Mathematics High School

Solve the following system in any
manner.
4x + 8y = -3
6x + 12y= -7
Can someone please help me with this?

Answers

Answer 1

Answer:

No Solution.

Step-by-step explanation:

4x+8y=-3

6x+12y=-7

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

3(4x+8y)=3(-3)

-2(6x+12y)=-2(-7)

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

12x+24y=-9

-12x-24y=14

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

0=5

no solution.

Related Questions

Find the measure of the given angles. Show work!!

Answers

Answer:

m∠A = 45⁰

m∠B = 75⁰

Step-by-step explanation:

Given question 4;

m∠A = x + 51

m∠B = 81 + x

m∠C = 60⁰

The value of the missing angles can be determined by the finding the value of x first;

m∠A  +  m∠B  + m∠C = 180⁰ (sum of angles in a triangle)

(x + 51)  +  (81 + x)  +  60⁰ = 180

(x + x) + (51 + 81 + 60) = 180

2x + 192 = 180

2x = 180 - 192

2x = -12

x = -12/2

x = -6

Thus, the values of the angles are calculated as follows;

m∠A = x + 51

         = -6 + 51  

          = 45⁰

m∠B = 81 + x

        = 81 - 6

         = 75⁰

i thought of an integer.if i multiply it by itself you will get 9.What is my number

Answers

the number is 3 because 3 multiplied by itself (3) is equal to 9.

Answer:

Your number is 3

Step-by-step explanation:

3*3 is 9 and there are no other numbers multiplied by itself to get 9

Estimate the percent using decimals.
48% of 400

Answers

Step-by-step explanation:

getcalc.com's fraction to decimal calculator to find what's an equivalent decimal for the fractional number 48/400.

50/400 0.125 12.5%

49/400 0.1225 12.25%

48/400 0.12 12%

47/400 0.1175 11.75%

Answer:

fraction to decimal calculator to find what's an equivalent decimal for the fractional number 48/400.

0.12 is a decimal and 12/100 or 12% is the percentage for 48/400.

Step-by-step explanation:

A fraction consists of two numbers and a fraction bar:

48/400

The number above the bar is the numerator: 48

The number below the bar is the denominator: 400

Divide the numerator by the denominator to get fraction's value:

Val = 48 ÷ 400

Introduction. Percent, p%

'Percent (%)' means 'out of one hundred':

p% = p 'out of one hundred',

p% = p/100 = p ÷ 100.

Calculate fraction's value.

Divide the numerator by the denominator to get fraction's value:

48/400 =

48 ÷ 400 =

0.12

Note:

100/100 = 100 ÷ 100 = 100% = 1

Multiply a number by the fraction 100/100,

... and its value doesn't change.

Calculate the percent value:

0.12 =

0.12 × 100/100 =

(0.12 × 100)/100 =

12/100 =

12%;

Hope it is helpful...

REALLY TOUGH QUESTION, PLZ HELPPPPPPP!!!!!!!!!!!!!!!!!!!!!!!!









Whats 9+10

Answers

Answer:

21

Step-by-step explanation:

na na jk 19

is -6/3 and integer? dont guess ;( helppp

Answers

Answer:

no because

Fractions and decimals are not integers. All whole numbers are integers (and all natural numbers are integers), but not all integers are whole numbers or natural numbers. For example, -5 is an integer but not a whole number or a natural number.

-6/3 is not an integer.

What is Number system?

A number system is defined as a system of writing to express numbers.

We need to check whether -6/3 is a integer or not .

An integer is a whole number (not a fractional number) that can be positive, negative, or zero.

The given number is a fraction which is not comes under the integers.

All whole numbers are integers but  but not all integers are whole numbers or natural numbers.

If the fraction is simplified we get -2 which will be an integer but the fraction form is not considered as integer.

Hence, -6/3 is not an integer.

To learn more on Number system click:

https://brainly.com/question/2204604

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Evaluate rg + 2d when r = 3, g = 5, and d = 2

Answers

Answer:

rg+2d= 12

Step-by-step explanation:

(3+5)+2(2)

8+4=12

PLEASE HELP!!! 100 points!!!

