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3 years ago

Homework answers plz

Mathematics

2 answers:

polet [3.4K]3 years ago

7 0

Answer:

10 1/2

Step-by-step explanation:

convert 3 1/2 into an improper fraction

3 1/2 = 7/2

if the flour is tripled that means

3 1/2 x 3

= 7/2 x 3

= (7x3) / 2

= 21/2 (convert to mixed fraction, by long division)

= 10 1/2

Alexxandr [17]3 years ago

3 0

Answer: 10.5

Step-by-step explanation:

Hello the answer is 10.5 you just have to multiply 3 1/2 times 3 and there's your answer

Have a great day hope this helps!:):):

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Simplify <br> 2/5(a+b)+3/5(a+c)

Sergeu [11.5K]

Distribute 2/5 and 3/5 into the ():
2/5(a+b)+3/5(a+c)

2/5 a+ 2/5 b+3/5 a+ 3/5 c

combine the like terms:
2/5 a+3/5 a= 5/5 a --> 1a --> a

new simplified equation:
a+2/5 b+3/5 c

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4 years ago

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Part A: If (7^2)^x = 1, what is the value of x? Explain your answer. (10 points)

Alex777 [14]

Answers:Part A: The value of x is 0.Part B: X can be any real number.
In Part A, you have to first evaluate 7^2. This is 49. Now, write the equation 49^x = 1. We know that if you raise any number to 0, then the answer is 1.
In Part B, you have to first evaluate 7^0, that is 1. Now, we have the equation 1^x = 1. In this case, 1 raised to any exponent is still only 1. Imagine 1^17, this would be 1 times itself 17 times or just 1.
Therefore any number will work in Part B.

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3 years ago

A restaurantis planning to make changes to its menu. In order to decide which potential menu items are most popular with the cit

Alex

Answer:

Simple random sampling survey method

Step-by-step explanation:

A simple random sampling is an unbiased survey technique Hence it will represent all the parts of the city's population.

In statistics, a simple random sample is a subset of individuals (a sample) chosen from a larger set (a population). Each individual is chosen randomly and entirely by chance, such that each individual has the same probability of being chosen at any stage during the sampling process

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3 years ago

The newspapers cover page is 3/8 text and photographs filled the rest if 2/5 of the text is an article about endangered species,

Papessa [141]

The fraction of text -3/8 of the cover page
From this fraction of text only 2/5 of the text is about endangered species
We are asked to find out what the fraction of the cover page is that covers endangered species
In this 2/5 of 3/8 is about endangered species
Therefore to obtain the answer we need to multiply the two fractions
2/5 * 3/8
Fraction of the cover page about endangered species is therefore = 2/5 * 3/8
= 0.15

4 0

3 years ago

Read 2 more answers

Use substitution to solve the system. 5X+3Y=22 Y=2X-11

Ad libitum [116K]

Answer:

See below:

Step-by-step explanation:

Hello! My name is Galaxy and I will be helping you today. I hope you are having a nice day.

We can solve this problem in two steps, Comprehending, and Solving/Checking our answers. I'll be starting off with Comprehending.

Comprehending

We can solve the problem with substitution by finding out what one variable is equal to in terms of the second variable.

This is what we would call System of Equations where we need to find the point where the lines hit.

We can do this either with Graphing, or Algebra. In this case, we need to use substitution, so it has to be Algebraically.

Now that we know how to solve it/what to do, we can start solving.

Solving

We can solve the problem by first replacing y with its correct value in terms of x. Since we know the two equations, we can begin solving.

$y=2x-11\\5x+3y=22$

We can solve it by inserting our y value into the y value of the second equation.

$5x+3(2x-11)=22\\5x+6x-33=22\\11x=22+33\\11x=55\\x=5$

Now that we know our x value, we can solve for y by inserting it into an equation.

$y=2(5)-11\\y=10-11\\y=-1$

Now that we have solved, we have gotten out point of (5,-1)

We can test this by inputting it into an equation. (Any of the latter).

$5(5)+3(-1)=22?\\25-3=22?\\22=22$

Now that we have checked our answer and it appears correct, we have gotten our answer of (5,-1).

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2 years ago

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