Mathematics High School

What is the solution to the system of equations2x + 3y = 40andy=x + 10?
A
x = 2; y = 12
B
x = 4; y = 14
C x = 12; y = 2
D x = 14; y = 4

Answers

Answer 1

Answer:

A is the correct answer

Step-by-step explanation:

If you plug y=x+10 in for the Y variable you just have to solve by multiplying.

1.) It should look like this:

2x + 3(x +10) = 40

2.) You will distribute the three which will make the equation look like this:

2x + 3x + 30 = 40

3.) Add like terms. Then subtract 30 from both sides. Then divide 5 by both sides to get the variable x alone.

Hope that helps

Answer 2

A is the correct answer is the correcta answer

If you plug y=x+10 in for the Y variable you just have to solve by multiplying.

1.) It should look like this:

2x + 3(x +10) = 40

2.) You will distribute the three which will make the equation look like this:

2x + 3x + 30 = 40

3.) Add like terms. Then subtract 30 from both sides. Then divide 5 by both sides to get the variable x alone.

Related Questions

The equation y = 40x models the number of words that George can type in x
minutes. The table below shows the number of words that Patricia can type in
different amounts of time.
A) Patricia can type 35 more words per minute than George.
Minutes
Words
5
375
525
825
B George can type 35 more words per minute than Patricia.
7
11
Patricia can type 45 more words per minute than George.
George can type 45 more words per minute than Patricia.

Answers

Answer: A Patricia can type 35 more words per minute than George

Step-by-step explanation:

3(5p - 1) - 4(3p - 7)
Also please explain it as well

Answers

Answer:

3p + 25

Step-by-step explanation:

Let's start with the original expression:

3(5p – 1) – 4(3p – 7)

We need to distribute each constant to the binomial they are multiplying, and when we do that, we get:

15p – 3 – 12p + 28

Why did the 28 turn out positive? We multiplied two negative numbers together, –4 and –7 , and multiplying two negatives always gives us a positive product.

Now, let's rewrite the expression to group like terms together:

15p – 3 – 12p + 28  — marked like terms, constants bold, variables underlined

15p – 12p + 28 – 3  — rewrote the expression to group like terms

Finally, we combine each set of like terms together to get our final answer:

3p + 25  — simplifying

Hope this helps you understand the concept! Have a great day!

3p+25 you just have to distribute and then collect like terms

A plant is already 54 centimeters tall, and it will grow one centimeter every month. The plant's height, H (in centimeters), after M months is given by the following.
What is the plant's height after 13 months?

Answers

Answer:

67 cm

Step-by-step explanation:

We are given the initial height of the plant let's call it H.

H = 54 cm. This is the original height of the plant at M(months) = 0.

We are given that it grows at 1 cm/month. This is the rate of growth.

Rate = 1

Time (M) is given in Months.

So when M = 0, H = 54

Let's say M = 1, That is one month has passed. In this time the plant's height would have increased by 1 cm. So our plant's height would be H = 54+1 = 55 cm.

When Two months have passed our plant's height would be H = 54 + 2 = 56 cm , since every month our plant gains 1 cm in Height, we can make a fuction for this.

H = 1M + 54.

Now we just plug in 13 for M, to get 13 months.

H = 13 + 54

H = 67 cm

So our plant would be 67 cm in height after 13 months.

The starting and stopping point for Amir’s run this morning are 0.5 inch apart on the map. If each inch on the map represents 3 miles, how far did Amir run?
One-sixth mile
Two-thirds mile
1One-half miles
6 miles

Answers

Answer:

C. He ran one and a half miles

Answer:

The answer is C, 1 1/2 miles.

Step-by-step explanation:

Multiply 0.5 and 3, and you get 1 1/2!

Hope this helped!

P.S. : Can I get brainliest please?

Ken is cutting wooden pieces that each measure 2/3 ft long. If ken is cutting from a piece that measures 9 1/3 ft, how many pieces can ken cut

Answers

Answer:

14 pieces

Step-by-step explanation:

Given that the total length available is 9 1/3 ft long and the pieces being cut is 2/3 ft long, the number of pieces that may be cut may be computed by dividing the total length by the length of each piece

= 9 1/3 / 2/3

= 28/3 * 3/2

= 14 pieces

Can someone please help me out this this I don’t get it

Answers

the vertex would be (1,1). Is that what the question is asking?

Order Numbers least to greatest -4.3, 5/4 ,8.2, -6/2, 4, -2.5, 5.33

Answers

-4.3,-6/2,-2.5,5/4,4,5.33,8.2

PLEASE HELP

A line goes through the point (2,5) and has a slope of 1.5. What is an equation of this line?

