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Tamiku [17]
2 years ago
11

What is 7\15 - 4\9 in fractions

Mathematics
2 answers:
Anni [7]2 years ago
8 0

\frac{7}{15}  -  \frac{4}{9}

You must find a common denominator to complete this equation.

Times 7 and 15 by 3. Times 4 and 9 by 5.

\frac{21}{45}  -  \frac{20}{45}

\frac{1}{45}

Alex17521 [72]2 years ago
5 0

Answer:

its 7/9

Step-by-step explanation:

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Write a word problem for 8x - 5 = 40
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Bob only has 40 dollars but he wants to buy a membership at the gym. It cost 8 dollars per month to receive a gym card. Bob went to the Gym in person so they gave him a 5 dollar off coupon. How many months can Bob buy?

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3. What is the scale factor of Figure B to Figure A?
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Answer:

2.5

Step-by-step explanation:

From the diagram, figure B was enlarged to obtain figure A.

The two figures are therefore similar.

The corresponding sides are in the same proportion. That constant value of the proportion is called scale factor.

It is given by:

k =  \frac{image \: length}{corresponding\:object \: length}

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4 0
3 years ago
What is 3.1 × 2.57? (6-6)<br> A 8.432<br> B 7.967<br> C 6.621<br> D 5
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Step-by-step explanation:

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A trapeziodal pyramid has a volume 2856insquared the height of the pyramid is 24in and the lengths of the 2 two bases of the tra
zalisa [80]
V = 1/3Bh
B = 1/2(b1 + b2)t

V = 1/3[1/2(b1 + b2)t] * h
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t = ?
V = 2856

Substitute:
2856 = 1/3[1/2(13 + 29)t](24)
2856 = 1/6(42)(24)t
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2856 = 168t
t = 2856/168 = 17 in height of the trapeziod
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3 years ago
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