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natta225 [31]
2 years ago
11

Kirsten calculated the mean of 10 quiz scores. Later she was told there was an error in grading one of her quizzes. A quiz score

of 79 was revised to 89.
How will this grading revision affect the calculated mean of Kirsten's quiz scores?
Answer Options with 4 options
A. The mean will stay the same.
B. The mean will be 1 point higher.
C. The mean will be 5 points higher.
D. The mean will be 10 points higher.
Mathematics
2 answers:
inessss [21]2 years ago
3 0
The mean will be 5 points higher...so...c would be the answer!
rodikova [14]2 years ago
3 0
The answer would be D. The mean will be 10 points higher. The question said that the quiz score changed from a 79 to an 89 which is exactly 10 points higher than the previous score. I hope this answer helps. :)
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Hoochie [10]
Tricia should take the money that she already has saved no matter how little it is and split it evenly between savings and emergency needs
6 0
2 years ago
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At one gas station, gas costs $2.75 per gallon. Write an equation that relates the total cost, C, to the number of gallons of ga
melisa1 [442]

Answer:

The equation will be:

  • C = 2.75g

Step-by-step explanation:

Given that at one station, gas costs $2.75 per gallon.

Let 'g' be the number of gallons of gas purchases

Let 'C' be the total cost

Thus, the expression for total cost can be generated by multiplying the price per gallon by the number of gallons.

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6 0
1 year ago
Here are the ingredients to make 12 cupcakes.
scoundrel [369]

Answer:

Mark needs 2 kg butter, 2 kg caster sugar, 14 eggs, and 1.5 kg flour.

Step-by-step explanation:

Alright, first you double the number of kids, as Mark wants each kid to have two cupcakes, not one. (Then add 80+80 to get 160)

Now add the adults to children: 160+152=312

now divide by 12 to see how many batches of cupcakes he needs to make.

312÷12=26 So he needs to make 26 batches

Now here are the ingredients needed to make 12 batches of cupcakes (I multiplied the amount of each ingredient by 26)

5200 g (5.2 kg) butter, 5200 g (5.2 kg) caster sugar, 104 eggs, and 6500 g (6.5 kg) flour.

now make the measurements the same as Mark's ingredients (or the other way around)

(to save time I am not showing each one, just the normal ingredients turned into kg and compared)

5 kg butter < 5.2 kg butter

5 kg caster sugar < 5.2 kg butter

90 eggs < 104 eggs

5 kg flour < 6.5 kg flour

Now do a little subtraction.....

5.2 kg-5 kg = 2 kg butter is needed....

5.2 kg - 5 kg = 2 kg caster sugar is needed....

104 - 90 = 14 eggs needed....

6.5 kg - 5 kg = 1.5 kg flour needed....

And there you go!!! Hope this helped!!! :D

4 0
1 year ago
How do you round 38,288 to the nearest 100
lys-0071 [83]

Consider the number 38,288

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The place value to the extreme right of the number is ones, then tens, hundreds, thousands, ten thousands and so on.

So, the digit at hundreds place = 2

Consider the digit to the right of the hundred place which is '8', which is greater than 5.

Therefore, we will add '1' to the digit at hundreds place.

Therefore, the number 38,288 rounded to nearest hundreds is 38,300.

8 0
1 year ago
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Anna is an avid reader. Her generous grandparents gave her money for her birthday, and she decided to spend at most $150.00 on b
Effectus [21]

Answer:

The solutions for 3 questions are explained one after the other below.

Step-by-step explanation:

1).Let x be the number of paperback books that she buys,  y be the number of hardback books that she buys.

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for the second condition , i.e, she wants to purchase at least 12 books,

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2). the graph is in the attachment..

3). x,y are the two required solutions. where,

x =number of paperback books she buys.

y=number of hardback books she buys.

4 0
1 year ago
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