Answers

Answer:

y=1.5x+2

Step-by-step explanation:

y-y1=m(x-x1)

y-5=1.5(x-2)

y=1.5x-3+5

y=1.5x+2

will give brainliest

Answers

Answer: 65°

Step-by-step explanation:

the answer is 65 because they are supplementary

What is 2 + 3/8?

Please helpp!!

Answers

Answer: 2 + 3/8 is 2 3/8, 19/8, or 2.375

Step-by-step explanation:

First to answer all of the questions will be marked brainiest and get some points points

Answers

Answer:

Whole numbers:

3, √4, zero

Integer but not whole:

-100, -34, -4, -8/4

Rational numbers:

89/10, 49/7, 1/2, 9.23456, 0.333...

Irrational numbers:

π, 0.456783..., √8

Answer:

Whole numbers:

3, √4, zero

Integer but not whole:

-100, -34, -4, -8/4

Rational numbers:

89/10, 49/7, 1/2, 9.23456, 0.333...

Irrational numbers:

π, 0.456783..., √8

Step-by-step explanation:

** I’LL GIVE YOU BRAINLYLIST PLEASE ANSWER **

Answers

The y intercept should be 500 because it is a one time payment that does not need to be repeatedly payed for like the 250. The 250 isn’t the y intercept because it is the slope of the line. Hope this helps. I’m not sure what your drop down menu supplies though

***PLEASE HURRY TIMED TEST***
***WILL MARK BRAINLEST***
Classify the system of equations.
x= -5 - y
2 + y = -x+3

intersecting
parallel
coincident​

Answers

Answer:Solve x=−5−y;2+y=−x+3

I will solve your system by substitution.

x=−y−5;y+2=−x+3

Step: Solvex=−y−5for x:

Step: Substitute−y−5forxiny+2=−x+3:

y+2=−x+3

y+2=−(−y−5)+3

y+2=y+8(Simplify both sides of the equation)

y+2+−y=y+8+−y(Add -y to both sides)

2=8

2+−2=8+−2(Add -2 to both sides)

0=6

Step-by-step explanation:

Answer:parallel

Step-by-step explanation:

(+6) + (−11) + (+5) + (−7)

Answers

Answer:

-7.

Step-by-step explanation:

By grouping positive and negative terms, we see that (+6) + (−11) + (+5) + (−7) = (6+5) - (11 + 7) = 11 - 18 = -7.

Brenda had $23 to spend on two notebooks. After buying them she had $19. How much was each notebook?

Answers

Answer:

Brenda has 4 dollars

Step-by-step explanation:

Answer:

Each notebooks cost $2

Step-by-step explanation:

23-x=19

x=4

But she had 2 notebooks

So that means 4÷2=2

what is 500/465 please

Answers

Answer:

1.075

in fraction form 100/93 but they are both equivalent

Step-by-step explanation:

Answer:

100/93

Step-by-step explanation:

decimal form- 1.075

mixed number- 1

7/93

Work out 95% of £30?

Answers

Answer:

the correct percentage is 28.5

Someone help this is due today and its worth half my grade!!

Answers

Answer:

I think it's 2

Step-by-step explanation:

25 divided by 5 = 5

10 divided by 5 = 2

Find the difference and simplify the following
expressions.
(n – 8) – (2n + 2)

Answers

Answer:

-n-10

Step-by-step explanation:

(n-8)-(2n+2)

n-8-(2n+2)

n-8-2n-2

-n-8-2

-n-10

Which expresionnis equlavimnt to the expression below

Answers

4^2•4^4 = 4096

4^6= 4096

Answer: 4^6

Help that’s it just help I’ll give brainiest

Answers

Answer:

1725 ft^2

Step-by-step explanation:

[tex]\frac{b_{1} + b_{2}}{2} (h) = \frac{65 + 50}{2} (30) = \frac{115}{2} (30) = 57.5(30) = 1725[/tex]

Brainliest would be appreciated!

please help me, i'll give brainlyest

Answers

The answer would be 6(2+5x)

Hope this helps

Have a great day/night

Could someone help with 15x-10 factorised

Answers

Answer:

5(3x-2)

Step-by-step explanation:

This is the answer

Answer:

5(3x-2)

Step-by-step explanation:

this is the answer hope it helps...

take the common factor 5 out....

what is the answer to 7.7w-4.6w

Answers

Answer:

Its simple : 3.1w

Answer:

3.1w

explanation

Solve for x.
21 °
х
22

Answers

Answer:

462

Step-by-step explanation:

A boat is traveling a distance of 90 km at a speed of 30 km/s, how long will it take to reach its destination?
PLEASE SHOW WORK!

