Mathematics College

I don’t know how to do this, please help

Answers

Answer 1

Answer:

[tex]\huge\boxed{(1, -3)}[/tex]

Step-by-step explanation:

In order to find the solution to this system of equations, our goal is to get one variable on one side of the equation.

With the equations d [tex]10x-2y=16[/tex], and [tex]10x-2y=16[/tex], we know that we can multiply [tex]10x-2y=16[/tex] by -1 and the x terms will cancel out (as 10 - 10 = 0).

[tex]-1(10x-2y=16) = -10x + 6y = -16[/tex]

Now we add this equation to the first.

[tex]10x+9y=-17[/tex]

[tex]-10x+2y=-16[/tex]

_______________

[tex]11y=-33[/tex]

Divide both sides by 11 and we get [tex]y=-3[/tex].

Now that we know the value of y, we can substitute it inside an equation and find the value of x. Let's substitute it inside [tex]10x-2y=16[/tex].

[tex]10x-2(-3)=16\\10x+6=16\\10x=10\\\\x=1[/tex]

So x = 1.

Hope this helped!

Related Questions

The sum of two consecutive integers is 99. Find the integers

Answers

Answer:

Step-by-step explanation:

The consecutive numbers will be x and x + 1. Then write out the equation 2x + 1 = 99

Collect like terms

2x = 99 - 1

2x= 98

divide both sides by 2

x = 49

Answer:

49,50

Step-by-step explanation:

N+N+1=99 add the N's together

2N+1=99 subtract 1 from both sides

2N=98 divide 2 by 98

N=49 add the 1 from before

49+1=50

49,50 are the consecutive integers

Most octopi have no internal or external Skelton if a highly intelligent octopus could travel 99.6 miles at top speed in 4 hours how far would it travel on one hour

Answers

Answer:

24.9

Step-by-step explanation:

Factor completely.
18x10-2

Answers

Answer:

178

Step-by-step explanation:

The constant of proportionality is

Answers

Answer: It is the ratio of the amounts y and x: k = y/x. Put another way: y = kx. Example: you are paid $20 an hour. The constant of proportionality is 20 because: Pay = 20 × Hours worked.

A cookie recipe calls for 8 cups of walnuts for every
6 cups of raisins. If you have 28 cups of walnuts,
how many cups of raisins will you need?

Answers

Answer:

21 cups of raisins because 28÷8=3.5 and 3.5x 6=21

Answer:

21 cups of raisins because 28÷8=3.5 and 3.5x 6=21

Step-by-step explanation:

A cube of wood measures 9 cm on a side and weighs 23 g what is the density of the cube of wood

Answers

Length of wood=9 cm
Volume of wood =9x9x9=729cm^3
Mass of wood(m) =23g
Density of wood =m/V
=23/729
=0.03 g/cm^3

Answer:

the density is 25 grams

Step-by-step explanation:

Length of wood=9 cm

Volume of wood =9x9x9=729cm^3

Mass of wood(m) =23g

Density of wood =m/V

=23/729

=0.03 g/cm^3

Shakia buys a bunkbed originally priced at $119.99 at a discounted price of $71.99. What is the discounted percent? Round to the nearest whole number. Then write an equation that relates the markdown price y to the original price x.

Answers

Answer:

the discounted percentage is 40%, saving 48$

Step-by-step explanation:

The discounted price is as a result of the original price being reduced by 40% and the relation of the markdown price and the original is 0.8x = y.

The discount percentage can be found by:

= (Original price - Discounted price) / Original price x 100%

= (119.99 - 71.99) / 119.99 x 100%

= 48/119.99 x 100%

= 40%

The markdown price is as a result of 40% being deducted from the original price:

Original price - 20% of original price = Markdown price

x - (20% × x) = y

x - 0.2x = y

0.8x = y

In conclusion, the markdown percentage is 40% and the equation that shows it is 0.8x = y

Find out more at https://brainly.com/question/3798717.

I need a answer pls help me

Answers

Answer:

31.5

Step-by-step explanation:

15 * 2 = 30

15 / 10 = 1.5

30 + 1.5 = 31.5

If six (6) people greet each other at a meeting by shaking hands with one another, how many handshakes will take place?

UNDERSTANDING THE PROBLEM:

DEVISE A PLAN:

CARRY OUT THE PLAN:

REVISE THE SOLUTION:

Answers

Answer:

Step-by-step explanation:

If two people shake hands there is one handshake.

If three people shake hands there are 3 handshakes.

If four people shake hands there are 3 more handshakes so 3 + 3 = 6 in total.

If five people shake hands there are another 4 handshakes so 6 + 4 = 10.

For 6 people there are another 5 handshakes so 10 + 5 = 15.

A second pattern that may be described is that each person has to shake hands with all the others. If there are 6 people each person has 5 handshakes to make. But each time a handshake occurs there are 2 people involved. This means that you only need ½ (6 x 5 ) = 15.

If six people greet each other at a meeting by shaking hands with one another, the number of handshakes that will take place is 15 handshakes.

It should be noted that based on the information given, each person has to shake hands with all the other people.

Therefore, since there are 6 handshakes, it means that 5 handshakes will be made. Each time a handshake takes place, there'll be 2 people involved. Therefore, the total number of handshakes will be:

= 1/2 × (5 × 6)

= 1/2 × 30

= 15 handshakes.

There'll be 15 handshakes.

