3x + 2y = -10
5x + y = 9

Answers

Answer 1

Answer:

x=4, y=-11. (4, -11).

Step-by-step explanation:

3x+2y=-10

5x+y=9

--------------

3x+2y=-10

-2(5x+y)=-2(9)

--------------------

3x+2y=-10

-10x-2y=-18

-----------------

-7x=-28

7x=28

x=28/7=4

5(4)+y=9

20+y=9

y=9-20=-11


Related Questions

Complete the proof that △UVY≅△WVX.

Answers

Answer:

ASA

Step-by-step explanation:

Angle side angle the angles are marked and the one side is too

Jamie drank 4 times as much juice as Brodie. Jamie drank 280 milliliters of juice.How much did Brodie drink ?

Answers

Answer:

Brodie drank 70 milliliters

Step-by-step explanation:

280 divided by 4 equals 70

To check: 70 x 4 = 280

Hence, the Brodie drink [tex]280[/tex] milliliters.

What is the simplification?

Simplification is reducing the expression/fraction/problem in a simpler form. It makes the problem easy with calculations and solving.

Here given that,

Jamie drank four times as much juice as Brodie. Jamie drank [tex]280[/tex]milliliters of juice.

So,

[tex]\frac{280}{4}=70[/tex] millilitres

And, Jamie drank four times as much juice as Brodie

[tex]70[/tex] x [tex]4[/tex] = [tex]280[/tex]

Hence, the Brodie drink [tex]280[/tex] milliliters.

To know more about the simplification

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Please help!!!!!!! Tysm!!

Answers

Answer:

it's the first answer

Step-by-step explanation:

its 2/9 because 1/3 × 2/3 = 2/9

Answer:

It's C

Step-by-step explanation:

1/3 x 2/3 = 2/9, which simplifies back to 1/3

and 1/3=2/6

How do I work this out?

Answers

the answer is 7, inversely proportional to x+9 therefore making it 22cm squared
hope this helps

Pls help this is due in 2mins

Answers

Answer:

45 dimes

Step-by-step explanation:

66 nickels = 66 x $0.5 = $3.30

$7.80 - $3.30 = $4.50

$4.50 / $0.10 = 45

Ms.Lee bought some Reese and a bag of chips. They cost $4.36 altogether. The chips cost $1.60 more than the Reese. How much did the Reese cost?

Answers

Answer: $1.38

Step-by-step explanation:

Let the value of the Reese be represented by x

Since the chip cost $1.60 more than the Reese, then the chip will be:

= x + 1.60

Since they cost $4.36 altogether, the value of the Reese will be:

x + (x + 1.60) = 4.36

2x + 1.60 = 4.36

2x = 4.36 - 1.60

2x = 2.76

x = 2.76/2

x = 1.38

The Reese cost $1.38

Answer:

1.36

Step-by-step explanation:

This is a practice delta math but i need help.

Answers

Answer:

it is the one that goes [tex]a_{n} =10(-2)^{n}[/tex]

Step-by-step explanation:

10 is the starting term a(sub 1). 2 is r or the common ratio and n is the term number you want to find. I hope this helps!

70 students per 2 teachers. How many students per teacher?

Answers

Answer:

35 students per teacher

Step-by-step explanation:

Answer:

35 students per teacher

Step-by-step explanation:

Divide 70 and 2

70/2=35

Pleaseeeee I’ll mark u brainleast

Answers

Answer:

1: x = 10

2: x = 2

3: x = 5

4: x = -5

Step-by-step explanation:

1. first one is g
2. c
3. a
4. h

A train is traveling at a speed of 60 miles per hour. What statements are correct? Select all that apply.
The number of miles the train travels causes a change in the number of hours.
The number of hours causes a change in the number of miles the train travels.
Om, the number of miles, is the independent variable.
h, the number of hours, is the dependent variable.
m, the number of miles, is the dependent variable.
h, the number of hours, is the independent variable.

Answers

Answer:

2, 5,6

Step-by-step explanation:

Answer:

2, 5, 6

Step-by-step explanation:

plz give me brainliest, i have no more and i need to level up

place (−6, 8) on the coordinate plane.

Answers

Answer:

6 spots to the left and then 8 spots up

Step-by-step explanation:

Just go 6 spots to the left and then 8 spots up

Answer:

Thats where you put it

Help please!!! need to turn in, in 17 minutes

Answers

Answer:

x+4 and y+3

Step-by-step explanation:

Both the x and y values move in positive directions from the first triangle to the second.

Answer:

(x+4, y+3)

Step-by-step explanation:

First, choose a point to follow (I chose C).  The coordinates of C are (-2, -5).  The coordinates of C' are (2, -2).  To get to 2 from -2, you have to add 4.  Move left or right because it's on the x-axis.  Since it's moving you the right, it is positive.  So, x+4 is the first part.  To get from C to C', you have to move up to follow the y-axis, meaning another positive.  Counting the units from (2, -5), because that is the point after x+4, there are 3 units.  So, (x+4, y+3).  

