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soldier1979 [14.2K]
3 years ago
15

2 oranges cost R1,45.how much will 12 oranges cost?​

Mathematics
1 answer:
xxMikexx [17]3 years ago
7 0

Answer:

R8.70

Step-by-step explanation:

2 oranges = R1.45

1 orange = 1.45 ÷ 2 = 0.725

12 oranges = 0.725 x 12 = 8.70

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kakasveta [241]
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How do you do this X-1/8=1/4
Neko [114]
X-1/8=1/4
Add 1/8 for both side
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3 years ago
For the point P(21,19) and Q(28.24), find the distance d(P,Q) and the coordinates of the
neonofarm [45]

Answer:

1. √74; 2. (24.5, 21.5)

Step-by-step explanation:

1. Distance

You could use the distance formula to calculate the length of PQ, but I prefer a visual approach, because it requires less memorization.

Draw a horizontal line from P and a vertical line from Q until they intersect at R (28, 19).

Then you have a right triangle PQR, and you can use Pythagoras' theorem to calculate PQ.

\begin{array}{rcl}PQ^{2} & = & PR^{2} + QR^{2}\\& = & 7^{2} + 5^{2}\\ & = & 49 + 25\\& = & 74\\PQ& = & \mathbf{\sqrt{74}}\\\end{array}\\\text{d(P,Q) = $\large \boxed{\mathbf{\sqrt{74}}}$}

2. Midpoint of line

The coordinates of the midpoint are half-way between the x- and y-coordinates of the end points.

For the x-coordinate, the half-way point is

(21 + 28)/2 = 49/2 = 24.5

For the y-coordinate,  the half-way point is

(19 +24)/2 = 43/2 = 21.5

The coordinates of the midpoint M are (24.5, 21.5).

5 0
4 years ago
Read 2 more answers
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jek_recluse [69]
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3 years ago
Use the formula to evaluate the infinite series. Round to the nearest hundreth if necessary.
zalisa [80]

Answer:

4

Step-by-step explanation:

The first term is the value of the term when n=1. It is 3. The common ratio is is the value being raised to the power of (n-1). It is 1/4. Put these numbers into the formula and do the arithmetic

S = 3/(1 -1/4) = 3/(3/4) = 3·4/3 = 4

The sum is 4.

3 0
4 years ago
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