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zvonat [6]
3 years ago
5

7. In which step does a mistake first occur?

Mathematics
2 answers:
BartSMP [9]3 years ago
8 0

Answer:

8+2+

Step-by-step explanation:

dmitriy555 [2]3 years ago
6 0
PEMDAS is an acronym for the order of operations. Parentheses, exponents, multiplication, division, addition, subtraction.

For question 7:
8 + 2 + (3 x 3 -2)
I believe the mistake is in step 1. I believe it should be:
8 + 2 + (9 -2)

We go by order of operations from left to right.

For question 8, the mistake is in step 1. They divided 24 by 3 instead of adding. It should be:
(27 + 10) - 14 + 2
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Simplify 3n+6(-8n+9)
Sedbober [7]

Step-by-step explanation:

3n + 6( -8n + 9)

= 3n - 48n + 54

= - 45n + 54

Hope it will help

4 0
3 years ago
Read 2 more answers
What are all of the factors of 24 and 27
klasskru [66]

The factors of a number are <em>all of the positive whole numbers that go into it evenly</em>. For example, 2 is a factor of 6 because 6 ÷ 2 = 3, or equivalently, 6 = 2 x 3. Note that this naturally implies that every whole number has 1 and itself as a factor.

The numbers that go evenly into 24 are 1, 2, 3, 4, 6, 8, 12, and 24. For 27, those numbers are 1, 3, 9, and 27.

The <em>common factors </em>between two numbers are numbers that go into <em>both </em>numbers evenly. Looking through the lists for 24 and 27, we see that 1 and 3 are their common factors. The <em>greatest</em> common factor is, of course, the largest of these, so the greatest common factor of 24 and 27 is 3.

7 0
3 years ago
Apply the Pythagorean Theorem to find the distance between points B and C.
Lyrx [107]

10 units

6^+8^=X^

36+64=x^

100=x^

10=x


3 0
3 years ago
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A hardware dealer has 168kg of nails, if one nail weighs 0.25kg, how many nails he have?​
snow_tiger [21]

Answer:

He has 672 nails

Step-by-step explanation:

168/.25

7 0
2 years ago
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Find the unit rate for 50 miles on 2 1/2 gallons
Anarel [89]
Unit rate is miles per 1 gallon
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answer is 20mi/gal
6 0
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