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user100 [1]
3 years ago
9

Describe and correct the error in finding the sum of the numbers.

Mathematics
1 answer:
Greeley [361]3 years ago
4 0
The error was when they changed the sets of parenthesis because it changed the problem completely
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Panel of judges was asked to judge the quality of different kinds of potato chips. The scatterplot and regression line below sho
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Step-by-step explanation:

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3 years ago
When a number is decreased by 25%, the result is 22. What is the original number to the nearest tenth?
Ilya [14]

The decrease is 25% so this means that 22 is 75% of the original number (100% - 25% = 75%)

Divide 22 by 75%:

22/ 0.75 = 29.3

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7 0
4 years ago
if a 6 ft tall tent cast a 10 ft long shadow the how long is the shadow that a 9 ft tall adult elephant casts? show work
olya-2409 [2.1K]
15ft

6/10 • 9/x

Cross multiply.

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5 0
3 years ago
Read 2 more answers
С
mafiozo [28]

Answer:

x = 12

Step-by-step explanation:

The shape ABCDEF is an irregular polygon.  

The sum of the interior angles of any regular or irregular polygon = (n - 2) x 180 (where n is the number of sides of the polygon).  

Therefore, the sum of the interior angles of shape ABCDEF = (6 - 2) x 180 = 720°

So to find the value of x, we need to add together all the interior angles and equal it to 720, then solve for x.

Before we do that, we need to determine angle F.

From inspection, we can see that angle F and 52° are a linear pair.  We know that a linear pair of angles add up to 180°, so F + 52 = 180  ⇒  F = 180 - 52 = 128°

Therefore:

                                           A + B + C + D + E + F = 720

(10x - 5) + 108 + (8x - 3) + (14x - 25) + 133 + 128 = 720

Collect like terms:

10x + 8x + 14x - 5 + 108 - 3 - 25 + 133 + 128 = 720

Combine like terms:

32x + 336 = 720

Subtract 336 from both sides:

32x = 384

Divide both sides by 32:

x = 12

8 0
3 years ago
Randomly distributing 45 pencils and 35 markers to his students. what is the probability that the first item he hands out will
Dominik [7]
If he hands out pencils will be 45/80 =
If he hands out markers will be 35/80
3 0
3 years ago
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