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AlladinOne [14]
4 years ago
11

If a represent the number of apples purchase at 15 centa each and B represents the number of banana purchase at 10 cents each, w

hich of the following representa the total value of the purchase
A. A+B
B. 2.5 (A+B)
C. 10A + 15B
D.15A + 10B
Mathematics
1 answer:
Vikki [24]4 years ago
6 0
Number of apples purchased = A
Cost of each apple = 15 cents
Then
The total cost of 15 apples = 15A
Number of bananas purchased = B
Cost of each banana = 10 cents
Then
Cost of 10 bananas = 10B
So
The total value of purchase = 15A + 10B
So the correct option among all the options given in the question is option "D",. I hope the procedure is clear enough for you to understand. Using this procedure it will be possible for you to answer similar questions with ease and without requiring any help from outside.
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Answer:

\cos \theta=-\dfrac{8}{17}

Step-by-step explanation:

Coordinates of Point b=(-8,15)

b lies on the circle whose equation is x^2+y^2=289

x^2+y^2=17^2

Comparing with the general form a circle with center at the origin: x^2+y^2=r^2

The radius of the circle =17 which is the length of the hypotenuse of the terminal ray through point b.

For an angle drawn in standard position through point b,

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Therefore, the angle is in Quadrant II.

\cos \theta=\dfrac{Adjacent}{Hypotenuse} \\$Adjacent=-8\\Hypotenuse=17\\\cos \theta=\dfrac{-8}{17} \\\cos \theta=-\dfrac{8}{17}

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Step-by-step explanation:

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Mary invests £120000 in a savings account.the account pays 1.5% compound interest per year work out the value of her investment
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Answer:

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Step-by-step explanation:

\frac{\mathrm{d} y}{\mathrm{d} x} =-ky

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