Mathematics High School

How many Solutions?
4x=y
2x+y = 30

Answers

Answer 1

Answer:

one

Step-by-step explanation:

How Many Solutions?4x=y2x+y = 30
Answer 2
la respuesta es una (the answer is one)

Related Questions

Please answer the question quickly, I'll mark you brainliest and give you 5 stars!

Answers

Answer:

b.

Step-by-step explanation:

you have to determine weather -1/42) exponet 6 is negative you will then explain how you got the answer because b is the only one with a negative out front all the other answers have them in the parenthesis

Evan used base-10 blocks to model the product of 3 and 0.51.

How can Evan use this model to determine the product?

Enter your answers in the boxes to correctly complete each statement.

The model shows a total of
tenths and
hundredths. After regrouping, there is 1 whole,
tenths, and
hundredths, so the product is
. PLS HURRY 10 points

Answers

Regrouping this is C

Base 10 blocks are used to perform arithmetic operations.

To model the product of 3 and 0.51, Evan needs 3 copies of 5 tenths and 1 hundredths.

What are base - 10 blocks?

Base 10 blocks are a collection of four distinct types of building blocks that, when combined, can assist you in visualizing and comprehending the appearance and value of a number. In addition, base 10 blocks can be utilized to comprehend volume, perimeter, area, multiplication, division, and addition and subtraction.

Given: Evan used base-10 blocks to model the product of 3 and 0.51.

We have to find how can Evan use this model to determine the product.

Consider the expression for product of 3 and 0.51 as,  3 x 0.51

Express 0.51 as 0.5 + 0.01

3 x 0.51 = 3 x (0.5 + 0.01)

0.5 means 5 tenths0.01 means 1 hundredths3 means that, the above blocks are needed in three places.

Hence, Evan needs 3 copies of 5 tenths and 1 hundredths.

To know more about the base - 10 blocks, click on the link

https://brainly.com/question/25219630

#SPJ2

PLZ ANSWER!
Harrison is buying a bicycle for $340. What is the cost of the bike with tax if the sales tax is 5%?


Question 4 options:


$323



$340



$357



$360

Answers

Answer:

357

Step-by-step explanation:

5% of 340 is 17 add that to 340, the price of bicycle by itself and you get 357

Aaron is baking cookies. The recipe uses 2 cups of flour to make 30 cookies. If Aaron wants to make 40 cookies, how many cups of flour should he use?

223
2
2
3

234
2
3
4

313
3
1
3

334

Answers

Answer:

2.6

Step-by-step explanation:

2: 30

1 cup of flour makes 15 cookies

divide 40 by 15

he will need 2.6 cups of flour

Please Help!!!!! What rational number is halfway between 1/6 and 1/2

Answers

Answer:

1/3

Step-by-step explanation:

A regular hexagon has a perimeter of seventy-eight centimetres. Find the length of one of its sides.

Answers

78/6 maybe which equals 13 sorry if its wrong

Answer: 13 cm

Step-by-step explanation:

A hexagon has 6 sides

78/6 = 13

solve, showing all work. state if there is one solution, no solution, or infinite solutions -3(k+2)=-3k+7. please help i need answer asap :(

Answers

Answer:

-6=7 NO SOLUTION

Step-by-step explanation:

First, distribute the -3 to the (k +2)

Your equation becomes, -3k-6=-3k+7

Add 3k to both sides to have the variables be on the same side

Your equation becomes, -6=7

Since that isn’t true, it’s a no solution

I hope this helps!

Write an exponential decay function to model the situation. Compare the average rates of change over the given intervals.

Answers

The exponential decay function could be the model of the situation comparing what I said do not utilize because the user is trying to acoses the points

A farmer bought a scratch ticket and found out later that he won $1,800,000. After 30% was deducted for income taxes he invested the rest; some at 4.75% and some at 6.25%. If the annual interest earned from his investments is $72,135, find the amount he invested at each rate.

Answers

Answer:

The amount invested in the investment that yields an interest rate of 4.75% is $441,000.

The amount invested in the investment that yields an interest rate of 6.25% is $819, 000.

What is the income tax paid by the farmer?

Income tax is the tax levied by the government on the income of individuals or companies.

Income tax = tax rate x income

30% x  $1,800,000

= 0.3 x  $1,800,000.

