MATHEMATICS MIDDLE SCHOOL

What two numbers added equal 40 but when subtracted equal 10? PLZ!!!!!!!!!!!!!!!!!!!! HELPPPPPPPPPPPPPPPPPPPP

Answers

Answer 1
Answer:

Answer:

25 and 15

You can easily make a system of equations:

x + y = 40

x - y = 10

Solving for x on equation 2 gets x = 10 + y.

Plugging in this into the first equation, you get 10 + y + y = 40

Thus, 10 + 2y = 40

y = 15.

Plugging this back into either equation gets x = 25.

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Use the intercepts to graph the equation 4x-2y=8 please help me solve and graph

Factor the expression 54x+81 using gfc

Answers

We can factor a binomial by taking out the gcf (common factor) . We can factor the binomial as following:

54x = 27 * 2x

81 = 27 * 3

Here, 27 is the common factor of both the terms. So, by taking out 27 as a common factor we will get,

54 x + 81

= 27 (2x + 3)

So, the factor form of the given expression is 27 (2x + 3)

Hope this helps you!
your answer will be 9

on monday the baker makes 36 blueberry muffins, whats the total number of muffins that the baker makes on monday

Answers

more than 36 likely. blueberries as only one kind of muffins that the baker has made we don't know what other kinds that have been made

Answer:

Step-by-step explanation:

about 36

450 is what percent of 600

Answers

450 is 75% of 600.

→ Why?

First of all, work out what 25% of 600 is.

25% of 600 is 150. Since 25% is 3 times smaller than 75%, the correct answer, you multiply 150 by 3 to get your answer.

And whaddya know! 150 × 3 = 450!

If 150 is 25% of 600, Now multiply 25% by 3 also to get what 450 is equal to.

25% × 3 = 75%

So, therefore, 450 is 75% of 600

↑   ↑   ↑   Hope this helps! :D

POD: 4 (2a + 3) = 28

Answers

Answer:

a = 2

Step-by-step explanation:

4 (2a + 3) = 28

4 * 2

= 8

4 * 3

= 12

8a + 12 = 28

28 - 12

= 16

8a = 16

16 / 8

= 2

a = 2

Final answer:

To solve the equation POD: 4(2a + 3) = 28, distribute, combine like terms, and isolate the variable 'a' by following the order of operations.

Explanation:

The given equation is POD: 4 (2a + 3) = 28. To solve this equation, we need to isolate the variable 'a'.

  1. First, distribute the 4 to both terms inside the parentheses: 8a + 12 = 28.
  2. Next, subtract 12 from both sides of the equation to move the constant term to the right side: 8a = 28 - 12 = 16.
  3. Finally, divide both sides of the equation by 8 to solve for 'a': a = 16/8 = 2.

Therefore, the value of 'a' that satisfies the equation is a = 2.

Learn more about Algebra here:

brainly.com/question/24875240

#SPJ12

A car painting company has determined that the painting time of cars is uniformly distributed between 25 and 105 minutes. What is the probability that it will take between 40 and 65 minutes for that company to paint a car

Answers

Answer:

P=(5)/(16)

Step-by-step explanation:

For a uniform distribution we have to:

P (X\leq x) =(x-a)/(b-a)   for x∈ (a, b)

P (X\leq x) =0}   for x\leq a

P (X\leq x) =1}   for x\geq b

In this case we have to:

a = 25 min and b = 105 min

We want to find:

P (40 \leq X \leq 65)

Then

P (x_1 \leq X \leq x_2) = P(X \leq x_2) - P(X \leq x_1)

P (x_1 \leq X \leq x_2)= (x_2 -x_1)/(b-a)

In this case:

x_2 = 65\n\nx_1=40

Therefore:

P (40 \leq X \leq 65)=(65 -40)/(105-25)

P (40 \leq X \leq 65)=(25)/(80)

P (40 \leq X \leq 65)=(5)/(16)

PLEASE HELP ME FAST!The balance in two separate bank accounts grow each month at different rates. The growth rates for both accounts are represented by the functions f(x)=3^x and g(x)=5x+25. In what month is the f(x) balance greater than the g(x) balance? Show your work!​
P.S Whoever gives me a good answer and shows their work I will make as Brainliest!

Answers

Answer:

From fourth month onwards, the growth rate of f(x) is greater than that of g(x).

Step-by-step explanation:

Given:

The growth rates of both bank accounts are given as:

f(x)=3^x\ng(x)=5x+25

Now, as per question, we need to find the value of 'x' when the value of f(x)>g(x). Or,

3^x>5x+25

Now, we can do this by checking the values of 'x' by hit and trial method.

Let x=1. The inequality becomes:

3^1>5(1)+25\n3>30(False)

Let x=2. The inequality becomes:

3^2>5(2)+25\n9>35(False)

Let x=3. The inequality becomes:

3^3>5(3)+25\n27>40(False)

Let x=4. The inequality becomes:

3^4>5(4)+25\n81>45(True)

Therefore, the value of 'x' for which f(x)>g(x) is 4.

So, from the fourth month onwards, the balance in f(x) becomes greater than g(x).

The graphical solution is shown below to support the same.

From the graph, we can conclude that after the 'x' value equals 3.4, the graph of f(x) lies above of g(x). Hence, f(x)>g(x) for x>3.4
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