Solve the following system of equations.
5x+4y = 10
5x + 8y = 30

Answers

Answer 1

Answer:

(-2, 5), x = -2, y = 5

Step-by-step explanation:

When x = -2 and y = 5 on both equations, the equations become true.


Related Questions

Pran ran 29 miles less than Robin last week. Pran ran 19 miles. How many
miles did Robin run?

Answers

Pran= 19
Robin= 29+19

29+19= 48

Slope, m = 3, y-intercept, b = 5

Answers

Answer:

I can't help if I don't have enough to answer sorry

Step-by-step explanation:

Marina simplified the expression 4x + 5(–4x – b) – (x – 2) to be –17x – 8.
What was the value of b?
A. –6
B. –2
C. 2
D. 10

Answers

Answer: C. 2

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

Begin by removing the brackets

4x + 5(-4x - b) = -16x - 5b

-(x - 2) = -x + 2

Add the two binomials together to get the third one

4x -20x - 5b - x + 2 = -17x - 8                 Combine the like terms on both sides

-17x - 5b +2 = -17x - 8                             Add 17x to both sides

-5b + 2 = - 8                                           Subtract 2 from both sides

-5b +2 -2 =- 8 -2                                     Combine    

-5b =  - 10                                               Divide by -5

b = -10/-5

b = 2

The difference between two numbers is 8. Twice the number is 4 more than the larger number. What is the smaller number?

Answers

Answer:

If the two numbers are x and y, then:

x + y = 8

18 - 2x = 4y - 2.

When we subtract y from both sides in our first equation we get:

x = 8 - y, so:

18 - 2(8 - y) = 4y - 2

18 - 16 + 2y = 4y - 2

2 + 2y = 4y - 2

2y = 4

y = 2

Since x + y = 8, and y = 2, x = 6, and since 6 > 2, the larger number is 6.

a bakery sold 208 chocolate cupcakes in a day,which was 25%of the total number of cupcakes sold that day. How many cupcakes did the bakery sell that day

Answers

Answer:

832

Step-by-step explanation:

multiply the 25% by 4

Answer:

Coryxkenshin

Step-by-step explanation:

what is the slope of (1,-3) and (-5,-4)

Answers

Answer:

slope is 1/6

Step-by-step explanation:

a owner increases the rent office house by 5% at end of each year if current its rent is ₹2500pm how much will be the rent after two years​

Answers

Step-by-step explanation:

2500×5%=125

125×2=250

2500+250=2750$

Answer:

2756.25 This is what he will pay going into the third year.

Step-by-step explanation:

This is not as simple as it looks. Is the base number always 2500 no matter how many years go by?

Or do you compound the rent after each Year.

Simple Interest

Rent after the first year

Rent after first year = 2500 + 5%*2500

Rent after first year = 2500 + 125

Rent after first year = 2625

The rent after the second year will be the same.

Compound interest.

Rent after first year is 2625

At the end of the second year it will be 2625 + 2625*5%

Second year payment = 2625 + 2625*5/100

Second year payment = 2625 + 131.25

Second year payment = 2756.25

Equation for (-2,-5) and (1,-3) in slope-intercept form

Answers

Answer:

y=2/3x-11/3

Step-by-step explanation:

First, find the slope.

m= y2-y1/x2-x1

-3+5/1+2 = 2/3

Slope is 2/3

Now, pick one of the coordinates and use that and the slope to put it in point-slope form.

Point slope form: y-y1=m(x-x1)

Let's use (1,-3)

y+3=2/3(x-1)

Distribute 2/3 to (x-1) and simplify to get the equation in slope-intercept form.

y+3=2/3x-2/3

y=2/3x-11/3

Answer:

y=2/3x-11/3

Step-by-step explanation:

use slope formula and slope intercept form. y=mx+b

5. Past experience shows that the standard deviation of the distances traveled by consumers to patronize Chinese restaurants is 2 km. How large a sample is needed to estimate the population mean distance traveled to within 0.4 km

Answers

Answer:

96

Step-by-step explanation:

Given that :

Standard deviation (s) = 2km

Error in estimation is within 0.4 km ; Error (E) = 0.4 km

Using the relation :

Sample size = ((Zα/2 * s) /E)^2

Using α = 0.05

The Zcritical at 0.05 = Z0.025 = 1.96

Sample size = ((1.96 * 2) / 0.4)^2

Sample size = (3.92 / 0.4)^2

Sample size = 9.8²

Sample size = 96.04

Required sample size = 96

what is 1/4(8+x+4) simplified using the distributive property

Answers

1/4(12 + x)
3 + 1/4x
The solution is 3 + 1/4x

Answer:

x4+3

Step-by-step explanation:

i think this is the answer i aint sure tho

1. The temperature was very cold. Then the temperature doubled. Then the temperature dropped by 10 degrees. Then the temperature increased by 40 degrees. The temperature is now 16 degrees. What was the starting temperature? ​

Answers

Answer:

10,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,

Simplify 16 – 1.42 + (–1.5)

Answers

Ok the answer is 13.08..

