Mathematics High School

## Answers

**Answer 1**

Answer:

Step-by-step explanation:

x->5

y->2

x*5+y*2=60

if x=10——> y=5 ——> 50+10=60

if x=8——> y=10——> 40+20=60

if x=6——> y=15 ——> 30+30=60

if x=4——> y=20 ——> 20+40=60

if x=2——> y=25 ——> 10+50=60

## Related Questions

How to make 20 using the number 3,5,6,3 add

### Answers

**Answer:**

3+3+6+5+3=20

**Step-by-step explanation:**

3+3=6

6+6=12

12+5=17

17+3=20

**Answer:**

(3x3)+6+5

**Step-by-step explanation:**

3 times 3 is 9

9 plus 6 is 15

15 plus 5 is 20

What's 3c-9d+7c+5d simplify in algebra

### Answers

**Answer:**

10c-4d

**Step-by-step explanation:**

The answer to

3c-9d+7c+5d is 10c - 4d

Further Explanation

One variable linear equation is an equation that has a variable and the exponent number is one.

Can be stated in the form:

or

ax + b = c,

where a, b, and c are constants, x is a variable

Whereas the two-variable linear equation is a linear equation that has 2 variables and the exponent is one

Can be stated in the form:

x, y = variable

There are several ways to solve an equation

Add / Subtract / divide / multiply the same value on both sides

Combine like terms

Factoring

Expanding

Like terms are terms whose variables and their exponents are the same.

You can combine and add terms

The algebraic form of 3c-9d + 7c + 5d can be simplified:

1. Combine like terms

(3c + 7c) + (-9d + 5d)

2. Add like terms:

10c - 4d

Learn more

an algebraic expression

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Keywords: algebraic expression, combine like terms

Factor each completely.

10a² - 9a + 2

### Answers

**Answer:**

a= [tex]\frac{2}{5}[/tex] or [tex]\frac{1}{2}[/tex]

**Step-by-step explanation:**

Equate the equation to zero

[tex]10a^{2}[/tex]-9a+2=0

[tex]10a^{2}[/tex]-5a-4a+2=0

5a(2a-1)-2(2a-1)=0

Write out the factors

(5a-2)(2a-1)=0

Then equate each factor to zero

5a-2=0 OR 2a-1=0

5a=2 OR 2a=1

a= [tex]\frac{2}{5}[/tex] OR a= [tex]\frac{1}{2}[/tex]

a=[tex]\frac{2}{5}[/tex] or [tex]\frac{1}{2}[/tex]

Which is bigger -2.5 or -3/1

### Answers

Answer:

-2.5

Step-by-step explanation:

-2.5 is greater.

-2.5 is bigger than -3/1

Use the interactive to find an expression equivalent to

4x -4- 2x + 3.

O 2x - 1

0 6Y- 1

O 2x - 7

0 -2x + 3

### Answers

**Answer:**

I solved it and my answer is number 1

write the decimal expansion of 16 by 3125

### Answers

**Answer:**

That will be 0.00512

The answer is 0.00513 i mean two

7 pencils cost £5.95.

How much do 11 pencils cost?

### Answers

**Answer:**

11 pencils cost £9.35.

**Step-by-step explanation:**

Given;

7 pencils = £5.95

1 pencil = 5.95 ÷ 7

= £0.85

Now,

11 pencils = 11 × 0.85

= £9.35

**Answer:**

9.35$

**Step-by-step explanation:**

to find the cost of 11 pencils first we need to find the price of 1.

5.95 divided by 7 = 0.85$ (the price of one pencil)

we need to find the price of 11 pencils though.

0.85x11= 9.35$

if a polynomial is divided by x-5, the quotient is 2x^2 +8x-9 and the remainder is 3 what is the original polynomial?

### Answers

**Answer:**

[tex]P(x)=2x^3-2x^2-49x+48[/tex]

**Step-by-step explanation:**

Let the original polynomial be [tex]P(x)[/tex].

We know that when it is divided by [tex](x-5)[/tex], the quotient is [tex]2x^2+8x-9[/tex] and we get a remainder of 3.