= $540,000

After tax income =  $1,800,000 - $540,000 = $1,260,000

System of equations that can be determined from the question

a + b =  $1,260,000 equation 1

0.0475a + 0.0625b = $72,135  equation 2

Where:

a = amount invested in the investment that yields an interest rate of 4.75%

b = = amount invested in the investment that yields an interest rate of 6.25%

What is the value of b?

In order to determine the value of b, take the following steps:

Multiply equation 1 by 0.0475

0.0475a + 0.0475b = 59,850 equation 3

Subtract equation 3 from equation 2

12,285 = 0.015b

Divide both sides of the equation by 0.015

b = $819, 000

What is the value of a?

a + $819,000 = $1,260,000

a = $1,260,000 - $819,000

a = $441,000

Step-by-step explanation:

Hii this is not my answer this was from another same question you asked but i hope this helps ^^

What is the distance formula?​

Answers

Hello! I think it’s B! :D

Which inequality is true when x = 3.5?

Answers

Where are the inequalities ?

Logan gets $50 for his birthday. He makes extra money shoveling his neighbors' driveways. He earns $10 for
each driveway that he shovels. Identify the y-intercept of the graph.

Answers

Answer:

50

Step-by-step explanation:

he got $50 first then got $10

Multiply. Enter the product in simplest form. 3/ 8 × 4/ 11 =

Answers

Answer:

3/22

Step-by-step explanation:

cross multiply in order to find the answer

Answer:

3/22

Explanation:

3 800 mm to 3 m as ratio in its simplest form ​

Answers

Answer:

19:15

Step-by-step explanation:

We know that 1 m = 100 cm = 1000 mm.

So 3 m = 3000 m.

So the ratio is

[tex]3800:3000\\=38:30\\=19:15[/tex]

1 m = 1000 mm
3 m = 3*1000= 3000 mm
3800 : 3000 = 38 : 30 = 19 : 15

PLS HELP THIS SHOULD BE EASY!!!

Answers

Answer:

1. 259.53 dollars

2. 14.71 pounds

Step-by-step explanation:

I think these are the answers. Please double-check just in case.

Grabbed a system of equations to determine the solution.
y=2x+4.
and
y=x+9

Answers

Answer:

The solution to both lines would be (0,4)

Assuming your solving for x:
1. Rewrite y=x+9 for substitution: x=y-9
2. Plug in previous rewritten equation for x in the top one:
y=2x+4
y=2(y-9)+4
^Distribute
y=2y-18+4
y=2y-14
^minus y / plus 14
14=y
Hope this helps :))

4. Here are the equations that define three functions.
f(x) = 4x - 5
=
g(x) = 4(x - 5)
h(x) =x/4 -5
a. Which function value is the largest: f(100), g(100), or h(100)?
b. Which function value is the largest: f(-100), g(-100), or h(-100)?
c. Which function value is the largest: f(1/100), g(1/100), or h(1/100)?

Answers

The functions f(x), g(x) and h(x) are all linear functions

The function value that is largest is h(-100)The function value that is largest is h(-100)The function value that is largest is f(1/100)

How to determine the function with the largest values

The functions are given as:

[tex]f(x) = 4x - 5[/tex]

[tex]g(x) = 4(x - 5)[/tex]

[tex]h(x) = x/4 -5[/tex]

At x = 100, we have:

[tex]f(100) = 4 * 100 - 5 = 395[/tex]

[tex]g(100) = 4 * (100 - 5) = 380[/tex]

[tex]h(100) = 100/4 - 5 = 20[/tex]

Hence, the function value that is largest is f(100)

At x = -100, we have:

[tex]f(-100) = -4 * 100 - 5 = -405[/tex]

[tex]g(-100) = 4 * (-100 - 5) = -420[/tex]

[tex]h(-100) = -100/4 - 5 = -30[/tex]

Hence, the function value that is largest is h(-100)

At x = 1/100, we have:

[tex]f(1/100) = 4/100 - 5 = -4.96[/tex]

[tex]g(1/100) = 4 * (1/100 - 5) = -19.96[/tex]

[tex]h(1/100) = (1/100)/4 - 5 = -4.9975[/tex]

Hence, the function value that is largest is f(1/100)

Read more about linear functions at:

https://brainly.com/question/15602982

One bag of 30 diapers costs $4.25. A box of 125 diapers costs $24.99.
which is the better buy? How much does each diaper cost?

Answers

The better deal will be the one that costs the least per diaper. With this in mind, start by calculating the individual diaper cost for both deals.