Answer:

13.8 is the answer ...............

A line has a slope of 9 and passes through the point (4, 5). What is its equation in point-slope form?​

Answers

Answer:

y - 5 = 9 (x-4)

Step-by-step explanation:

Henry decorates the top of each cupcake with 3 walnuts. If he has 56 walnuts, is that enough to decorate 2 dozen cupcakes? Why?

Answers

Answer:

No he does not have enough walnuts

Step-by-step explanation:

So if one dozen cupcakes is 12 then two dozen is 24 and each one has 3 walnuts and he only has 56 walnuts then what you have to do is multiply 24 by 3 and get 72 so the answer is no he does not have enough

Answer:

No, in order to decorate 2 dozen cupcakes(24) he needs 72 walnuts. With 56 he can only decorate 18 cupcakes.

Step-by-step explanation:

How many different triangles ABC can be formed if C=60∘, c=17√3 and a=34?

Answers

Answer:

Jordan, Its been 5 hours, whats the answer?

Step-by-step explanation:

There can be only 1 triangle formed by the given information.

What is triangle?

A triangle is a closed, 2-dimensional shape with 3 sides, 3 angles, and 3 vertices. A triangle is also a polygon.

Given that, ABC can be formed if C=60∘, c=17√3 and a=34

Using the sine law for triangle,

A/sina = B/sinb = C/sinc

34/sina = 17√3/sin60°

⇒ sina = 90°

Since, The triangle ABC is a right triangle,

Hence, There can be only 1 triangle formed by the given information.

For more references on triangle, click;

https://brainly.com/question/2773823

#SPJ2

Solve 4h = 92 for h.

h = ___

Answers

Answer:

H= 23

Step-by-step explanation:

92 divided by 4 will give you 23

Answer:

h = 23

Step-by-step explanation:

Divide each term by 4 and simplify.

-3/4x+9 xccccccccccccccccccccccccccccccccccccccccc

Answers

ummmmm uhhhhh lollllllllll

please answer this :(

Answers

Answer:

X+2 metres. Just use a^+2ab+b^2

5x−7 = 3 help meee plz

Answers

Answer:

5x=3+7

5x=10

X=10/5

=2

What is 5/8 ÷ 3/4 I need to know this please hurry

Answers

Answer:

5/6

Step-by-step explanation:

i used a caculater

BRAINLIEST PLEASE

You hear that tuition is going to increase by 3% next year. If tuition
this
year is $7,200 this year, what will the tuition be next year?

Answers

Answer: $7416

Step-by-step explanation:

You look up 3% of $7200 ($216) and add that to the original price to get $7416 :)

You flip a coin 12 times. What is the probability of getting only one tails in all 12 tries?

Answers are in standard notation

Answers

Answer: Aproxamatly  18.999999999999999

Step-by-step explanation:

3200 dollars is placed in an account with an annual interest rate of 8.25%. To the
nearest tenth of a year, how long will it take for the account value to reach 9600
dollars?

Hello, I come from the deltamath past to help you, in the deltamath future. It’s 13.9

Answers

It takes 24 years for the account value to reach the $9600.
Step-by-step explanation:
From the given data, it can be determined that :
Amount = $9600
Principal = $3200
Rate = 8.25% = 0.0825
Number of years should be calculated.
To find the interest :
Amount = Principal + Interest
Therefore, the interest can be calculated by the formula,
Interest = Amount - Principal
⇒ 9600 - 3200
⇒ 6400
The interest needed is 6400.
To find the number of years required to reach this interest :
Use the formula for simple interest,
Simple interest = Pnr /100
where,
P is the principal
n is the number of years
r is the rate
Substitute all the given values in the simple interest formula,
Simple interest = 3200 × n × 0.0825
6400 = 264 n
n = 6400 / 264
n = 24.2 which is approximately 24 years.
Therefore, it takes 24 years for the account value of 3200 dollars to reach 9600 dollars.
1000 is 20 also YUP yeah

Timed!! Answer hurry!

Answers

45/65 equals .6923, so D is the right answer

What is an equation of the line that passes through the points (-4,-4) and (4,6), answer in fully reduced form.

Answers

Use  

y

2

y

2

x

2

x

1

4

9

2

3

=  

5

1

=

5

Answer link

Jim G.

