MATHEMATICS HIGH SCHOOL

Combine like terms.8 + 16r – 9r

A.
8 + 7r

B.
15r

C.
15

D.
8 – 7r

Answers

Answer 1
Answer: First, you subtract 16r by 9r, which gives you 7r, so that leaves you with 8 + 7r. You cannot add a normal number and a number with a variable, so that's all you can do, so your answer is A.

Related Questions

Given linear function g(x) = 5 - 2/3 xa) find g(9) ANDb) solve g(x)=7 for x
Which of the following is a rational number?Ο Α) πB) 1.425Oc) 50OD) -4
Aaron and Maria collected shells one morning at the beach. Maria had 3 times as many as Aaron, but they would have the same number of shells if Aaron had found 8 more and Maria had found 6 less. How many shells did Aaron collect?
A master plan is devised for
Create a list of steps, in order, that will solve the following equation. 1/4(x+5)^2-1=3

Joey and Armando live on the same st as the park. The park is 9/10 mile from Joey's home. Joey leaves home and walks to Armando's home. Then Joey and Armando walk 3/5 mile to the park. Write and solve an equation to find how far Joey walked to get to Armando's home.

Answers

Let's start by assuming Armando's house is between Joey's and the park. 

Let x be the distance Joey walked to Armando's house.

The park is 9/10 mile from Joey's home. Joey leaves home and walks to Armando's home. Then Joey and Armando walk 3/5 mile to the park. 

(9)/(10) = x + (3)/(5)

x = (9)/(10) - (3)/(5) = (9)/(10) -(6)/(10) = (3)/(10)

That's probably the answer they're looking for.  But what if the park is between Joey and Armando's houses or Joey is between the park and Armando?  (The latter isn't really possible with the given distances.)

Let a, b, c be the distances between three collinear points like we have here.  Our equation is really a few equations in one, something like

\pm a \pm b = \pm c

Let's get rid of the plus/minuses. Squaring,

a^2 + b^2\pm 2ab = c^2

\pm 2ab = c^2-a^2-b^2

4a^2b^2 = (c^2-a^2-b^2)^2

For us, that's a quadratic equation for c^2

4(9/10)^2(3/5)^2= (c^2-(9/10)^2 - (3/5)^2)^2

I'll skip right to the solutions,

c^2=(9)/(100) \textrm{ or } c^2=(9)/(4)


c=(3)/(10) \textrm{ or } c=(3)/(2)

We could have gotten the 3/2 just by adding 9/10+3/5 but this was more fun.

A basketball player gets 2 free-throw shots when she is fouled by a player on the opposing team. She misses the first shot 40% of the time. When she misses the first shot, she misses the second shot 5% of the time. What is the probability of missing both free-throw shots?

Answers

The probability of missing the first shot is 40%. When she misses the first shot, the probability of missing the second shot is very, very low, only 5%. That means that the probability of missing both shots must be much smaller than the probability of missing the first shot.
 
40/100 * 5/100
0.4 * 0.05
= 0.02
= 2%

The goal of a market economy is to

Answers

A market economy is an economic system where the prices of goods are and economic decisions are based on the collective interactions of the individual people in the economy and the businesses present. The goal of a market economy may be described as wanting to limit the government involvement in economic decisions.Hope this helps. Let me know if you need additional help!

Final answer:

A market economy primarily aims to efficiently meet consumer demand for goods and services, foster healthy competition amongst suppliers, and promote private enterprise, rewarding individuals for their ability to produce goods and services that society values.

Explanation:

The goal of a market economy firstly is to coordinate a process where firms aim to produce goods and services in the quantity, quality, and price that consumers want, making efficient use of resources. Secondly, it is designed to create an environment where competition amongst suppliers can take place, aiming to offer the best goods and services at the lowest prices, stimulating productive efficiency. Lastly, market economies are based on the principle of private enterprise, where personal income is driven by an individual's capacity to convert resources, particularly labor, into a product or service that society values.

Learn more about Market Economy here:

brainly.com/question/32447773

#SPJ5

Simplify (–x2 +5) – (3 – 4x2)

Answers

(-x^(2) +5)-(3-4 x^(2) )
To simplify this, use the FOIL method. First, Outer, Inner, Last.
First: Multiply the first numbers in each set of parentheses.
-x^(2) *-3=3 x^(2)
Outer: Multiply the two outermost numbers in the equation.
-x^(2) *-4 x^(2) =5 x^(4)
Inner: Multiply the two innermost numbers in the equation.
5*-3=-15
Last: Multiply the last numbers in each set of parentheses.
5*-4 x^(2) =-20 x^(2)
Then, we put them all together in an equation, from the highest exponent to the lowest, then highest prefix (number before the variable) to lowest.
5 x^(4) -20 x^(2) +3 x^(2) -15
And simplify.
5 x^(4) -17 x^(2) -15
when you subtract you have to change the signs so it would be -3+4x2
then you combine like terms to get 3x2+2 i am assuming the 2"s mean squared

ordered pairs in which of these formats do not have to represent a function? (Length of side of a square,perimeter of square)​

Answers

Answer: the answer is base of triangle, height of triangle

got it wrong because of that other guy answers was wrong

Answer:

perimeter of square

Step-by-step explanation:

Mandy is trying to subtract 7 − 12, and she has asked you for help. How would you explain the process of solving the problem to Mandy, using a number line?

Answers

Answer:

Answer in explanation

Step-by-step explanation:

We can use a number line to explain this subtraction.

The first thing to do is to locate the number 7 on the number line. This should be located to the right of the number line.

Then, since we are subtracting, we need to count left from the position of interest. So we will count 12 integers to the left of 7.

If things are right, we would land at -5

If it was a case of addition, we will need to keep counting right from the position of origin

Answer:

-5 am sorry Dear I ca'nt sed a pic , I didn't see the option
Other Questions
What is 5,339x6 equal to in this case
Sarah is twice as old as her youngest brother if the difference between their ages is 15 years how old is her youngest brother
Solve the equation. Check for extraneous solutions.
Is -6 a natural number