—30 diapers for $4.25
$4.25/30
≈$0.14 per diaper

—125 diapers for $24.99
$24.99/125
≈$0.20 per diaper

Therefore, the deal with 30 diapers is the better buy.

A right triangle has…?

A) three sides with the same length

B) two sides that are parallel

C) at least buvo congruent sides

D) Two sides that are perpendicular

Answers

Answer: C and D

Explanation:

Is it A? No, because a right triangle does not have all three sides with equal length. Only in a equilateral triangle will have all three equal sides of equal length.

Is it B? No, because a triangle has ZERO parallel lines. Remember parallel lines are like this | | in a triangle the lines are like this /\

Is it C? Yes, because a triangle has two sides of equal length, meaning it has two congruent sides.

Is it D? Yes, a right triangle has two sides that create the 90 degrees making it a right triangle. Perpendicular means that theirs two lines creating the 90 degree and a triangle has two perpendicular sides.

How long is the arc intersected by a central angle of StartFraction pi Over 3 EndFraction radians in a circle with a radius of 6 ft? Round your answer to the nearest tenth. Use 3. 14 for Pi. 1. 0 ft 5. 7 ft 6. 3 ft 7. 0 ft.

Answers

[tex]\textit{arc's length}\\\\ s=r\theta ~~ \begin{cases} r=radius\\ \theta =\stackrel{radians}{angle}\\[-0.5em] \hrulefill\\ r=6\\ \theta =\frac{\pi }{3} \end{cases}\implies s=6\cdot \cfrac{\pi }{3}\implies s=2\pi \implies s\approx 6.3[/tex]

The local hamburger shop sold a combined total of 522 hamburgers and cheeseburgers on tuesday there werw 72 more cheeseburgers sold than hamburgers how many hamburgers were sold on tuesday

Answers

522-72= 450
A:450
I hope this helps

y = mx + b, the letter b is the

Answers

Answer:

B is the Y-Intercept of the graph/equation

Step-by-step explanation:

[tex]\huge\fbox{Hi~there!:)}[/tex]

Remember the Slope-Intercept formula:

[tex]\rm{y=mx+b}[/tex]

Where

[tex]\rm{m[/tex] is the slope of the line

[tex]\rm{b}[/tex] is the y-intercept. (Answer)

Hope you find it helpful.

Feel free to ask if you have any doubts.

[tex]\bf{-Sparkles^**^*[/tex]

How do you solve 10 - x = 25?

Answers

Answer:

Work the problem backward

Step-by-step explanation:

instead of 10-x=25 do 25-10 = x So yeah that should give you the variable X

Answer:

-15

Step-by-step explanation:

10-x=25

take away 10 from both sides of the equation.

-x = 15

divide by - (-1) to get x

x = -15

what is the coefficient in 15-4b

Answers

Answer:
4
Step-by-step explanation:
Coefficients are numbers in front of variables

4 is the coefficient
The coefficient is the number before the variable

How is the expression 2(x-1) is equal to the expression 2x+3(2x-3)-6x +7

Answers

Answer:

7

Step-by-step explanation:

Cause the expression is solved like this

pls answer now
i gave you brainlest

Answers

1) A

2) B

3) C

4) C

5) D

20 points!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1

Answers

Answer:B

Step-by-step explanation:

Angie Sigler purchases a game console set that regularly sells for $59.95, but is
on sale for 20 percent off. What is the discount?

Answers

Answer:

$47.96

Step-by-step explanation:

Step one - Convert 20% to the fraction 1/5

Step two - Multiply 59.95/5 (equivalent to 59.95*1/5 just easier to write down) to get 11.99

Step three - 11.99*4 because we want to find out what 80% of the cost is (which would be 20% or 1/5 in this case *4)

Answer - $47.96

Hoped this helped

A faster way would be multiplying 59.95 by 4/5 instead as it gives the same result with less steps.

Rounded to the nearest meter, what is the distance between the docks? Round to the nearest meter. 589 meters 705 meters 792 meters 861 meters.

Answers

Answer:

705

Step-by-step explanation:

Answer:

The answer is B. 705

Step-by-step explanation:

Got it right on the test!

The diagram shows corresponding lengths in two similar figures. Find the area of the smaller figure.
A. 81 cm2
В. 135 cm2
C. 180 cm2
D 240 cm2

Answers

Answer:

B is the correct answer

the area of the smaller figure.

135 cm^2

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