Jun 11, 2018

y

=

5

x

6

Explanation:

the equation of a line in  

slope-intercept form

is.

x

y

=

m

x

+

b

where m is the slope and b the y-intercept

to calculate m use the  

gradient formula

x

m

=

y

2

y

1

x

2

x

1

let  

(

x

1

,

y

1

)

=

(

2

,

4

)

and  

(

x

2

,

y

2

)

=

(

3

,

9

)

m

=

9

4

3

2

=

5

1

=

5

y

=

5

x

+

b

is the partial equation

to find b substitute either of the 2 given points

into the partial equation

using  

(

2

,

4

)

then

4

=

10

+

b

b

=

4

10

=

6

y

=

5

x

6

is the equation of lineAnswer:

Step-by-step explanation:

Use  

y

2

y

2

x

2

x

1

4

9

2

3

=  

5

1

=

5

Answer link

Jim G.

Jun 11, 2018

y

=

5

x

6

Explanation:

the equation of a line in  

slope-intercept form

is.

x

y

=

m

x

+

b

where m is the slope and b the y-intercept

to calculate m use the  

gradient formula

x

m

=

y

2

y

1

x

2

x

1

let  

(

x

1

,

y

1

)

=

(

2

,

4

)

and  

(

x

2

,

y

2

)

=

(

3

,

9

)

m

=

9

4

3

2

=

5

1

=

5

y

=

5

x

+

b

is the partial equation

to find b substitute either of the 2 given points

into the partial equation

using  

(

2

,

4

)

then

4

=

10

+

b

b

=

4

10

=

6

y

=

5

x

6

is the equation of line

this is due in a few hours can yall help me

Answers

Answer:

18%, 34%, 9/25, 0.25

Step-by-step explanation:

36% = 18%

17/50 = 34%

0.18 = 9/25

1/4 = 0.25

help me with this its super hard

Answers

Answer:

240

Step-by-step explanation:

Because you have to do length times with times height

12 times 10 times 2= 240

Can someone please help me with this question

Answers

Answer:

Eat some mc donolds then ur good

Step-by-step explanation:

Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good Eat some mc donolds then ur good

what is -3 exponent 2 in expanded form?

Answers

Answer:

-3 times -3 that is -4 exponent two in expanded form

Step-by-step explanation:

-3²

= -3 • -3

eg. Expanded form or expanded notation is a way of writing numbers to see the math value of individual digits. When numbers are separated into individual place values and decimal places they can also form a mathematical expression. 5,325 in expanded notation form is 5,000 + 300 + 20 + 5 = 5,325.

Identify the vertex of
y = 2x2 − 4x − 2

Answers

vertex at

(

1

,

4

)

Explanation:

Given:

y

=

2

x

2

+

4

x

2

Convert the given form into "vertex form"

y

=

m

(

x

a

)

2

+

b

with vertex at

(

a

,

b

)

XXX

y

=

2

(

x

2

+

2

x

)

2

complete the square

XXX

y

=

2

(

x

2

+

2

x

+

1

)

2

2

XXX

y

=

2

(

x

+

1

)

2

4

XXX

y

=

2

(

x

(

1

)

)

2

+

(

4

)

which is the vertex form with vertex at

(

1

,

4

)

graph{2x^2+4x-2 [-5.455, 7.034, -5.54, 0

The answer is (1,-4)
Other Questions
"What is the function of the organelle known as the mitochondria" a:to make carbon hydrates b: to make lipids c: to make ATP d: protein synthesis The average number of times each dollar in the money supply is used to purchase goods and services is called:______.a. the fractional reserve system. b. the velocity of money. c. the discount rate. d. the quantity theory of money. [tex]\frac{1}{2} w -5\ \textless \ -2[/tex] Choose a system and make a case for why you wouldor would not choose to solve that system by substitution If my current slope is 7 what is the perpendicular slope?A- -7B-7C- -1/7D- 1/7 9. Which graph can be used to find the solution to the system of equations?y = x-19y = 6x 15 Help pls? I always give brainliest why does rachel say only it's too late after describing her birthday party All persons whatever shall have the free exercise of theirreligion.-Georgia Constitution of 1777,Article LVIThis passage from the constitution relates toO the freedom given to individuals.o the structure of the government.O the need for a fair legal system.O the idea of representative government. Does anyone know the answer to this question will give brainliest Which fnaf character is the scariest?A. Springtrap Fnaf 3 B. Golden Freddy Fnaf 1 C. Nightmare Fnaf 4 D. Ennard Fnaf Sister Location E. Circus Baby Fnaf sister location F. Mangle Fnaf 2 regular payments made to pay off the loan for an item when you buy it on credit Please help everyone trolling me Which division problem is represented with this model?1/561/251/521/62 ? ..............for the girls and the gays :) What type of stereotyping involves treating someone as different from normaland basing their value on that perceived difference?O A. marketingB. assimilationC. exotificationD. invisibility Brainliest to the correct answer. Im stuck more on the question rather than the problem solving at hand if you know what i mean(if not just answer the question pls) Some sentences are better off alone, while others need to be:combinedrewrittendeletedeliminated plz help delete temp or %temp% files in Windows 10 is safe and, can it help boost up your PC fps?yes or no