Suppose that baby grand piano cost $8000 and looses 15%
in value each year. What would be the value of the piano in
12 years? Round your answer to the nearest hundred.
A.) $1137.93
B.) $1274.88
C.) $1078.44
D.) $5780.00

Answers

Answer:

A

Step-by-step explanation:

If it loses 15% of its value every year, then each subsequent year will be worth 85% of the previous year. If we think of this as a geometric series, then the worth would be 8000(.85^t) where t is years after the first year. If you plug in 12, then it's 1137.93.

Answer:

1137.93 is the answer

Step-by-step explanation:

PLS someone do this it would reallymean alot

Answers

Answer:

For the first question all u doing is removing the parenthesis

So answer is z to the third power

B is 9y to the 4th power

there are 9 balls in a bag. 6 are blue, 3 are red. jenny pulls two balls out without replacement.
a) what is the probability of picking exactly one blue ball?
b) what is the probability of picking at least one blue ball?​

Answers

You want to find out the number of blue balls so what you do is
No of blue balls/ total number of balls in a bag
6/9= 0.7(1dp)

Pls help I’ve tried everything and nothing is helping me lol. 25 points

Answers

Answer: Is this the whole question if not i can edit later and answer once i get it all?

There are 3.5 cookies. How can the cookies be divided into .25 pieces?

a. 4 pieces
b. 140 pieces
c. 3.5 pieces
d. 14 pieces

Answers

Answer:

d. 14 pieces

Step-by-step explanation:

3.5 ÷ 25 = 0.14 = 14

cuz the 0. doesn't have a value

The answer is D. 14 pieces.

a:b = 4:3 b:c =2:7 What is the ratio a:c

Answers

Answer:

4:7

Step-by-step explanation:

a:b:c=12:6:21

Write an equation of the line in slope intercept form and with the following characteristics. Slope = 1/8 y intercept =14

Answers

Y=1/8x+14
Just plug it in into y=Mx+b form (m is slope, b is y- intercept)

help please!
First three terms of a sequence is shown below. Determine if the sequence is geometric. If so, state the common ratio.

30, 10, 103, ...

a.The sequence is geometric, and the common ratio is 13.


b.The sequence is geometric, and the common ratio is 3.


c.The sequence is geometric, and the common ratio is -20.


d.The sequence is not geometric.

Answers

Answer:

Step-by-step explanation:

The common ratio is a constant found by dividing any term by the previous term.

10/30=1/3

103/10=10.3

Since those fractions are not equal this is NOT a geometric sequence.

If you could just give me answers for 5-d for easy points.

Answers

Answer:

a) per year

Step-by-step explanation:

Hope this helped! Have a nice day! Plz mark as brainliest!!!

-XxDeathshotxX

What is the unit rate of 48 newspapers in 6 piles?

Answers

Answer:

[tex] \sf8 \: \frac{newspapers}{plie}\: or\: \text{8 newspapers per pile} [/tex]

Step-by-step explanation:

to understand thisyou need to know about:unit ratelet's solve:

according to the question

48newspapers/6piles8 newspapers/plie

Answer:

Solution given:

48 newspaper in 6 pile=48news paper per 6 piles

=48/6=8 news paper per pile

the unit rate of 48 newspapers in 6 piles is 8 news paper per pile

Just say yes if equivalent or no if not equivalent

5x and x + 5

Answers

Answer:

I am pretty sure there equivalent

Solve the system using substitution: {y=5x-21 y=-7x+15

Answers

Answer:

code lazar

Step-by-step explanation:

Reading the sentence below what keyword tells you that this is proportional. Please help I’m stuck!!

Answers

Answer:

Steady

Step-by-step explanation:

I understand how you can get confused on this but steady is your keyword because steady means at a proportional rate and has not drastic changes if graphed on a number line.

