3 years ago

No. 4 please help, what’s a forty proportional?

Mathematics

1 answer:

jok3333 [9.3K]3 years ago

6 0

Answer:

a/b = c/d --> d = b*c/a

d is the forth proportional

a) d = 2*3/1 = 6

b) d = 3*4/0.5 = 24

c) d = b*5/a = 5*b/a

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grigory [225]

Answer:

x = 9

Step-by-step explanation:

Since the figures are similar then the ratios of corresponding sides are equal, that is

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12(x - 1) = 96 ( divide both sides by 12 )

x - 1 - 8 ( add 1 to both sides )

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2 years ago

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Plz help me solve this

posledela

1.-28×-28×-28+13×13×13+16×16×16

=21,952+2,197+4,096

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2.12×12×12+-7×-7×-7+-5×-5×-5

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Answer:

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Step-by-step explanation:

First: 7x2=14

Then: 114-14=100

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-Mercury

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The correct answer is 25C9

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