Read related link on:

https://brainly.com/question/18684393

Tan weighs 146 pounds. Minh weighs 15 pounds more than Tan. How much does Minh weigh?
Provide your answer below:
pounds

Answers

Minh weighs 161 pounds (146+15=161)

minh would be 161 (146+15)

what is twenty and thirty one hundreths in expanded form
and in standard form

Answers

Answer:

Standard: 20.3, expanded: 10 x 2, 0.1 x 3

Step-by-step explanation:

HELP!!!!PLS!!

A point at (-7, -6) Is reflected over the x-axls. What is the distance between the point and Its reflection?

•6 units
•14 units
•12 units
•7 units

Answers

Answer:

12 units

Step-by-step explanation:

(-7,-6)

if you reflect it over the x-axis then the second number would be changing

-6 the opposite is 6

(-7, 6)

from -6 to 6 is 12 jumps

12 units is the distance from the original point

PLEASE HELPPPPPPPPPPPPPPPPPPP

Answers

Answer:

its b

Step-by-step explanation:

yea good day

I WILL AWARD EXTRA 50 POINTS AND BRAINLIEST
Raise the monomial to a power:
5x2y3 to the power of 2

–4ax3 to the power of 3

–2m3n2t the power of 4

–a2bc3 to the power of 5

Answers

Answer:

5x to the 4; y to the 6

-4a to the 3; x to the 9

-2m to the 12; n to the 8

-a to the 10; b to the 5; c to the 15

Step-by-step explanation:

Order the numbers least to greatest

Answers

Answer: C, B, A, D

Step-by-step explanation: i love your pfp

Does anyone know anything about parallelograms

Answers

Answer:

parallelograms are quadrilateral shapes with 2 pairs of parallel sides

the opposite facing side of a quadrilateral is the same length as the side facing it.

Step-by-step explanation:

HELP ASAP
AS SOON AS POSSIBLE
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA

Answers

Answer:

-18+12

Step-by-step explanation:

Danny's dog weighs 45.33 pounds. His cat only weighs 14.89 pounds. About how much more does his dog weigh?

Answers

Answer:

30.47 pounds

Step-by-step explanation:

45.33-14.89=30.47

Answer:

Danny's dog weighs about 30lbs more than his cat.

45.33lbs - 14.89lbs = 30.44lbs

30.44lbs rounds down to 30lbs

Step-by-step explanation:

I have the same worksheet. Pretty sure it is right. Hope this helps someone!

Divide.
6,338 + 43
remainder

Answers

6,338 divided by 43 equals 147 with a remainder of 17. It would be that because 147 times 43 equals 6,321 plus the remainder of 17 equals 6,338

Can anyone tell me if it’s the right answer if not tell me please !!!!! I need help I don’t get

Answers

yes it is its hard to understand

Im pretty sure you are correct

PLEASE HELP ILL GIVE BRAINLIEST

Answers

Answer: 3

Step-by-step explanation:

Answer:

x = 3

Step-by-step explanation:

Proportions are annoying.

can someone please answer asap..ik it’s easy but idk lol

Answers

I just wanted to say your room is beautiful lol

Answer:

Step-by-step explanation:

a relation from a set of inputs to a set of possible outputs where each input is related to exactly one output.

The sum of three numbers is 123. The third number is 4 times the first. The second number is 9 more than the first. What are the numbers?

Answers

Answer:

1st = 19

2nd = 76

3rd = 28

Step-by-step explanation:

n + 4n + n + 9 = 123

6n + 9 = 123

6n = 114

n = 19

4(19) = 76

(19) + 9 = 28

Hope this helps :)

what type of factoring is this? x^2-25
Step by step :)

Answers

To Find :we need to factorize x² - 25

Solution :

x² - 25 can be written as x² - (5)²

›› x² - (5)²

By using identity a² - b² = (a + b)(a - b)

›› (x + 5)(x - 5)

Answer:

Take the square root of 25 to factor this equation out.

The equation will look like this:

[tex]x^{2} -5^{2}[/tex] (this is the [tex]a^{2} -b^{2}[/tex] = (a-b)(a+b) property)

= (x-5)(x+5)

I'm confusion, don't understand this

Answers

Answer:

b*b*b*b*b

Step-by-step explanation:

It just means that you multiply it by itself 5 times.

Ex: 4^4= 4*4*4*4

Complete the sentence.
A diameter is also a
blank

Answers

An:
A diameter is also a chord.

Answer:

the answer is a chord

Step-by-step explanation:

because thats a diameters other name

HELP PLZ!!! ASAP!!!!! I AM SO STUCK AND CONFUSED!!!
p.s. look at the points...

Answers

Answer:

Company A is cheaper by $180

Step-by-step explanation:

Answer:

Step-by-step explanation:

Given,

The quote from Company A is $0.15 less per square foot than the quote from Company B,

That is,

Quote from Company B for 1 square foot - quote from Company A for 1 square foot = $ 0.15

Quote from Company B for 1200 square feet - quote from Company A for 12 square feet = 1200 × 0.15 = $ 180,

Hence, for buying 1,200 square feet of carpet company A is cheaper by $180 than company B.

if w:8=15:24.the value of w is?

Answers

Answer:

Step-by-step explanation:

24 divided by 3 is 8

so 15 divided by 3 is 5

..........................................
.

Answers

Answer:

whats the question bro but thanks for points

which statement best describes how to find the distance between-5 and 15

Answers

Answer: A

Step-by-step explanation:

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