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Ludmilka [50]
3 years ago
8

a principle estimated that 400 people attended the performance of the school play. after counting the tickets , he found that 42

3 people attended. What was the percent error in the principal's estimate?
Mathematics
1 answer:
WINSTONCH [101]3 years ago
6 0
The percent error of the principle is 5.4%
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Solve mathematics problem in photo please! :) First.
jonny [76]
Hello,

Answer B

if 3k+3<0 ==>|3k+3|=-3k-3

==>-3k-3>12
==>-3k>15
==>k<-5

if 3k+3>0 then |3k+3|=3k+3
3k+3>12
==>3k>9
==>k>3

3 0
3 years ago
8. The diagram of a living room is shown below. What fractions of the living room is covered by the rug?​
Airida [17]

Answer:

there is no diagram

Step-by-step explanation:

8 0
3 years ago
36 into the ratio 4:5​
dolphi86 [110]

Answer:

Step-by-step explanation:

Total share = 4 + 5 = 9

\frac{4}{9}*36=4*4=16\\\\ \frac{5}{9}*36=5*4=20

7 0
3 years ago
What is the value of x, given that PQ || BC? <br><br> A. 10<br> B. 5<br> C. 7<br> D. 8
Brums [2.3K]

Answer:

Option B x=5\ units

Step-by-step explanation:

we know that

If PQ || BC, then triangles APQ and ABC are similar

Remember that

If two figures are similar, then the ratio of its corresponding sides is equal

\frac{AP}{AB}=\frac{AQ}{AC}

substitute the values

\frac{9}{18+9}=\frac{x}{10+x}

solve for x

\frac{9}{27}=\frac{x}{10+x}\\ \\90+9x=27x\\ \\27x-9x=90\\ \\18x=90\\ \\x=5\ units

5 0
4 years ago
Please answer this correctly
MAVERICK [17]

Answer:

1:50 PM

Step-by-step explanation:

Left school at 10:38 AM,

took them 51 minutes,

38+51=89,

89-60=29,

so when they drove to the museum, it was 11:29 AM.

From here, they stayed at the museum for 1 hour and 26 minutes,

so they stayed at the museum until 12:55 AM since 29+26=55.

Now, it took them 55 minutes to drive back to the school,

so 12:55 plus another 55 minutes,

it's going to be 1:50 PM when Dale's class got back to school.

7 0
3 years ago
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