4 years ago

HEELLELEEPEELPELP Okay thanks :D

Mathematics

1 answer:

Hunter-Best [27]4 years ago

7 0

the answer is d 180 because it is 6 times six which equals 36 then multiply by 5 equals 180

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-2/5 - 4/5 + -9/10 = ???<br><br> Please help, will mark brainliest for answer with an explanation

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Answer:

Step-by-step explanation:

-2/5 - 4/5 + -9/10

= -2/5 - 4/5 - 9/10

= {-2(2) -4(2) - 9)/10

= (-4 - 8 - 9)/10

= -21/10

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3 years ago

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It costs a store $30 to buy a pair of bluetooth headphones. The store sells them at an 80% markup.

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Step-by-step explanation:

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3 years ago

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DedPeter [7]

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So far, Ricardo has scores of 13, 17, 19 and 21 points for the first four rounds of a dice game. What does he need the total sco

posledela

Answer:

40 points

Step-by-step explanation:

The score for the first four rounds of the game is 13, 17, 19, and 21 points.

Let $S_5$ and $S_6$ be the scores of the fifth and sixth games respectively in order to achieve an average score of 20 points per round for all six rounds.

$\text{Average score} = \frac{\text{Sum of the scores of all the rounds}}{\text{Total number of the rounds}}$

$\Rightarrow 20=\frac{13+17+19+21+S_5+S_6}{6}$

$\Rightarrow 20\times6=80+S_5+S_6$

$\Rightarrow S_5+S_6=120-80=40.$

Hence, the combined score of the fifth and sixth rounds are 40 points.

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4 years ago