 3, not true so we color the region not containing this point


y+ \frac{2}{3}x\ \textless \ 4
(3)+ \frac{2}{3}(3)\ \textless \ 4
3+ 5\ \textless \ 4 not true, so we color the region not containing the point (3, 3)

The graph representing the system of inequalities is the region colored both red and blue, with the blue line not dashed, and the red line dashed.



4 0
2 years ago
Which of the following is NOT true when testing a claim about a​ proportion? Choose the correct answer below. A. Both the tradit
morpeh [17]

Answer: C. A conclusion based on a confidence interval estimate will be the same as a conclusion based on a hypothesis test.

Explanation: The One-Sample Proportion Test is used to assess whether a population proportion (P1) is significantly different from a hypothesized value (P0). This procedure calculates sample size and statistical power for testing a single proportion using either the exact test or other approximate z-tests.

To write a null hypothesis, first, start by asking a question. Rephrase that question in a form that assumes no relationship between the variables. In other words, assume a treatment has no effect. Write your hypothesis in a way that reflects this.

A null hypothesis is a hypothesis that says there is no statistical significance between the two variables. It is usually the hypothesis a researcher or experimenter will try to disprove or discredit. An alternative hypothesis is one that states there is a statistically significant relationship between two variables.

5 0
2 years ago
Suppose that the universal set is U={1,2,3,4,5,6,7,8,9,10}. Express each of the following subsets with bit strings (of length 10
Vladimir [108]

Answer:

0011100000

1010010001

0111001110

Step-by-step explanation:

As the question is not complete, Here is the complete question.

Suppose that the universal set is U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}. Express each of these sets with bit strings where the ith bit in the string is 1 if i is in the set and 0 otherwise.

a) {3, 4, 5}

b) {1, 3, 6, 10}

c) {2, 3, 4, 7, 8, 9}.

So, we need to express a) b) and c) into bit strings.

Firstly, number of elements in the universal set represent the number of bits in the bit string.

Secondly, 1 = yes element is present in both universal set as well as in sub set.

0 = No, element is not present in sub set but present in universal set.

Hence, we have:

a) Sub set {3,4,5} = 0011100000  (As there are 3 1's which means only 3,4,5 are present in both universal set and subset.

Similarly,

b) Sub set {1, 3, 6, 10} = 1010010001

c) Sub set {2, 3, 4, 7, 8, 9} = 0111001110

5 0
2 years ago
A triangular piece of rubber is stretched equally from all sides, without distorting its shape, such that each side of the enlar
OverLord2011 [107]

Answer:

The area of the enlarged triangle is 4 times the original area

Step-by-step explanation:

we know that

The scale factor is equal to divide the measurement of the length side of the enlarged triangle by the the measurement of the length of the corresponding side of the original triangle

In his problem

Let

x------> the length side of the original triangle

so

2x----->  is the length of the corresponding side of the enlarged triangle

scale\ factor=\frac{2x}{x}=2

scale\ factor> 1 -------> that means is increasing

The scale factor squared is equal to the ratio of the area of the enlarged triangle divided by the area of the original triangle

so

Let

m-------> the area of the enlarged triangle

n------> the area of the original triangle

r-------> scale factor

r^{2} =\frac{m}{n}

we have

r=2

substitute

2^{2} =\frac{m}{n}

m=4n

therefore

The area of the enlarged triangle is 4 times the original area

8 0
1 year ago
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