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Akimi4 [234]
3 years ago
13

Martha estimated there were 92 marbles in a jar for a contest. The actual number of marbles in the jar was 114. What was the per

cent error of Martha's estimation?​
Mathematics
2 answers:
WARRIOR [948]3 years ago
7 0

Answer:

19%

Step-by-step explanation:

1-92/114

(sorry if im wrong)

Novay_Z [31]3 years ago
3 0

Answer:

I think that is 22%

Step-by-step explanation:

You might be interested in
X/13 - 1 = 5x/2 + 1/2<br>please answer the question pls pls pls pls ​
Morgarella [4.7K]

\huge\underline{\red{A}\blue{n}\pink{s}\purple{w}\orange{e}\green{r} -}

<u>the </u><u>given </u><u>expression</u><u> </u><u>can </u><u>be </u><u>solved </u><u>as </u><u>follows </u><u>~</u>

\frac{x}{13}  - 1 =  \frac{5x}{2}  +  \frac{1}{2}  \\

<u>taking </u><u>LCM </u><u>both </u><u>the </u><u>sides </u><u>,</u>

\frac{x - 13}{13}  =  \frac{5x + 1}{2}  \\

<u>on </u><u>cross </u><u>multiplying </u><u>,</u>

(x - 13)2 = (5x + 1)13 \\  \\ \implies \: 2x - 26 = 65x + 13

<u>let's</u><u> </u><u>now </u><u>gather </u><u>the </u><u>like </u><u>terms </u><u>at </u><u>either </u><u>sides </u><u>of </u><u>the </u><u>equation</u><u> </u><u>~</u>

65x - 2x =  - 26 - 13 \\  \\ \implies \: 63x =  - 39 \\  \\ \implies \: x =  \frac{\cancel{ - 39}}{\cancel{63}}

<u>on </u><u>simplifying </u><u>the </u><u>equation</u><u> </u><u>,</u>

\implies \frac{-13}{21}\\

hope helpful ~

8 0
2 years ago
Read 2 more answers
What is the distance between the points (4,9) and (14, -11)? Round to the
maks197457 [2]

Answer: 22.4

Step-by-step explanation:

The distance formula can be used to solve this problem.

D=\sqrt{(x_{2}-x_{1}  )^2+(y_{2}-y_{1}  )^2}

We can plug in our x and y values to find the distance.

D=\sqrt{(14-4)^2+(-11-9)^2}

D=\sqrt{10^2+(-20)^2}

D=\sqrt{100+400}

D=\sqrt{500}

D=22.4

Our distance between the points is 22.4.

7 0
4 years ago
PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!!
Mamont248 [21]

Answer: x < -4 and -4 > x

x < -4 would be one of the two options.

This means that any number less than -4 is a solution.

This is shown by drawing an open dot on -4 and then

drawing an arrow to the left shows all answer less tan 4.

-4 > x would be our second option.

We can change it to say x < -4.

All I did was changed the order of numbers and switched the sign.

So x < -4 is the same as the first option.

8 0
3 years ago
A garden snail moves 1/6 foot in 1/3 hour what is the unit rate
nevsk [136]

Answer: 2/6

Step-by-step explanation: cross multiply

7 0
3 years ago
Alejandro surveyed his classmates to determine who has ever gone surfing and who has ever gone snowboarding. Let A be the event
victus00 [196]

Answer:

{A and B are independent events}, P(A|B)=P(A)=0.16

Step-by-step explanation:

First of all we need to know when does two events become independent:

For the two events to be independent,  P(A|B)=P(A) that is if condition on one does not effect the probability of other event.

Here, in our case the only option that satisfies the condition for the events to be independent is  P(A|B)=P(A)=0.16.. Rest are not in accordance with the definition of independent events.

3 0
3 years ago
Read 2 more answers
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