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2 years ago

Tammy said the product of 5/7 and 1 1/4 is 1 3/4.

Mathematics

1 answer:

Anna11 [10]2 years ago

5 0

Answer:

Tammy is incorrect

Step-by-step explanation:

The product of 5/7 and 1 1/4 is,

(5/7) x (1 1/4)

turn the mixed number to a whole number.

1 1/4= 4/4 + 1/4 = 5/4

(5/7) x (5/4) = 25/28 which is approximately 0.8929

Tammy believes it equals 1 3/4

1 3/4 = 4/4 + 3/4 = 7/4 which is 1.75

0.8929 does not equal 1.75

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A group of vacationing gamblers were asked which casino games they had played to date. 5 gamblers said they played blackjack, ro

leonid [27]

Answer: There are 13 gamblers who played exactly two games.

Step-by-step explanation:

Since we have given that

Number of gamblers played black jack, roulette and poker = 5

Number of gamblers played roulette and poker = 8

Number of gamblers played black jack and roulette = 11

Number of gamblers played only poker = 12

Number of gamblers played poker = 24

Number of gamblers who played only roulette and poker is given by

$8-5=3$

Number of gamblers who played only black jack and roulette is given by

$11-5=6$

Number of gamblers who played only poker and black jack is given by

$24-(12+3+5)\\\\=24-20\\\\=4$

So, the number of gamblers who played exactly two games is given by

$3+6+4=13$

Hence, there are 13 gamblers who played exactly two games.

7 0

3 years ago

The sides of an equilateral triangle measure 0.2(10x+90)cm each. If the perimeter of the triangle is 612.6 cm, what is the side

Sedbober [7]

Answer:

204.2 cm

Step-by-step explanation:

equilateral means all sides are of equal length.

the perimeter of such a triangle is simply 3 times one of these sides.

so,

612.6 = 3×0.2×(10x + 90) = 0.6×(10x+90) = 6x + 54

6x = 558.6

x = 93.1

so, a single side is

0.2×(10×93.1 +90) = 0.2×(931 + 90) = 0.2×1021 = 204.2 cm

to check

3×204.2 = 612.6 = the original perimeter.

so, correct.

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3 years ago

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Mars2501 [29]

Answer:

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Step-by-step explanation:

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3 years ago

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Snezhnost [94]

Answer:

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3 years ago

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The price of a flash drive that regularly sells for $16 is increased by 15%. Write two different expressions to find the new pri

fgiga [73]

Answer:

16 × .15 and 16 × 15/100

Step-by-step explanation:

...

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3 years ago