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zzz [600]
2 years ago
9

Maria says the mean of the scores 7, 8, 3, 0, 2 is 5, because she added the scores and divided by 4. Is she correct? Explain why

or why not.​
Mathematics
1 answer:
Sergeu [11.5K]2 years ago
8 0

Answer:

She is wrong.

Step-by-step explanation:

The mean score is

7 + 8 + 3 + 0 + 2= 20

We then divide it by the number which is 5

20/5= 4.

Therefore, Maria is wrong.

This is because she divided by 4 instead of 5, as she didn't include the rational number 0.

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1960
shutvik [7]
Please make it a little more understandable
8 0
3 years ago
Kathleen makes bracelets to sell in a booth at a local store. She spent $62.30 on supplies to make bracelets for the next month.
vodomira [7]

Answer:

$105.20

Step-by-step explanation:

Given that :

Cost of materials = $62.30

Cost of booth = $25 / month

Price per bracelet = $5.50

Profit of 35 bracelet is sold next month =?

Profit = Revenue - Expenses

Revenue = $5.50 * 35 = $192.50

Expenses = $25 + $62.30 = $87.30

Profit = $192.50 - $87.30

= $105.20

4 0
2 years ago
The vertex of an isosceles triangle measures 15 degrees more than one of its base angles how many degrees are there in a base an
Alexxandr [17]
V=B+15
V+2B=180
Therefore:
3B+15=180
B=55
V=70

Check:
V+2B=180
70+2(55)=180
70+110=180
180=180. Checks. 
5 0
3 years ago
1/8y verbal expression
Brums [2.3K]

The algebraic expression 1/8y verbal expression is: one is divided by the product of 8 and a number.
 

To decipher the mathematical information in a problem, a verbal expression (or verbal model) uses words. From a verbal model,  an equation can often be written.

5 0
3 years ago
Determine if the triangles are congruent. If so, identify a theorem or postulate that proves them congruent.
Kitty [74]

Answer: a. ASA

Step-by-step explanation:

They are congruent by ASA beacuse 1 angle and 1 side are given to be congruent and there is also a pair of vertical angles that are congruent.

8 0
2 years ago
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