Therefore, this means that:

[tex]\frac{P(x)}{x-5}=2x^2+8x-9+\frac{3}{x-5}[/tex]

Remember what it means when we have a remainder. Say we have 13 divided by 3. Our quotient will be 4 R1, or 4 1 *over* 3. We put the remainder over the divisor. This is the same thing for polynomials.

So, to find our original polynomial, multiply both sides by [tex](x-5)[/tex]:

[tex](x-5)\frac{P(x)}{x-5}=(x-5)(2x^2+8x-9+\frac{3}{x-5})[/tex]

The left side will cancel. Distribute the right:

[tex]P(x)=2x^2(x-5)+8x(x-5)-9(x-5)+\frac{3}{(x-5)}(x-5)[/tex]

Distribute:

[tex]P(x)=(2x^3-10x^2)+(8x^2-40x)+(-9x+45)+(3)[/tex]

Combine like terms:

[tex]P(x)=(2x^3)+(-10x^2+8x^2)+(-40x-9x)+(45+3)[/tex]

Evaluate:

[tex]P(x)=2x^3-2x^2-49x+48[/tex]

And we're done!

Answer: 2x^3 - 2x^2 - 49x + 48

Explanation:

Let a be the original polynomial

Where a/(x-5) = 2x^2 + 8x - 9 (remainder 3)

a = (2x^2 + 8x - 9)(x-5) + 3

a = 2x^3 - 10x^2 + 8x^2 - 40x - 9x + 45+3

a = 2x^3 - 2x^2 - 49x + 48

Leo invested $1900 in an account with annually compounded interest. After 3 years, he had $2275 in the account. What was the interest rate of the account? Round your answer to one decimal place. Do not write the percent sign.

### Answers

**Answer:**

6.2

**Step-by-step explanation:**

Use the formula for calculating compound interest PN=P0(1+rk)Nk where r is the unknown, PN=2275, P0=1900, k=1, and N=3. Substitute the values into the formula and simplify.

2275=1900(1+r1)3⋅1

Let's simplify within the parenthesis and the exponent.

2275=1900(1+r)3

Divide both sides by 1900.

22751900=(1+r)3

To isolate the variable, take the cube root of each side.

22751900−−−−−√3=1+r

Subtract 1 from each side to get r by itself.

22751900−−−−−√3−1=r

Simplify for an answer of r≈0.062 which is the interest rate 6.2%.

Cecil sold vegetables at the farmers market on Saturday and Sunday. On Saturday, he collected twenty $1 bills, six $5 bills, four $10 bills, and five $20 bills. On Sunday, he collected thirty $1 bills, four $5 bills, five $10 bills, and one $20 bill. How much money did Cecil collect in total?

### Answers

**Answer:**

$250.00

**Step-by-step explanation:**

twenty $1 bills- 20 x 1 = **20**

six $5 bills- 6 x 5 = **30**

four $10 bills- 4 x 10 = **40**

five $20 bills- 5 x 20 = **100**

thirty $1 bills- 30 x 1 =** 30**

four $5 bills- 4 x 5 = **20**

five $10 bills- 5 x 10 = **50**

one $20 bill- 1 x 20 = **20**

**Add the bold totals together and get the final answer of $250.00**

You need a loan of $110 comma 000 to buy a home. Calculate your monthly payments and total closing costs for each choice below. Briefly discuss how you would decide between the two choices. Choice 1: 15-year fixed rate at 6% with closing costs of $1200 and no points. Choice 2: 15-year fixed rate at 5.5% with closing costs of $1200 and 4 points.

What is the monthly payment for choice 1? $

(Do not round until the final answer. Then round to the nearest cent as needed.)

