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MrRa [10]
3 years ago
7

Sonji paid $25 for two scarves, which were different prices. When she got home she could not find the receipt. She remembered th

at one scarf cost $3 more than the other. What was the price of the more expensive scarf?
A) $11
B) $12
C) $13
D) $14
Mathematics
1 answer:
Debora [2.8K]3 years ago
6 0
Its D.The other answers dont match
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What is the probability that a die will land on the number 5? Answer as a fraction only!
kenny6666 [7]

Answer:

66.66/100

Step-by-step explanation:

The probability of rolling a dice that lands on 5 is 4/6 (66.667%)

Recent studies show 5 is the most likley number to be rolled on a die

8 0
3 years ago
Read 2 more answers
Monica watch every day for exercise at a rate of 1 km every 20 minutes suppose medical walk in 1 km every 15 minutes how many me
Serga [27]

Answer:

Monica will walk a total of 3km in 60 minutes given that she walked 1km in 20 minutes

Step-by-step explanation:

The correct question is given below;

Monica walked every day for exercise at a rate of 1 kilometer every 20 minutes. At this rate, how many meters can Monica walk in 1 hour? EXPLAIN how you found your answer

solution;

Now in this question, given the number of kilometers Monica walks in 20 minutes, we are now told to find the number of kilometers she will walk in 60 minutes.

Now to get this, the easiest way to this is to use a cross multiplication as follows;

1km = 20 minutes

xkm = 60 minutes

Kindly remember/ recall that in an hour we have 60 minutes so it is necessary to make the conversion to the unit to achieve consistency. You might want to convert 20 minutes to hours too , but it is better to have it in minutes

Now let’s make the cross multiplication;

1 km * 60 minutes = x km * 20 minutes

xkm = (1km * 60 minutes)/20 minutes

xkm = 60 km minutes/20 minutes

xkm = 3km

6 0
4 years ago
The parallelogram shown below has an area of 30 units2.
Sauron [17]

Answer:

I think its 6 units

Step-by-step explanation:

The area is 30 units so therefore you would divide it by any side so therefore if you would do 30 divided by 5 you would get 6.

3 0
3 years ago
Solve for x, rounding to the nearest tenth if necessary.
Natalija [7]

Answer:

99

Step-by-step explanation:

hope this helps

6 0
3 years ago
. A firm produces a commodity and receives $100 for each unit sold. The cost of producing and selling x units is 20x + 0.25x 2 d
kirza4 [7]
So for each unit they get $100, so if they sell "x" units, they intake 100x, that's just the gross income, and therefore the Revenue.

Now, they have a cost of 20x + 0.25x² if they "x" units, now, bearing in mind that if you pluck out the costs out of the incoming revenue, what's leftover, is a surplus amount, namely the Profit.  Therefore, profit p(x) = revenue - costs, or  100x - (20x + 0.25x²), which is p(x) = -0.25x² +80x.

a)
now, what's the highest profit they can make?  check the picture below.

\bf p(x)=-0.25x^2+80x\\\\
-------------------------------\\\\
\textit{ vertex of a vertical parabola, using coefficients}\\\\
\begin{array}{lcclll}
p(x) = &{{ -0.25}}x^2&{{ +80}}x&{{ +0}}\\
&\uparrow &\uparrow &\uparrow \\
&a&b&c
\end{array}\qquad 
\left(-\cfrac{{{ b}}}{2{{ a}}}\quad ,\quad  {{ c}}-\cfrac{{{ b}}^2}{4{{ a}}}\right)
\\\\\\
\left( -\cfrac{80}{-0.50}~,~0-\cfrac{80^2}{-1} \right)\implies \left( \stackrel{\textit{quantity}}{160}~,~\stackrel{\textit{profit value}}{6400}  \right)

b)

well, if a tax is imposed on them, and say, they take it out of the revenue, then their new revenue is not 100x, is 90x, thus   \bf p(x)=-0.25x^2+70x

and you can use the same formula as above to get the x-coordinate for that vertex.

\bf p(x)=-0.25x^2+70x\\\\
-------------------------------\\\\
\textit{ vertex of a vertical parabola, using coefficients}\\\\
\begin{array}{lcclll}
p(x) = &{{ -0.25}}x^2&{{ +70}}x&{{ +0}}\\
&\uparrow &\uparrow &\uparrow \\
&a&b&c
\end{array}\qquad 
\left(-\cfrac{{{ b}}}{2{{ a}}}\quad ,\quad  {{ c}}-\cfrac{{{ b}}^2}{4{{ a}}}\right)
\\\\\\
\left( -\cfrac{70}{-0.50}~,~0-\cfrac{70^2}{-1} \right)

7 0
3 years ago
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