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abruzzese [7]
3 years ago
9

Mildred has seven grades on her report card. The overall average of these grades is 77%. After looking more closely at her repor

t card, Addie realizes that her English grade was incorrectly recorded as 18% instead of 81%. What is Mildred’s actual report card average
Mathematics
1 answer:
KIM [24]3 years ago
6 0

Answer:

86

Step-by-step explanation:

Firstly,

Average = Sum/Number of Numbers

Since 7 grades' average is 77, so we can say:

77 = Sum/7

Hence, Sum = 77 * 7 = 539

Now,

81 - 18 = 63 [63 marks were recorded incorrectly. actual sum would be 63 more]

So,

Actual Sum should be 539 + 63 = 602

Actual Average = 602 / 7 = 86

Hence, actual report card average would be 86

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kiyo bought a pizza for 12.75 and four medium drinks to Pauli’s pizza. Define a variable and write an expression to represent th
Stels [109]

The total cost, if one drink costs $3 is $27.75

  • Let the cost of a pizza be x

  • Let the cost of a drink be y

If kiyo bought a pizza for 12.75 and four medium drinks to Pauli’s pizza, this expressed as x + 4y

Since a pizza costs $12.75, hence x = $12.75

The function becomes 12.75 + 5y

f(y) = 12.75 + 5y

To get the total cost if one drink costs $3, hence;

f(3) = 12.75 + 5(3)

f(3) = 12.75 + 15

f(3) = 27.75

Hene the total cost, if one drink costs $3 is $27.75

Learn more on function here: brainly.com/question/9418047

7 0
2 years ago
9
lawyer [7]

The 5 number summary are

Minimum = 10, Lower quartile = 11, Median = 12, Upper quartile = 17 and Maximum = 19

<h3>How to identify the 5 number summary?</h3>

The complete question is in the attached image

The 5 number summary of box plot are:

  • Minimum
  • Lower quartile
  • Median
  • Upper quartile
  • Maximum

Each of these summaries are represented by the vertical lines of the box plot

From the attached box plot, we have:

Minimum = 10, Lower quartile = 11, Median = 12, Upper quartile = 17 and Maximum = 19

Read more about 5 number summary at:

brainly.com/question/12490978

#SPJ1

4 0
2 years ago
Which of the follwing recursive formulas represents the same sequence
Firlakuza [10]

Answer:

The answer is B. The first number in the sequence is going to be 2 and the second is going to be 7. you can plug those numbers in the check your answer but I already did it lol. Hope this helps!!

4 0
2 years ago
In a state lottery, 28 balls are numbered 1-28. Eight of them are randomly selected without replacement. To win, you only need t
podryga [215]

Answer:

2/7

Step-by-step explanation:

Each time you play, you get 1 number. Since 8/28 numbers win, you have a 8/28 chance to win if you buy one ticket. 8/28 = 2/7

3 0
2 years ago
9-c=-13<br> What’s the answer
trapecia [35]
First you do -13+9. That equals -4.
Then bring down -c=-4 because there is a 1 in front of the c so -1c.
Next divide both sides by -1. The -c side cancels out so then your left with -4/-1.
That equals positive 4.
C=4
That’s ur answer.
7 0
3 years ago
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