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saveliy_v [14]
3 years ago
6

Martha estimated there were 91 marbles in a jar for a contest. The actual number of marbles in the jar was 113. What was the per

cent error of Martha's estimation?
A. 24.18%
B. 80.53%
C. 22%
D. 19.47%
Mathematics
2 answers:
lisabon 2012 [21]3 years ago
5 0

Answer:

D. 19.47

Step-by-step explanation:

91/113 = 80.53

100.00-80.53 = 19.47

babymother [125]3 years ago
4 0

Answer:

19.47% to the nearest hundredth.

Step-by-step explanation:

Value of the error = 113 - 91 = 22.

Percent error = (22/113) * 100

= 19.47.

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I need the equation and steps please!
serg [7]
Let d is the number of days of rental car
At Trinity's Tire World, $50 a day plus $75 fee: 50*d + 75
At India's Auto,  $35 a day plus $105 fee: 35*d + 105

To find out after how many days, they both cost the same

50*d + 75 = 35*d + 105
50d + 35d = 105 - 75
15d = 30
d = 30/15
d = 2

Answer: after 2 days, they both cost the same amount of money

Proof:

50*d + 75 = 50*2 + 75 = 100 + 75 = 175
35*d + 105 = 35*2 + 105 = 70 + 105 = 175

Hope that helps

3 0
3 years ago
The sum of three numbers is 8. twice the smaller is 2 less than the largest, while the sum of the largest and smallest is 5. use
Lorico [155]
X + Y + Z = 8
2x = Z - 2
X + Z = 5
X = 1
1 + Y + Z = 8
Y + Z = 6
1 + Z = 5
Z = 4
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4 0
4 years ago
Y-5=1/2(x-4) what are the coordinates
gogolik [260]

Answer:

The ordered pair (3, 4) is found in the coordinate system when you move 3 steps to the right on the x-axis and 4 steps upwards on the y-axis.

Step-by-step explanation:

hope this helped:)

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8 0
2 years ago
The button on Monica's shirt has a radius of 1 centimeter. What is the button's diameter?
erica [24]

Answer:

2 centimeters

Step-by-step explanation:

you multiply the radius by 2 to get the diameter

5 0
3 years ago
the hard-cover edition of a book cost 3 times as much as the paperback edition. Both editions together cost $26.60. Find the cos
posledela

Answer:

The Hardcover costs: $19.95 and the Paperback is: $6.65.

Step-by-step explanation:

6.65 * 3 = 19.95

19.95 + 6.65 = 26.60

4 0
3 years ago
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