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tiny-mole [99]
3 years ago
12

NeNe tripled a cookie recipe for a party. The original recipe called for 4.25 cups of sugar. NeNe tripled the sugar amount and p

oured it into a mixing bowl. The mixing bowl got knocked over and 3.46 cups of sugar spilled. How many cups of sugar were left in the mixing bowl?
Mathematics
2 answers:
Tema [17]3 years ago
4 0

Answer:


Step-by-step explanation:

9.29

Nastasia [14]3 years ago
3 0
4.25*3 = 12.75-3.46 = 9.29 cups of sugar left.
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Evaluate 21 - n for n = 3 *<br><br> please help me with this
qwelly [4]

Answer:

18

Step-by-step explanation:

21-n; n=3

Substitute n for 3:

  • 21-3

Solve.

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4 0
3 years ago
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ONLY 1% OF PEOPLE GET THIS RIGHT AND One rabbit saw six elephants while he was going to the river. Each elephant saw two monkeys
Dvinal [7]

Answer:

31 animals

Step-by-step explanation:

1 rabbit + 6 elephants + 6*2=12monkeys + 12 parrots = 31 animals

5 0
3 years ago
The Slow Ball Challenge or The Fast Ball Challenge.
cupoosta [38]

Answer:

Fast ball challenge

Step-by-step explanation:

Given

Slow Ball Challenge

Pitches = 7

P(Hit) = 80\%

Win = \$60

Lost = \$10

Fast Ball Challenge

Pitches = 3

P(Hit) = 70\%

Win = \$60

Lost = \$10

Required

Which should he choose?

To do this, we simply calculate the expected earnings of both.

Considering the slow ball challenge

First, we calculate the binomial probability that he hits all 7 pitches

P(x) =^nC_x * p^x * (1 - p)^{n - x}

Where

n = 7 --- pitches

x = 7 --- all hits

p = 80\% = 0.80 --- probability of hit

So, we have:

P(x) =^nC_x * p^x * (1 - p)^{n - x}

P(7) =^7C_7 * 0.80^7 * (1 - 0.80)^{7 - 7}

P(7) =1 * 0.80^7 * (1 - 0.80)^0

P(7) =1 * 0.80^7 * 0.20^0

Using a calculator:

P(7) =0.2097152 --- This is the probability that he wins

i.e.

P(Win) =0.2097152

The probability that he lose is:

P(Lose) = 1 - P(Win) ---- Complement rule

P(Lose) = 1 -0.2097152

P(Lose) = 0.7902848

The expected value is then calculated as:

Expected = P(Win) * Win + P(Lose) * Lose

Expected = 0.2097152 * \$60 + 0.7902848 * \$10

Using a calculator, we have:

Expected = \$20.48576

Considering the fast ball challenge

First, we calculate the binomial probability that he hits all 3 pitches

P(x) =^nC_x * p^x * (1 - p)^{n - x}

Where

n = 3 --- pitches

x = 3 --- all hits

p = 70\% = 0.70 --- probability of hit

So, we have:

P(3) =^3C_3 * 0.70^3 * (1 - 0.70)^{3 - 3}

P(3) =1 * 0.70^3 * (1 - 0.70)^0

P(3) =1 * 0.70^3 * 0.30^0

Using a calculator:

P(3) =0.343 --- This is the probability that he wins

i.e.

P(Win) =0.343

The probability that he lose is:

P(Lose) = 1 - P(Win) ---- Complement rule

P(Lose) = 1 - 0.343

P(Lose) = 0.657

The expected value is then calculated as:

Expected = P(Win) * Win + P(Lose) * Lose

Expected = 0.343 * \$60 + 0.657 * \$10

Using a calculator, we have:

Expected = \$27.15

So, we have:

Expected = \$20.48576 -- Slow ball

Expected = \$27.15 --- Fast ball

<em>The expected earnings of the fast ball challenge is greater than that of the slow ball. Hence, he should choose the fast ball challenge.</em>

5 0
3 years ago
How do you solve the problem 7.8%15
snow_tiger [21]

Answer:

I suppose that's 7.8% of 15.

Step-by-step explanation:

7.8/100=0.078‬

0.078‬*15=1.17

7 0
3 years ago
I need help solving this 8.02-5.98
MissTica

8.02 - 5.98 = 2.04

this is your answer

5 0
3 years ago
Read 2 more answers
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