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nydimaria [60]
3 years ago
11

The expression 2(128 + 5) + V7 can be used to find the perimeter of the triangle. What does

Mathematics
1 answer:
Mama L [17]3 years ago
5 0
You do the things in the parentheses first then multiply them by 2
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Solve the system of linear equations below.
Mrac [35]

Answer:

I am not sure which one it is due to what you put in. I think it would be A.

x = 0

y = 2/3

Step-by-step explanation:

Step: Solve x + 6y= 4 for x:

x + 6y + −6y = 4 + −6y

x= −6y + 4

Step: Substitute −6y + 4 for x in 2x + 3y = 2:

2x + 3y = 2

2 (−6y + 4) + 3y = 2

−9y + 8 = 2

−9y + 8 + −8 = 2 + −8

−9y = −6

-9y/-9 = -6/-9

y = 2/3

Step: Substitute 2/3  for y in x = −6y + 4:

x = −6y + 4

x = -6 (2/3) + 4

x = 0

Sorry if it is long and confusing. But I hope this helps!

3 0
3 years ago
Five times the difference of twice a number and three, decreased by the sum of the number and eight, equals 13
denis23 [38]
5(2x-3)-(x+8)=13
10x-15-x-8=13
9x-23=13
9x=36
x=4
7 0
3 years ago
Read 2 more answers
Holly is earning money to buy a new bike. Her parents give her $20 to start and she sells lemonade for $1.50 a cup. a. write a l
slega [8]

Answer:

250= 1.50x + 20

Step-by-step explanation:

here 250 is the goal. 1.50 is how much she makes for a cup and x is the number of times to get x much. with how much her parents gave is 20. so we add the money her parents give and 1.50 times x to know the money shegets from all the lemonade selling.  graphing the equation but I cant do it on here

God Bless :>

4 0
3 years ago
Read 2 more answers
2^5/4=2^5/2^a=2^b=c please help
Rudiy27
You just need to equate the expressions to find the values for a,b and c. First, let's settle that 2^5/4=8, and 8 is 2^3. Also, an important tool here is the indicie rule:
\frac{ a^{m} }{ a^{n} } = a^{m-n}
1st expression: 2^5/4=8
2nd expression: It tells us that 2^5/2^a=2^3 (I know that this equals to 8 as all the expressions are equal therefore is the same as our first expression). Using the indicie law, this means that a=2
3rd expression: 2^b must equal to 8 as well, so b=3
4th expression: c=8 as all of the other expressions we have figured out equal to 8 
So a=2, b=3 and c=8
6 0
3 years ago
FernandoFernando buys juicejuice to make punchpunch for all hishis friends. HeHe buys 11 pintpint of juicejuice and one half 1 2
Elza [17]

Answer:

10 cups

Step-by-step explanation:

He buys 1 pint of juice and 1/2 gallon of juice.

We have to convert pint and gallon to cups and then add them.

1 pint = 2 cups

1 gallon = 16 cups

1/2 gallon = 1/2 * 16 = 8 cups

Therefore,

2 + 8 = 10 cups

Fernando buys 10 cups of juice.

8 0
3 years ago
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