Mathematics High School

{4x+2y=10
y=2x-1

What is the value of x+y

A.3.125
B.2
C.4.5
D.3.5​

Answers

Answer 1

Answer:

D.3.5

Step-by-step explanation:

4x+2y=10(given)

2x+y=5

y=5-2x-----(1)

y=2x-1------(2)(given)

Since the left side of the equations are the the same,

5-2x=2x-1

4x=6

x=1.5

Sub x=1.5 into eq(1),

y = 5-2(1.5) = 5-3 = 2

so, x+y = 1.5+2 = 3.5

Answer 2

Answer:

4x+2y=10

y=2x-1

4x+2(2x-1)=10

4x+4x-2=10

8x=10+2

8x=12

8x÷8=10÷8

x=1,25

&

y=2x-1

=2(1.25)-1

=1.5

x+y=1.25+1.5

=2,75

Related Questions

If the zeros of a quadratic function are 3 and 8, what are the factors of the function?

A.
(x + 8) and (x − 3)
B.
(x − 8) and (x + 3)
C.
(x + 8) and (x + 3)
D.
(x − 8) and (x − 3)

Answers

It’s D. You basically plug it in to x and whatever equals 0 is the correct answer

Answer:

D

Step-by-step explanation:

one way to write a quadratic equation is using the y = (x-s) (x-r) where r and s are positive zeros. another way to solve this and think about it would be to plug in your points and equate both sides. 

example:(3,0) (8,0)0 = (3-8) (3-3)0 = 00 = (8-8) (8-3)0=0

Need help ASAP


You don’t need to explain, pls respond as fast as possible. Thank you

Answers

Answer:

One is 8x+12y= 112

Step-by-step explanation:

I don't know if it's right tho. SO don't come at me.

your answer is correct

Which is equivalent to 80 1/4x

Answers

Answer:

20x

Step-by-step explanation:

[tex]\frac{80}{4}=\frac{20}{1}=20[/tex]

The answer is 20 i think

f(x) = { x + 7 and g(x) = -x + 7
What transformation occurs from function f to function g?

Answers

Answer:  Reflect over the y axis

=====================================================

Explanation:

We have these two given functions

f(x) = x+7g(x) = -x+7

The change is that the x has been replaced with -x

We can say

f(x) = x+7

f(-x) = -x+7 ... replace each x with -x

g(x) = f(-x)

g(x) = -x+7

When we replace x with -x, we're flipping the x inputs from positive to negative, and vice versa. This visually will reflect the line over the vertical y axis. A point like (1,8) on f(x) reflects over to (-1,8) on g(x).

As another example, the point (-5,2) on f(x) reflects over the y axis to arrive at (5,2) on the g(x) function.

Me need help :( plz help :(((

Answers

With what? You didn’t give any context ?

Answer:

ok ill help! :D

Step-by-step explanation:

Acircle with radius of 2 cm sits inside a llcm x 12 cm
rectangle.
What is the area of the shaded region?
Round your final answer to the nearest hundredth.

Answers

Meowing meow meow explain: meow meow

Answer:

119.4

Step-by-step explanation:

The Area of the Rectangle : 132 cm

Area of the Circle : 12.6 cm

Shade=  MINUS - 132 cm  - 12.5 cm = 119.4!

Happy To Help! :)

What’s the
mean
Median
Mode
To this question up there

Answers

Answer:

mean: 4.5 (1dp)

median: 4

mode: 6

Step-by-step explanation:

mean:

0 + 1 + 1 + 2 + 2 + 2 + 2 + 3 + 3 + 3 + 4 + 4 + 4 + 5 + 5 + 6 + 6 + 6 + 6 + 6 + 7 + 8 + 8 + 9 + 10 = 113

113 divided by 25 = 4.52, or just 4.5 (rounded to one decimal place

median:

(middle) = 4

mode:

(most occurring) = 6

Hi teh pede ba aq paturo sa math


a number cube has sides labeled 1 to 6. Gia rolls the number cube. What is the probability that she rolls a 4

A.) 4/6
B.) 1/6
C.) 1/3
D.) 2/3

Answers

for this one, think: how many 4s are on a number cube? and then think how many numbers in total are on a cube? then set it up so the number of 4s is over the total numbers

pls help me I know this is easy I’m just not smart

Answers

Answer:

4

Step-by-step explanation:

Given :

5c+cd where, [tex]C=\frac{1}{5}[/tex]  and d=15

Now,

5×[tex]\frac{1}{5} +\frac{1}{5} (15)[/tex]

=1+3

=4

Answer is 4

order from least to greatest : 15%,0.015,1/5

Answers

Answer:

the order from least to greastest is 0.015,15%,1/5

Step-by-step explanation:

If helps mark as Brainllest!!!

Hola necesito la respuesta a esta pregunta: 1) En la definición de potencia, la base: * a) corresponde al número de veces que se repite la base como factor b) corresponde al número que se multiplica por si mismo c) Corresponde a un número que se multiplica por otro d) Corresponde a un número que se suma varias veces

Answers

Answer:

B. Corresponde al número que se multiplica por sí mismo.

Step-by-step explanation:

Matemáticamente hablando, la base de una potencia se refiere a un número que se multiplica por si mismo por el número de veces definido por el exponente. En consecuencia, la respuesta es B.

