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julia-pushkina [17]
3 years ago
5

PLEASE HELP 17 POINTS FOR ANYONE WHO CAN SOLVE ALL THESE

Mathematics
2 answers:
Alik [6]3 years ago
8 0

i know numer one is 19.80

faust18 [17]3 years ago
3 0
1) $19.18
2) $948.75
3)$39.49
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A class consists of 55% bots and 45% girls. It is observed that 25% of the class are boys and scored an A on the test, and 35% o
oksian1 [2.3K]

Answer:

0.1575

Step-by-step explanation:

Probability of picking a girl is 0.45 and probability of a girl scoring A is 0.35.

Therefore probability of a girl scoring A is 0.45*0.35=0.1575

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3 years ago
Write an equation for f-1(x) given f(x) = x^3 – 2.
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Step-by-step explanation:

Let f(x) be denoted by y,thus y= -3x+2

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3 years ago
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. Lola sells jewelry. She sold 6 necklaces.She sells each necklace for $9.She spent $14 on supplies to make the necklaces. Write
mixas84 [53]

Answer:

(6 necklaces x $9 per necklace) - $14 spent on supplies = profit for Lola

or (6 x 9) - 14 = profit for Lola

The actual profit is $40.

Step-by-step explanation:

First, you need to calculate how much money Lola made from selling jewelry. She sold 6 necklaces, and each one was sold for $9, so you can calculate the total sale proceeds by multiplying 6 x $9 = $54.

However, you then have to subtract the cost of supplies that Lola had to buy to make the necklaces, in order to find out how much money Lola actually made. Therefore, subtract $14 from the calculation above.

Therefore the final expression is: (6 x 9) - 14 = profit

Make sure to take into account order of operations when solving the equation (it's important to multiply 6x9 before you subtract out the 14). The actual profit for Lola comes out to $40.

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3 years ago
Help me I don't know what's this is about
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Step-by-step explanation:

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3 years ago
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3 years ago
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