A fountain holds 12500 7/8 gallons of water. Joe wants to calculate how many liters that is. Which proportion could he use to solve for the number of liters? (1 gal = 3.79 L)​

Answers

Answer:

47378.31625 Liters

Step-by-step explanation:

A fountain holds 12500 7/8 gallons of water. Joe wants to calculate how many liters that is. Which proportion could he use to solve for the number of liters? (1 gal = 3.79 L)

From the above question,

1 gallon = 3.79 Liters

12500 7/8 gallons = x Liters

Cross Multiply

x Liters = 12500 7/8 × 3.79 Liters

x = 47378.31625 Liters

Therefore, the number of liters of water in the fountain is 47378.31625 Liters

Which is the slope of the line that passes through the points (2, 8) and (4, 6)?​

Answers

Slope: (y2-y1)/(x2-x1)
(6-8)/(4-2) = -2/2 = -1
The slope is -1

Answer:

Step-by-step explanation:

The slope would be -1

9 slices from 1 cake =
slices from 2 cakes

Answers

Answer:

18?

Step-by-step explanation:

Well uh since it's 2 cakes wouldn't you multiply 9 by 2?

I mean I tried given the little information in the question so

Correct me if I’m wrong I think it’s 18

Which expression is equivalent to
n-4n- 3(2n + 1)?

A. -9n + 3
B. -9n + 1
C. -9n-3
D. -6n-3

Need the answers fast plzzzz

Answers

C. -9n-3

Steps:

1. distribute the -3: -3(2n+1) = -6n-3
2. combine like terms: n - 4n -6n= -9n
3. write your final answer: -9n-3

the length of a chord of a circle is 24 cm long and is 5 cm away from the center of the circle what is the radius of the circle​

Answers

Answer:

13

Step-by-step explanation:

radius of the circle​ (r) = √12²+5² = √169 = 13

PLEASE HURRY

the graph of g(x) =x -5 is a translation of the graph of the parent function 5 units

Answers

Answer:

the answer is: 8(x)= 4 -5

Step-by-step explanation:

The graph of parent function and translated function are given below. Therefore, the transformation is shifted down 5 units.

The given function is g(x)=x-5.

What is the translation?

A translation in math moves a shape left or right and/or up or down. The translated shapes look exactly the same size as the original shape, and hence the shapes are congruent to each other. They just have been shifted in one or more directions.

Here, parent function is g(x) = x

To find the transformation, compare the function to the parent function and check to see if there is a horizontal or vertical shift, reflection about the x-axis or y-axis, and if there is a vertical stretch.

Shifted down: 5 units

The graph of parent function and translated function are given below. Therefore, the transformation is shifted down 5 units.

To learn more about the translation visit:

https://brainly.com/question/12463306.

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A container contains 3 yellow, 2 orange, and 4 pink roses. Without looking, if James chooses a rose from the container, what is the probability that James will select an orange rose?

Answers

Answer:

Orange rose = 2/9

Step-by-step explanation:

In order to find probability of picking one item, you add all the possible things you could choose. So, 3+2+4 equals a total of 9 outcomes, and that would be your denominator for your fraction of probability. From there it's really easy. Just put the amount of things your trying to find the probability for in the numerator spot.

Ex.

There are 9 total roses so that would be the denominator (?/9)

To find out the probability for picking an orange rose, you'd put the 2 in as the numerator because that is the total number of orange roses you have (2/?)

Then just put the two together (2/9).

What is the area of this compound shape?

Answers

Answer:

139.36

Step-by-step explanation:

first you do 8*8 because that would be the area of the square part

8*8=64

then find the area of the semicircle

first the Radis of it is 4 because 8/2=4

A=3.14R^2/2

3.14*4^2/2

3.14*16/2

50.24/2

25.12

now because there are 3 of the semicircles you do

25.12*3

75.36

then you add the 64 from the square to get your answer

75.36+64

139.36

Help please i beg you​

Answers

Answer:

its easy

use this formula

the right one is the solution of question number 1

Step-by-step explanation:

Which of these represents an integer?
a. -3 b. 4 c. 2 1/2 d. 6.2

Answers

B is the answer!!!!!!!!!!!!!!!!!!!!!!!!!

Tonya pays $300 each month to rent an office where she earns $25 per hour tutoring students. Which equation represents Tonya’s profit, y, for working
x hours?

Answers

Answer:

y = 25x – 300

Step-by-step explanation:hope I helped

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