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lbvjy [14]
3 years ago
14

-1/2(7z+4) + 1/5(5z - 15)

Mathematics
1 answer:
saw5 [17]3 years ago
8 0

Step-by-step explanation:

-3.5z - 2 + 1z - 3

Solving like terms

-2.5z - 5

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Which of these is a unit rate. $3 for 3 hot dogs, $5 for a case of soda, $16 for 2 movie tickets, $8 for 6 cupcakes
blondinia [14]
$5 for a case of soda
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3 years ago
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Please answer quickly<br>expand and simplify: 4(5x-3y) (x-4y) -(3x-4y)(2x+3y)​
Gekata [30.6K]

Answer: 14x^2-93xy+60y^2 Hope that helps!

Step-by-step explanation:

1. Expand by distributing terms

(20x-12y)(x-4y)-(3x-4y)(2x+3y)

2. Use the Foil method:(a+b)(c+d)= ac+ad+bc+bd

20x^2-80xy-12yx+48y^2-(3x-4y)(2x+3y)

3. Use the Foil method : (a+b)(c+d)= ac+ad+bc+bd

20x^2-80xy-12yx+48y^2-(6x^2+9xy-8yx-12y^2)

4. Remove parentheses 20x^2-80xy-12yx+48y^2-6x^2-9xy+ 8yx+12y^2

5. Collect like terms (20x^2-6x^2)+(-80xy-12xy-9xy+8xy)+(48y^2+12y^2)

6. Simplify.

And your answer would be 14x^2-93xy+60y^2

5 0
3 years ago
Please help! I will mark the 1st answer as brainiest.
uranmaximum [27]

Answer:

256 m^2

Step-by-step explanation:

area = b x h

16 x 16 = <em>256</em>

both combined would be <em>512</em>

4 0
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Use the Binomial Theorem to expand each binomial (2x-1)^6
pantera1 [17]
64x^6 - 192x^5 + 240x^4 - 160x^3 + 60x^2 - 12x + 1
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3 years ago
Complete the solution of the equation find the value of Y when X equals -8.<br><br> 4x+9y=-14
lukranit [14]

Answer:

\large\boxed{y=2}

Step-by-step explanation:

In this question, we're going to solve the equation.

What we would do is plug in the given information in the right variable. In this case, we would plugin -8 to x, since x = -8

We are solving for y, so we would nee to find how much y = ?

Your equation should look like this:

4(-8)+9y=-14

Lets solve:

4(-8)+9y=-14\\\\\text{Multiply}\, 4(-8)\\\\-32+9y=-14\\\\\text{Add 32 to both sides}\\\\9y=18\\\\\text{Divide}\\\\y=2

When you're done solving, you should get y = 2

This means that y = 2

<h3>I hope this helped you out.</h3><h3>Good luck on your academics.</h3><h3>Have a fantastic day!</h3>
4 0
3 years ago
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