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Nat2105 [25]
3 years ago
14

PLZZZZZZ HELP 61. Jill had the following scores on quizzes. 1 quiz: 1 3 quizzes: 2 4 quizzes: 3 4 quizzes: 4 1 quiz: 5 What is t

he mean score for Jill’s quizzes? Round to the nearest hundredth and show your work. Answer:
Mathematics
1 answer:
KIM [24]3 years ago
6 0
To find the mean add all the scores and divide your answer by the total amount of quizzes she took.  

Rounding to the nearest hundredth is the second number AFTER the decimal.  Look at the number to the right of the hundredths.  If it's five or higher, the number in the hundredths column increases by one.  If it's 4 or below, the number in the hundredths column stays the same
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10.2 = 0.6y what is y
AVprozaik [17]

Answer:

y = 17

Step-by-step explanation:

isolate the variable by dividing each side by factors that don't contain the variable.

6 0
3 years ago
Solve the system of equations:
Ahat [919]

Answer:

Step-by-step explanation:

z = 3

2y + z = 1

2y + 3 = 1        {substituting z =3}

2y = 1 -3

2y = -2

y = - 2/2

y = -1

2x +3y +2z = 13

2x + 3 * (-1) + 2*3 = 13      { {substituting z =3} and y = -1}

2x -3 + 6 =13

2x + 3 = 13

2x  = 13 - 3

2x= 10

x = 10/2

x = 5

8 0
4 years ago
A clock has a diameter of 16 inches. Which measurement is closest to the area of the clock in square inches? 804.25 in2 50.27 in
meriva

Answer:

200.96 in2

Step-by-step explanation:

Area of a circle = nr²

n = 3.14

r = radius

the diameter is the straight line that passes through the centre of a circle and touches the two edges of the circle.

A radius is half of the diameter

diameter = 2r

radius = 16 inches / 2 = 8 in

Area = 3.14 x 8² =  200.96 in²

3 0
3 years ago
a group a friends share 3 1/2 slices of cake. each friend get half a slice of cake. how many friends shared the slices of cake.
Serggg [28]

Answer:

7

Step-by-step explanation:

3×2

6+1

7

You multiple it by 2 since it is 1/2 and not a whole piece

7 0
4 years ago
Read 2 more answers
The prices of tickets for the local rock concert were $16 for Friday night and $28 for Saturday night. The total attendance for
dsp73
For thsi you need to think of 2 simulatneous equations=
16f + 28s= 24232
f + s = 1090
We need to find a way to subtract one equation from the other so you can multiply the bottom by 16
so you would get
16f + 28s = 24232
16f + 16s = 17440
Now you can subtract the second one from the bottom one to get
12s= 6792
s= 566
So there were 566 tickets sold on staurday so to find fridasy you can do 1090 -566, which is 524
so on friday night 524 were sold and on saturday there was 566 sold
5 0
3 years ago
Read 2 more answers
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