### Answers

**Answer:**

Monthly payment for choice 1 is **$6,600**

**Step-by-step explanation:**

We will use following formula in order to calculate the monthly payment of choice 1

Value of Loan = Monthly payment x ( 1 - ( 1 + Interest rate )^-numbers of payments / interest rate

Where

Value of Loan = $110,000

Interest rate = 6%

Numbers of Payment = 15 years x 12 payments / year = 180 payments

Placing values in the formula

$110,000 = Monthly payment x ( 1 - ( 1 + 6% )^-180 ) / 6%

$110,000 = Monthly payment x 16.6662

Monthly Payment = $110,000 / 16.6662

Monthly Payment = $6,600.18

Monthly Payment = **$6,600** (Rounded to whole number)

Write an equation in slope-intercept form for the line that passes through the given point and has the given slope:

(1, 5)

Slope = -1

PLS HELP PLS PLS TYSM

### Answers

**Answer:**

y = -x + 6

**Step-by-step explanation:**

We can plug the given point and slope into the point-slope formula and solve for the y-intercept formula.

y - y = m(x - x) <-- Point-Slope Formula

m = -1

(x,y) = (1, 5)

y - 5 = -1(x - 1)

y - 5 = -x + 1

y = -x + 6 <-- Y-intercept Formula

arlene begins a test with a possible total of 80 points. she loses 2 points every questions she answers incorrectly.

### Answers

Answer: how many questions were incorrect? take that number and multiply it by 2. then subtract whatever u got from 80.

Step-by-step explanation:

Helppp with this question plzz

### Answers

**Answer:**

306

**Step-by-step explanation:**

There are 102 triangles, a triangle has 3 sides, each side is 1 cm. 102 x 3=306

Find the coordinates of the midpoint of the segment joining the given points. (-2, 2) and (6, 4)

### Answers

**Answer:**

**Step-by-step explanation:**

(-2+6/2) (2+4/2)

(4/2) (6/2)

(2) (3)

(2,3)

4= 2f -2 i need help

### Answers

**Answer:**

f=3

**Step-by-step explanation:**

4=2f-2

6=2f

f=3

**Answer:**

f=3

**Step-by-step explanation:**

the area of a square garage is 121 square feet. will it fit a car that measures 13 feet long? explain

### Answers

**Answer:**

no.

**Step-by-step explanation:**

the side of the square garage will be square root of 121 = 11

since the car is wider than the side of the garage, It wouldn't fit.

Simplify (3^-2)^4

A: 3^8

B: 1/3^2

C: 1/3^8

D: 3^2

### Answers

answer: c

explanation: (3^-2)^4 equals 1.5x10^-4

find which choice equals the same as the given equation.

hey help quick...please

### Answers

Hope to help you, have a good day!

**Answer:**

A

**Step-by-step explanation:**

2Red 6 Blue Balls

+4Yellow

= 6 balls

true or false when a figure has an enlargement, the figure gets smaller

### Answers

**Answer:**

False.

**Step-by-step explanation:**

False.

To enlarge means to become bigger.

**Answer:**

False

**Step-by-step explanation:**

When something is enlarged, it gets bigger, when it(the item) is minimized it becomes smaller.

finding measure using triangles

### Answers

Answer: z=43

Step-by-step explanation:

**Answer:**

37°

**Step-by-step explanation:**

∠ABC +∠BAC +∠BCA= 180°

41° + 102° + ∠BCA= 180°

∠BCA= 37°

Jasmin is getting a new phone. It is $50 to activate and $15 monthly to keep on.

Please represent this word problem in all other ways. Explain if this is linear or not. Why or why not( HELP!!)

### Answers

**Answer:**

y=15x+50

**Step-by-step explanation:**

yes this is linear because you are paying 15 dollars every month, with 50 dollars too

HURRY WILL NAME BRAINLIEST Which pairs of rational numbers are equivalent? Select all that apply.

-0.5 and Negative one-half

0.ModifyingAbove 7 with barand StartFraction 7 over 10 EndFraction

StartFraction 11 over 20 EndFractionand 0.55

StartFraction negative 1 over 50 EndFractionand -0.02

0.15 and 0.1ModifyingAbove 5 with bar

### Answers

The 3 **equivalent pairs** are:

-0.5 and -1/211/20 and 0.55-1/50 and -0.02

Which pairs of rational numbers are equivalent?

Remember that two numbers A and B are **equivalent** if:

A = B

The first pair given is:

-0.5 and (-1/2).

We know that 1/2 = 0.5, then (-1/2) = -0.5

So we conclude that

-0.5 and (-1/2) are **equivalent**.

