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MrRissso [65]
3 years ago
5

Equation A: 3 + 5 = 8

Mathematics
2 answers:
Setler79 [48]3 years ago
8 0

Answer:

2

Step-by-step explanation:

(3+5)/2=4

8/2=4

which is true

krok68 [10]3 years ago
7 0

Answer:

The answer is 2.

Step-by-step explanation:

Remeber to always use PEMDAS.

1. (3 + 5) / x = 4 - We do the addition in the parenthesis first.

2. 8 / x = 4 - We now want to find what x means, to do this we divide the answers by the number we already have.

3. 8 / 4 = 2 - Now we can do the initial equation with the number we found to test it.

4. 8 / 2 = 4 - Simple as that :)

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Answer:

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Because √ from the number can be only positive.

5 0
3 years ago
Tamara says she used the GCF to factor the expression 21x + 56xy as 7(3x + 8xy). Is she correct? Explain.
cestrela7 [59]

Answer:

Tamara  incorrectly factored the whole expression.

Step-by-step explanation:

Note that

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Mark in bold all common factors, then GCF(21x,56xy)=7·x=7x.

Thus,

21x+56xy=7x(3+8y).

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3 years ago
In the past year Jenny watched 44 movies that she thought were very good. She watched 55 movies over the whole year. Of the movi
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To solve this problem, we must divide the number of movies that Jenny thought were very good by the total number of movies she watched. This is because we are finding a percentage, which represents a part out of a whole that have a factor, which in this case is very good movies. First, we begin by dividing 44/55. Then, we realize that both the numerator and the denominator are divisible by 11, so if we divided them both by 11 that would simplify the fraction.

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Therefore, Jenny thinks that 80% of the movies she watched this year were very good.

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