Someone pls help me ill give out brainliest pls don’t answer if you don’t know

Answers

Answer:

16.5

is the rational number between them

Step-by-step explanation:

what is 34454+55553 quickly what is 34454+55553​

Answers

Step-by-step explanation:

90007

this is your answer

hope it is helpful to you

Answer:

90007

Step-by-step explanation:

the power of the calculator

Your school has raised $3,920 from this year's magazine drive. Your grade is planning a field trip. One bus costs $700 and one ticket costs $70. Write an equation to find out how many tickets you can buy if you take only one bus.

Answers

Answer:

Number of tickets= 46

Step-by-step explanation:

Giving the following information:

Your school has raised $3,920 from this year's magazine drive. Your grade is planning a field trip. One bus costs $700 and one ticket costs $70.

First, we need to calculate the amount left after the bus is paid:

Money for tickets= 3,920 - 700

Money for tickets= $3,220

Now, the number of tickets that can be bought:

Number of tickets= 3,220 / 70

Number of tickets= 46

Decimal point strategy question please help and fill in the blanks.

Answers

Answer:

Step-by-step explanation:

Triangle DEF is congruent to TriangleGHJ by the SSS theorem. Which rigid transformation is required to map TriangleDEF onto TriangleGHJ? dilation reflection rotation translation

Answers

Answer:

Translation

Step-by-step explanation:

Transformation is the movement of a point from its initial location to a new location. Types of transformation are rotation, reflection, translation and dilation.

Rigid transformation are transformations that preserve the shape and size of an object. That means that they produce an image which is congruent to the object. Examples of rigid transformation is rotation, reflection and translation. Dilation is not a rigid transformation because it does not preserve the shape and size of the object.

From the image attached, we can see that Triangle DEF is translated to the right and downwards so as to map triangle DEF onto triangle GHJ

Answer:

D. Translation

Step-by-step explanation:

1250 people visit a certain website every day. At this rate, how many visitors will the site receive in a week?

Answers

Answer:

8750 people

Step-by-step explanation:

1250 * 7   (7 days in a week)

8750 people

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

HELP ME PLSSSS I NEED HELP

Answers

Answer:

D

Step-by-step explanation:

Its kinda self-explanatory, just look at the points

Find the value of x.

Answers

x= 13.3

ajfalbfljhbfljahbfljhwbfr

D. X=13.3

well i hope this helped!!

Please help I need help in order to pass math

Answers

Answer:

....bbbbbb.... its correct

it takes 1/3 cup of water to fill 3/4 of a container how much water in cups will the full container hold?

Answers

Answer:volume of container:  v.  Then (2/3)v=(1/2) cup.  Solving for v,

       1/2 cup        1 cup         3

v = -------------- = --------- * -------- = 3/4 cup (answer)

         2/3                 2           2

Step-by-step explanation:

In an analysis of variance problems,there are 3 treatments and 10 observations per treatment,the sum of squares for the error is 399.6.What is the mean square for the error for this situation

Answers

Answer:

The answer is "14.8".

Step-by-step explanation:

[tex]n = 30\\\\ k = 3\\\\dfE = n-k \\\\[/tex]

       [tex]= 30-3 \\\\= 27[/tex]

[tex]SSE = 399.6 \\\\MSE = \frac{SSE}{dfE}[/tex]

          [tex]= \frac{399.6}{27} \\\\ = 14.8[/tex]

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Answers

Answer:

>

Step-by-step explanation:

8/3=8.6666666667 which is greater than 2.666

Someone please help!!! I also posted other questions if you want more points!!!

Answers

Answer:

3/2

Step-by-step explanation:

3y + 2x = 12

subtract 2x from both sides

3y = -2x + 12

Divide both sides by

3

y = (-2/3)x + 4

Slope = -2/3

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

Slopes of perpendicular lines are negative reciprocals

The negative reciprocal of -2/3 is

3/2

Determine the coordinates of the midpoint M of segment AB when A(-4,4) and B(5,-1). Leave your answer in fraction form.

Answers

Answer:

(0.5, 1.5)

Step-by-step explanation:

(x1 + x2 /2, y1 + y2/2)

(-4 + 5 / 2,   4 - 1/2)

(1/2, 3/2)

PLEASE HELP!! This is timed, but I don't recall ever learning this info T-T
I'll mark brainliest!!

Answers

Answer:

c

Step-by-step explanation:

i hope it helped ᘳ◕ᴥ◕ᘰ

Answer correctly please !!!! Will mark Brianliest !!!!!!!!!!!!!!

Answers

Answer:

100π

Step-by-step explanation:

Area of a circle formula: πr²

The radius would be half of 20 m

So the radius, r is 10 m

Plug that in

πr²=π·10²=100π

Answer: 100 pie
Explain: very good at math

Someone please help me with this question

Answers

Step-by-step explanation:

f(x) =x²+2

f(5)=5²+2

f(5)= 25+2

f(5)= 27

I will give Brainly

What is 3x^2 - 5x^3 (5 + 7)?

Answers

Answer:

-60x^3+3x^2

Step-by-step explanation:

I need a brainly please

HELP PLEASE, AND FAST THANKS

Answers

Answer: U'(1,7)      G'(7,1)

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