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3 years ago

Which expression is equivalent to x + y + x + y + 3(y + 5)?

Mathematics

2 answers:

elixir [45]3 years ago

3 0

Answer:

Step-by-step explanation:

Nadusha1986 [10]3 years ago

3 0

Answer:

Step-by-step explanation:

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A sculptor is designing her new triangular masterpiece. In her scale drawing, the shortest side of the triangular piece to be m

sergeinik [125]

Answer:

72cm

Step-by-step explanation:

6cm times 24cm divided by 2

4 0

3 years ago

You have an office building that is 600 square feet in area. What are two possible dimensions how your office could be construct

stepan [7]

Answer:

$20\ ft$ by $30\ ft$

$15\ ft$ by $40\ ft$

Step-by-step explanation:

In this problem I'm assuming the office is rectangular.

The area of rectangle is equal to

$A=LW$

where

L is the length of the rectangle

W is the width of the rectangle

In this problem we have

$A=600\ ft^{2}$

$600=LW$ ------> equation A

Find two possible dimensions of the office

case A) Assume a length side L and find the value of W in the equation A

For $L=30\ ft$

substitute in the equation and solve for W

$600=(30)W$

$W=600/30=20\ ft$

The dimensions are $20\ ft$ by $30\ ft$

case B) Assume a length side L and find the value of W in the equation A

For $L=40\ ft$

substitute in the equation and solve for W

$600=(40)W$

$W=600/40=15\ ft$

The dimensions are $15\ ft$ by $40\ ft$

8 0

3 years ago

Given the equation 3x + 7 = -4, which

Pavel [41]

Answer:

Subtraction Property of Equality

Step-by-step explanation:

you should subtract both side with 7 first.

7 0

3 years ago

What if the answer is wrong

stealth61 [152]

If the answer is wrong then the answer isn't right but it also isn't left hence making it wrong.

7 0

3 years ago

D = 8a The variable a represents the number of attendees, and the variable d represents the cost in dollars. At most how many at

suter [353]

Answer: At most 9 attendees can be there.

Step-by-step explanation:

Given equation: d = 8a , where a represents the number of attendees, and the variable d represents the cost in dollars.

To find : the number of attendees, if Will budgets a total of $72 for his graduation picnic.

72=8a

⇒ 9 = a [divide both sides by 8]

∴ a= 9

Hence, at most 9 attendees can be there.

4 0

2 years ago