Jay evaluated the expression 3x(3+12 dived by 3)-4. For his first step, he added 3+12 to get 15. What was Jay's error? Find the correct answer.

Answers

Answer 1

Answer: bidmas, division before addition3x(3+12/3)-4 = 3x(3+4)-4 = 21-4 = 17

Answer 2

Answer: he would get 11x because 3t12equels 15 devided by 3 eqals 5 x 3x eqales 15x minus 4 eqauls 11x

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How do you decrease 280 by 95%

Answers

multiply 280 by 0.95

280x0.95=266

subtract 266 from 280

280-266= 14

280 decreased by 95%=14

you multiply 280 by .95

What is the place value of the 5 in 5,675.321

Answers

The value of the 5 in 5,675.321 could be either five thousands or 5 ones...

Not sure which one so I put both... hope this helps. Let me know if not and / or you need any more help. :)

The value of 5 is Millions.

To help I will define all the numbers for you to help better understand.

5 is million, 6 is hundred thousands, 7 is ten thousand, 5 is thousand, 3 is tenths, 2 is hundredths, 1 is thousandths.

A towns population went from 25800 to 42600 in 15 years. What was the percent of change

Answers

Answer:

$\% Change = (|42600 -25800|)/(25800) x100 =65.116 \%$

Step-by-step explanation:

The percent of change respect a reference value is given by the following formula:

$\% Change = (|Final -Initial|)/(Initial) x100$

On this case the initial value is 25800 and the final value 42600. So we can replace into the formula and we got:

$\% Change = (|42600 -25800|)/(25800) x100 =65.116 \%$

So then the increase respect the initial value is 65.116%, and makes sense since:

$1.65116 *25800 =42600$

165.1162791...%
To find this answer, I divided 42,600 by 25,800 and got 1.651162791... I then multiplied it by 100 to convert it into a percent and got 165.1162791...%

The "..." after the number means that the numbers continue to go on but are essentially unnecessary.

In conclusion, when you multiply 1.651162791... you get 42,600.

What scale factor was used in the dilation

Answers

4 divide by 10 is 0.4

The answer is 0.4

Divide the image length M'P' over its corresponding preimage length MP

(length of M'P')/(length of MP) = 4/10 = 2/5 = 0.4

Answer: 0.4 which is choice C

The fact that the scale factor is less than 1 and its positive means that the image is smaller than the preimage (aka the figure shrinks). The result is positive because we don't have any reflections going on.

Is a triangle with the side lenths of 4mm, 11mm, 15mm a right triangle

Answers

The triangle with side lengths 4,11,15 does not even exist.
According to the Triangle Inequality Theorem, in order for the triangle to even exist, the sum of the two shorter lengths must be strictly greater than the length of the third side.
4 + 11 = 15.
15 is not greater than 15.

Find the unit rate for 219
heartbeats in minutes

Answers

3.65 is the answer ok?

3.65 kutekitty is correct

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