Which pair of lines are perpendicular lines?

Answers

Answer:

A

Step-by-step explanation:

perpendicular lines have the same slope

Which value from the set (54,45,27,6) makes 54/x = 9 true?

Answers

Answer:

x = 6

Step-by-step explanation:

54/6 is 9. This is the only correct one.

Hope it helps!

Tell whether each statement about the expression 5y + 9 is True or False

The number 5 in the expression is a constant.
The expression has one variable term.
The variable in the expression is y.
The number 5 is not a coefficient in the expression.
The expression has three terms.

Answers

Answer:

1st one is false

the second one is true i think ;-;

3rd is true

4th is false

5th is also false i think

Step-by-step explanation:

please can someone actually help me with this! ( fake answers will be reported)

Answers

IF I remember correctly:
A circle is 360 degrees.
360-280=80
Y=80
110 80
—- • ——
7 x

Cross multiply
110x=560
X=approximately 5.1
Plz don’t report I’m not sure if I did it right.
Only use this as a last choice or if u have several try

an equation has a slope of -14 and passes through the point, (1,0) what is the slope of the equation of the line when written in slope-intercept form

Answers

Answer:

y= -14x +14

Step-by-step explanation:

Answer:

y= -14x +14

Step-by-step explanation:

can some one pleaseeee help me ?!?

Answers

1) a=16

a is 16 because 16/4 is 4. 2 plus 4 is 6

AHHHHHH AGAIN!?
so someone helped me understand how to do long division again! ty, i just need to know...

what is this?
ima give the crown again for this one as well (also 20 points for this!) (sorry if im bothering anyone!!)

Answers

Answer:

The anwser is 321.6 I hope it helps


pleasee help this is due today I'll give brainliest






If a rectangle's area is 3 15/16 width square feet and its length is 1 1/8 feet. What is the width​

Answers

Answer:

3.5 or 3 and 1/2

Step-by-step explanation:

3 and 15/16 / 1 and 1/8

Help!! me choose the inequality

Answers

I think the answer is a

I don’t know how to complete this problem. Can anyone help out? Please and thank you :)

Answers

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

here are the ingredients needed to make 8 buiscuits 90g of butter 35g of sugar and 125g of flour hamid has 315g of butter 150g of sugar and 500g of flour work out the greatest number of buiscuits hamind can make (and how like the working out)​

Answers

Answer:

These ten cookie recipes that take less than 15 minutes will blow your mind

What can be better than sitting on a sofa, cuddled up in cozy blanket, sipping tea, and nibbling on a few (or more) fresh, delicious cookies after a long, cold day? You can argue that this situation is impossible; you're busy, and never have enough time or energy for baking yummy goods.

Here at Bright Side, we know how little time you have for desserts. That is why we put together a list of ten recipes for the best cookies that only take 15 minutes to make.

Coconut cookies

Lillian works 7 hours each day for 5 days a week.
She earns £420 each week.

How much does she earn per hour?

Answers

Answer:$12 dollars and hour

Step-by-step explanation:

7 hours times 5 days a week equals 35 hours. 420/35 hours equals 12 dollars


pls help:) 33 points:))

Answers

The last one is the correct answer

Write two equivalent expressions for 15(3 + w).
1.
2.

Answers

1. 45+15w

2. 3(15+5w)

Please mark brainliest

Juice is on sale with the rule "buy one, get one half-off." Write an
expression in two different ways to represent the cost of buying two
containers of juice on sale.

Answers

Answer:

total = 0.5(unit$) + unit$

total = unit$(1.5)

Step-by-step explanation:

The expression which is helpful to find the cost of buying two containers of juice on sale is x + 0.5x.

How to form an equation?

Determine the known quantities and designate the unknown quantity as a variable while trying to set up or construct a linear equation to fit a real-world application.

As per the given, buy one and get one half off.

For x number of units,

Total = x + 0.5x

Hence "The expression which is helpful to find the cost of buying two containers of juice on sale is x + 0.5x".

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I haven't did my math for a month since brainly tutoring wasn't working. I need you guys help ​

Answers

Answer:

$2.50

Step-by-step explanation:

Answer:

$25 per ft2

Step-by-step explanation:

you have to calculate the area  (20x8=160sq ft) and then get 4000/160 which is $25.

Find the solution to the system of equations. y = 2x + 2 ([?], [?])​

Answers

there’s not a second equation for the system of equations

Solve for x

-4 + x _< 9

Answers

Answer:

Step-by-step explanation:

what is the underscore for?

Answer:

your answer should be x < 13

Step-by-step explanation:

Hope this helps and have a nice day :)

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