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3 years ago

Alexa has c chocolates, and D

Mathematics

1 answer:

Simora [160]3 years ago

3 0

Answer:

Step-by-step explanation:

alexa has c chocolates and d drinks

Khloe has 4 fewer chocolates, but twice as many drinks

so if alexa has c chocolates, and khloe has 4 fewer, then khloe has c - 4 chocolates

and if alexa has d drinks, and khloe has twice as many, then khloe has

2d drink

so khloe's snack expression is : 2d + (c - 4)

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A punch bowl had 2\dfrac122 2 1 2, start fraction, 1, divided by, 2, end fraction liters of juice in it. Liam drank \dfrac13 3

8_murik_8 [283]

Answer:

5/6 liters.

Step-by-step explanation:

Given that:

Amount of juice in a punch bowl = 2 * 1/2 liters

= 5/2 liters.

Part of juice drank by Liam from the bowl = 1/3

Amount of juice drank by Liam =

= 5/2 * 1/3 = 5\6 liters.

4 0

4 years ago

Which is the percent composition of bromine in the compound nabr?

love history [14]

We are given a compound known to be Sodium Bromine (NaBr). This compound has a molecular weight of
Na=23 g/mol and Br=80 g/mol
NaBr=23+80= 103 g/mol

Assuming if we have 1 mol of NaBr, then we have 80 g of Bromine (Br). Calculating its percent composition in the total NaBr compound, we get

%Br= (80/103)*100=77.7%

Therefore, the answer to the question above is letter A.

8 0

3 years ago

(4-8):2-(9-12):3 =<br> Pls

Alenkinab [10]

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5 0

2 years ago

The mean weight of frozen yogurt cups in an ice cream parlor is 8 oz.Suppose the weight of each cup served is normally distribut

vaieri [72.5K]

Answer:

10.03% probability of getting a cup weighing more than 8.64oz

Step-by-step explanation:

Problems of normally distributed samples are solved using 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:

$\mu = 8, \sigma = 0.5$

What is the probability of getting a cup weighing more than 8.64oz

This is the 1 subtracted by the pvalue of Z when X = 8.64. So

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

$Z = \frac{8.64 - 8}{0.5}$

$Z = 1.28$

$Z = 1.28$ has a pvalue of 0.8997

1 - 0.8997 = 0.1003

10.03% probability of getting a cup weighing more than 8.64oz

4 0

3 years ago

9+3x2 10 points please

Hitman42 [59]

answer is 24

9+3=12

12×2=24

7 0

4 years ago