Answers

Answer:

3 sec

Step-by-step explanation:

30 km/s is 30 kilometers per second. There are 90 km. #0 km is 1/3 of 90 km.

Please mark me the brainliest, 5 stars, and a thank you! Have a GREAT day!

The table shows the types of movies and the number of DVDs reented by customers at a Red Box in one

Based on the data in the table, what is the probability that a random customer will not rent a drama?

Answers

Answer:

A

Step-by-step explanation:

The probability that a random customer will not rent a drama is 4/5. Option B is correct.

What is probability?

Probability can be defined as the ratio of favorable outcomes to the total number of events.

here,
Total number of rented DVDs = 25 + 36 + 52 + 12 = 125
Number of Drama movies = 25

The probability that a random customer will rent a drama.
P(D) = 25 / 125 = 1/5

Now,
The probability that a random customer will not rent a drama,
P(D)' = 1 - P(D)
       = 1 - 1/5 = 4/5

Thus, the probability that a random customer will not rent a drama is 4/5. Option B is correct.

Learn more about probability here:

brainly.com/question/14290572

#SPJ5

pls help

linear equations
​

Answers

Answer:

I don’t think nobody can help you here because the picture doesn’t show up, sorry

Answer:

B) y=-x+8

y=2x+5

Step-by-step explanation:

B.  If you substite 1 for x and 7 for y, they both work.

To rent a Jet Ski at Sam's it cost $25 plus $3 per hour. Write an equation that represents Sam's charges.

Answers

Answer:

total cost=3(x)+25

Step-by-step explanation:

5n = 36

Solve for n

Please show steps thanks so much

Answers

Answer:

n = 7.2

Step-by-step explanation:

I just divided both sides by 5.

5n (÷ 5) = 36 (÷ 5)

n = 7.2 or 7 [tex]\frac{1}{5}[/tex]

You can choose between using the decimal or the fraction.

Answer:

n=7.2

Step-by-step explanation:

=> 5n=36

=> 5n/5 =36/5 [Divide by 5 on both the sides]

=> n=7.2

Hope this helps you.

Other Questions
Identify at what time you should contact a wildlife rehabilitator if you observe a baby duck, goose, quail, or killdeer in the wild and the parents are not around. a. after 30 minutes c. after 1 hour b. after 45 minutes d. after 2 hours Explain in 1-2 sentences how you identifyproportional relationshipusing a table or graph. PLEASE helpppp What are three ways that the New Deal impacted the United States politically?1.2.3. Determine which function has a greater change of rate. Be sure to show work as well. HELPPP PLEASEE SMART PEOPLE ON HERE Everyone keeps on ignoring me): please help will mark brainliest): what are two important enlightenment ideas? explain. The Triangular TradeBased on what you learned about the Triangular Trade, how did trade and Tercel change the world? Dead matter and waste would pile up without which type of organism?A decomposerB. consumerC. producer hey can u describe how the rosetta stone was found .what is the importance of the rosetta stone Super easy. I just dont feel like adding it up.What is the total monthly income for a person who works 12 hours a week, earning a net pay of $9 per hour. And they also receive $15 each week from their parents. What is his total income for the month? How many moles of atoms in 22.5 g Zn 1. Sarah and Maya both need notebooks and pencils. The equation that represents Sarah'spurchases is y = 13- 3x. The equation that represents Maya's purchases is y = 7 -x. If yrepresents the price of notebooks, and x represents the price of pencils, what are the prices ofthe notebooks and pencils?a) pencils: $4 notebook: $3 go to card 4b) pencils: $6 notebook: $1 go to card 3c) pencils: $3 notebook: $4 go to card 5d) pencils: $1 notebook: $6 go to card 7e) pencils: $4 notebook: $4 go to card 2 NEED HELP WITH GEOMETRY What is one reason why the author includes the information about famous cartoon characters?(A) to highlight some examples of anthropomorphism(B) to highlight some non-examples of personification(C) to illustrate some examples of metaphor and simile(D) to illustrate some non-examples of figures of speech Determine the mass (in g) of a substance, with a density of 2.26 g/mL, that occupies 350.0 mL. 1. Which is greater 0.045 or 0.405? One of the main things that courts do is create Melinda has 7 yards of fabric to make a banner. How many feet of fabric does she have? How many inches of fabric does she have? What is the least common multiple of 18, 36 and 45?