Another **equivalent pair** is:

11/20 and 0.55

To check this, you can just solve the **fraction **in your calculator, you will see that:

11/20 = 0.55

Then 11/20 and 0.55 are **equivalent**.

The final **equivalent pair** is:

-1/50 and -0.02

Because:

-(1/50) = -(0.02) = -0.02

Then -1/50 and -0.02 are **equivalent**.

If you want to learn more about **equivalent numbers:**

https://brainly.com/question/2972832

#SPJ1

**Answer:**

A B

**Step-by-step explanation:**

Rewrite the following expression as the product of two binomials. Do not simplify the product.

(x-5)(4x+9) + (2x - 4)(x-5)

### Answers

**Answer:**

x-5

**Step-by-step explanation:**

Unit test in science if you took it. It's question 10 four students measure the length of a paperclip whose actual length is 3.2 cm. Whose measurement is precise but not accurate? IS IT A OR B I DONT KNOW A.Samuel: 2.7, 2.7, 2.7, 2.8 B. Jose: 2.2, 2.6, 3.0, 3.3 C. Nikita: 3.1, 3.1, 3.2, 3.2 D. Anne: 2.6, 3.2, 3.2, 3.6

### Answers

Answer: A.Samuel: 2.7, 2.7, 2.7, 2.8

Step-by-step explanation:

Given that actual length = 3.2cm

Samuel's score is precise but inaccurate. This is because, each of Samuel's four measurements are close to each other even though it lacks accuracy, because it is a bit far from the actual value of the measurement. Hence, of the measurements given for each of Samuel, Nikita, Jose and Anne, Samuel's score exhibits precision but inaccurate. Nikita's score is both precise and accurate

which statements are true when solving x^2=81

### Answers

**Answer: x**

**2**

**=**

**81**

**can be written as**

**x**

**2**

**−**

**81**

**=**

**by property , **

**a**

**2**

**−**

**b**

**2**

**=**

**(**

**a**

**+**

**b**

**)**

**(**

**a**

**−**

**b**

**)**

**The expression becomes**

**x**

**2**

**−**

**(**

**9**

**)**

**2**

**=**

**(**

**x**

**−**

**9**

**)**

**(**

**x**

**+**

**9**

**)**

**=**

**equating each of the terms with zero we obtain the solution**

**x**

**−**

**9**

**=**

**and**

**x**

**+**

**9**

**=**

**the solutions are **

**x**

**=**

**9**

**or**

**x**

**=**

**−**

**9**

**Step-by-step explanation:**

**Answer:**

A) Take the square root of both sides to solve

E) x = ±9

**Step-by-step explanation:**

PLEASE HELP

m<6 = (2x-5)°

m<4 = (x+5)°

### Answers

9514 1404 393

**Answer:**

∠3 = 115°

**Step-by-step explanation:**

Angles 4 and 6 are "same-side interior angles", so are supplementary.

∠4 +∠6 = 180°

(x +5) +(2x -5) = 180

3x = 180

x = 60

The angles marked 3 and 6 are alternate interior angles, so are congruent. The measure of angle 3 is ...

∠3 = ∠6 = (2x -5)° = (2(60) -5)°

** ∠3 = 115°**

What is the second step of a tax/tip/markup problem?

Question 3 options:

A: Adding the Original $ and the Tax/Tip/Markup $

B: Subtracting the Original $ and the Tax/Tip/Markup $

C: Adding the Original $ and the Percent

D: Subtracting the Original $ and the Percent

### Answers

**Answer:**

I think it might be C im not sure tho

1. The quotient of twice a number and 7 is 20.

### Answers

The equation would be:

2(x+7)=20

7/8 divided by 1/4 simplest form

### Answers

[tex] = \frac{7}{8} \div \frac{1}{4} [/tex]

[tex] = \frac{7}{8} \times \frac{4}{1} [/tex]

[tex] = \frac{(7 \times 8)}{4} [/tex]

[tex] = \frac{56}{4} [/tex]

[tex] = \frac{56 \div 4}{4 \div 4} [/tex]

[tex] = \frac{14}{1} [/tex]

[tex] = 14[/tex]

Therefore :-

[tex] \frac{7}{8} \div \frac{1}{4} = 14[/tex]