Help asap grade 5 math help fast help quick !!!

Mathematics

2 answers:

Lady_Fox [76]2 years ago

8 0

The answer is b and d because they are both greater

Alja [10]2 years ago

7 0

Answer:

B and D

Step-by-step explanation:

$\frac{5}{6}$ × 13 = $\frac{5(13)}{6}$ = $\frac{65}{6}$ = 10 $\frac{5}{6}$ < 13

4 × 13 = 52 > 13

$\frac{3}{4}$ × 13 = $\frac{3(13)}{4}$ = $\frac{39}{4}$ = 4 $\frac{3}{4}$ < 13

$\frac{10}{10}$ × 13 = 1 × 13 = 13

Band D are equal to or greater than 13

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If a test has 95 questions how many points would each question be worth?

natita [175]

100/95= 1.05. Each question worth 1.1 rounded. You could miss 19 but if you miss 20 you go under 80.

7 0

3 years ago

In a recent contest, the mean score was 210 and the standard deviation was 25. a) Find the z-score of John who scored 190 b) Fin

denpristay [2]

Answer:

a) $Z = -0.8$

b) $Z = 2.4$

c) Mary's score was 241.25.

Step-by-step explanation:

Problems of normally distributed samples can be 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 problem, we have that:

$\mu = 210, \sigma = 25$