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Mariulka [41]
2 years ago
15

Which of the following is an equation?

Mathematics
1 answer:
Ahat [919]2 years ago
7 0

Answer:

B) y/9 = 3

Step-by-step explanation:

What makes an equation is that two things are equal. It consists of two expressions, one on each side of an 'equals' sign.

Only choice B does that

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Evaluate the expression.
MaRussiya [10]

Answer:

1/125

Step-by-step explanation:

5^-3

We know that a^-b = a/a^b

1/5^3

1/125

8 0
3 years ago
Read 2 more answers
The marching band sold gift wrap priced at $4.00 per roll for solid colors and $6.00 per roll for print patterns. If they sold 4
Alex Ar [27]

Answer:

The number of gift wrap rolls for solid colors sold was 270 and the number of gift wrap rolls for sprint patterns sold was 210

Step-by-step explanation:

Let

x ---> the number of gift wrap rolls for solid colors sold

y ---> the number of gift wrap rolls for sprint patterns sold

we know that

x+y=480 ---->x=480-y ----> equation A

4x+6y=2,340 ----> equation B

Solve the system by substitution

substitute equation A in equation B

4(480-y)+6y=2,340

solve for y

1,920-4y+6y=2,340

-4y+6y=2,340-1,920

2y=420

y=210

<em>Find the value of x</em>

x=480-y ----> x=480-210=270

therefore

The number of gift wrap rolls for solid colors sold was 270 and the number of gift wrap rolls for sprint patterns sold was 210

8 0
3 years ago
What 228,643 to the nearest hundred
Annette [7]
228,643 to the nearest hundered is 228,600.
3 0
3 years ago
Seven more than the product of a number and three is equal to four
vovangra [49]

Answer:

The Product is negative three (-3)

WHILE

The number is negative one (-1)

Step-by-step explanation:

Since seven more than the product gives 4.

This means 7 + product = 4

By subtracting 7 from both sides we get product as -3.

And since the product of the number and 3 is equal the product

This means number X 3 = -3

By dividing three from both sides you get -1.

6 0
3 years ago
Help! Pls I cant solve it help me with explanation also pls.
stich3 [128]

Given:

The expression is

\dfrac{2}{a-2}-\dfrac{8}{a^2-4}

To find:

The simplified form of the given expression.

Solution:

We have,

\dfrac{2}{a-2}-\dfrac{8}{a^2-4}

It can be written as

=\dfrac{2}{a-2}-\dfrac{8}{a^2-2^2}

=\dfrac{2}{a-2}-\dfrac{8}{(a-2)(a+2)}            [\because a^2-b^2=(a-b)(a+b)]

Taking LCM, we get

=\dfrac{2(a+2)-8}{(a-2)(a+2)}

=\dfrac{2a+4-8}{(a-2)(a+2)}

=\dfrac{2a-4}{(a-2)(a+2)}

=\dfrac{2(a-2)}{(a-2)(a+2)}

Cancel out the common factors.

=\dfrac{2}{a+2}

Therefore, the simplified form of the given expression is \dfrac{2}{a+2}.

7 0
3 years ago
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