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Mademuasel [1]
2 years ago
7

9. Ellie is making a batch of pancakes

Mathematics
1 answer:
Vikki [24]2 years ago
4 0

Answer:

Step-by-step explanation:

Maybe your questions has some wrong numbers in it?  but, going by what's in your questions ,  just  1 cup of flour   :/   seems too easy

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Someone please help me! ‘The value of X is...’
8_murik_8 [283]
This is called a double equation. If you solve for X, you would get 'any whole number.'
7 0
3 years ago
A new car battery is sold with a two-year warranty whereby the owner gets the battery replaced free of cost if it breaks down du
Mariana [72]

Answer:

4.01% probability that the battery will break down during the warranty period

Step-by-step explanation:

When the distribution is normal, we use the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this question, we have that:

\mu = 45, \sigma = 12

a. What is the probability that the battery will break down during the warranty period

Warranty of 2 years = 24 months. So this is the pvalue of Z when X = 24.

Z = \frac{X - \mu}{\sigma}

Z = \frac{24 - 45}{12}

Z = -1.75

Z = -1.75 has a pvalue of 0.0401

4.01% probability that the battery will break down during the warranty period

7 0
3 years ago
A lake was stocked with 80 trout, 20 bass, 70 walleye and 30 catfish. What is the probability that a fisherman catches a trout f
Lisa [10]
80/200. is the probability
3 0
3 years ago
Given P = 2 (l + b) when l = 15 and P = 50,<br> find b
Firdavs [7]

Answer:

b = 10

Step-by-step explanation:

P = 2 (l + b)

l = 15

P = 50

Substitute

50 = 2 (15 + b)

multiply

50 = 30 + 2b

subtract

20 = 2b

divide

b = 10

6 0
3 years ago
Read 2 more answers
If you multiply a number by 3 and then add 40, the result is the same as if you add 17 to the number and then multiply by 2. Wha
Finger [1]

Answer:

The number is -6

The second operation is -60

Step-by-step explanation:

Let the number be x.

Solving (a): The value of x

Operations 1:

Multiply by 3: 3x

Add 40: 3x + 40

Operations 2:

Add 17: x + 17

Multiply by 2: (x + 17) * 2

To find x, equate both operations.

3x + 40 =  (x + 17) *2

3x + 40 =  2x + 34

Collect like terms

3x - 2x = 34 - 40

x = -6

Solving (b):

Operations:

Subtract 9: x - 9

Multiply by 4: (x - 9) * 4

This gives:

(x - 9) *  4 = (-6 - 9) * 4

(x - 9) *  4 = -15 * 4

(x - 9) *  4 = -60

6 0
2 years ago
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