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3 years ago

Is step 3 correct or would I change 5/2 into a decimal?

Mathematics

2 answers:

Rzqust [24]3 years ago

8 0

Answer:

keep it man u will do ok just be careful with other problems

Step-by-step explanation:

I am Lyosha [343]3 years ago

6 0

Answer:

Good Job!!! You would keep it as a fraction. My teacher said to NEVER use decimals with problems like these.

Step-by-step explanation:

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Rectangle A is a scaled version of rectangle B. The dimensions of rectangle A are three times the dimensions of rectangle B. The

Firlakuza [10]

Answer:

1458 sq cm

Step-by-step explanation:

because each dimension of A is 3 tomes each dimension of B, that will mean that both the length and width of B are multiplied by 3 in order to get the length and width of A, so the area of B is length×width=162 and the area of A (in terms of B's dimensions) is 3xlength×3×width=9×length×width=9×162=1458 sq cm

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3 years ago

Joe asked the children in his class which flavours of ice-cream they like.

Leya [2.2K]

Answer:

a. 19

b. 14

Step-by-step explanation:

From the venn diagram, we see that:

9 children like only Vanilla

7 like vanilla and chocolate

12 like only chocolate, and

2 like neither chocolate nor vanilla

Thus:

a. Number of children that liked Chocolate ice-cream = those that like chocolate only + those that like both chocolate and vanilla = 12 + 7 = 19

19 children like chocolate ice-cream.

b. Number of children who do not like Vanilla ice-cream = those that like chocolate only + those that do not like neither chocolate nor vanilla = 12 + 2 = 14

14 children do not like vanilla ice-cream.

5 0

3 years ago

Shelton mixed cups of purple cabbage and cups of lettuce to make a big salad. Each day he eats of a cup of salad. Which expressi

uranmaximum [27]

Answer:

1/4 times 3/8= 3/4

Step-by-step explanation: or 0.09375 please mark me brainlest if its wrong so sorry

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3 years ago

The average college lecture hall (auditorium) can seat 60 students with a standard deviation of 21. Assume that a total of 60 le

fiasKO [112]

Answer:

The standard deviation of the sample mean is $\sigma _ {\= x } = 2.711$

Step-by-step explanation:

From the question we are told that

The mean is $\= x = 60$

The standard deviation is $\sigma = 21$

The sample size is $n = 60$

Generally the standard deviation of the sample mean is mathematically represented as

$\sigma _ {\= x } = \frac{\sigma }{\sqrt{n} }$

substituting values

$\sigma _ {\= x } = \frac{ 21 }{\sqrt{60} }$

$\sigma _ {\= x } = 2.711$

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3 years ago

1. a single standard number cube is rolled, what is the probability of getting 4 or 5?

True [87]

There are 6 sides on a standard number cube. Numbers are listed on it from 1-6. This being said, 4 and 5 together make up 2/6 of the cube. Since this fraction can be reduced, this leaves us with C. 1/3

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3 years ago