Mathematics High School

54 POINTS: PLS HELP ASAP !!

Solve the following system of equations using the substitution method.

6x + 3y = 15
y = 1 - x

A. (3,-4)
B. (-3,4)
C. (4,-3)
D. (-4,3)

Answers

Answer 1
You love the y into the why so 1-x will go to y so it’s would be 6x+3(1-x)=15
6x+3-3x
6x-3x= 3x
3x+3=15
-3. -3
3x=12
3. 3
X=4
Answer 2

Answer:6x+3-3x

6x-3x= 3x

3x+3=15

-3. -3

3x=12

3. 3

X=4

Step-by-step explanation:

Related Questions

Can you help me please ​

Answers

Answer:

Step-by-step explanation:

y=kx

where k is a constant.

6=-4k

k=-6/4=-3/2

y=-3/2 x

ANSWER QUICK PLS Expand the expression: -11 (3c - 2d) using the Distributive Property

Answers

-11.3c-11.2d= -11.1cd

simplfy
(9b + 5) + (3b – 6)

Answers

Your answer is 6b - 1

Solve equation by using the quadratic formula.
2 x squared minus 5 x = 7
a.
x = StartFraction 2 Over 7 EndFraction, negative 1
c.
x = StartFraction 7 Over 2 EndFraction, negative 1
b.
x = StartFraction 2 Over 7 EndFraction, 0
d.
x = StartFraction 2 Over 7 EndFraction, 1

Answers

Answer:

Do you need all of them?

Step-by-step explanation:

Answer:

C) x=7/2,-1

Step-by-step explanation:

just took the pretest got this right

1 (x + 4) = 20
x = 48
Help please.

Answers

Answer:

X actually equals 16 becaausw if yiu add 16+4 you get 20 and then you have to multiply 20 by 1 and you get 20 so x=16

Answer:

x = 16

I dont quite understand the x = 48 situation? But thats wrong if that's your answe

Step-by-step explanation:

So you have to find out what x is

in order to do that you have to work out the equation and whatever you do to one side you must do to the other side

simplify 1(x+4) = 20

x + 4 = 20

in order to get rid of 4 on one side you have to subtract it on both sides

so x = 16

The options for A , B , C , and D will be below:


A : 2 , 4 , 6 , 0 , 1 , 8

B: 2 , 4 , 6 , 0 , 1 , 8

C: 2 , 4 , 6 , 0 , 1 , 8

D: 2 , 4 , 6 , 0 , 1 , 8

Answers

Answer:

8  4  2  0

Step-by-step explanation:

Expression A: 4x + 5 Expression B: 2 + 4x + 3 Which statement can be used to show that these expressions are equivalent?

Answers

Answer:

Step-by-step explanation:

Boris chosen three different numbers. The sum of the numbers is 36. One of the numbers is a cube number the other two numbers are factors of 20. Find the three numbers chosen by Boris. Write the numbers in ascending order

Answers

Answer:

27,4,5

Step-by-step explanation:

27³=3

4×5=20

27+4+5=36

Mary got a sales job at her father's company. She was paid $9 per hour plus a 5%commission on her sales. Last week sheworked 40 hours with sales of $5560. How much was she paid?

Answers

Answer:

Mary was paid $638

Step-by-step explanation:

Mary was paid 360 $ for working alone because

$40 * 9 = $360

Mary was paid $278

5 % * $5560 = $278

360 + 278 = 638 $

Part D
Qulana made five equal montly payments from her bank account. Which rational number shows something being removed five times?

Answers

Answer:

-5 is the answer!!!!!

Step-by-step explanation: it jist is

Answer:

-5

Step-by-step explanation:

its negative 5

Brainlist for correct answer!

Answers

Answer:

answer is c

Step-by-step explanation:

the answer is B.b=5.5mA=70.8mc82.2

A popular Web site reached 7.5 million users during the week of March 7, 2011. This number represents a 33 percent increase from the week before. How many users did the Web site have the week before?

Answers

Answer:

5.7 million

Step-by-step explanation:

Let the number of users be x

x + 33% of x = 7.5 million

x + 0.33x = 7.5 million

1.33x = 7.5

x = 7.5/1.33

x = 5.7 million

(BRAINLIESTTTTT PLS ANSWERRRR DUE IN 5 MINS!!!!) Michelle and Cameron are selling popcorn for a school fundraiser. Michelle sold 10tins of cheese popcorn and 8tins of caramel popcorn for a total of $446. Cameron sold 22tinsof cheese popcorn and 11tins of caramel popcorn for a total of $803. Write a system of equations to determine the cost one tin of cheese popcorn and one tin of caramel popcorn. Show all your work.

Answers

one tin of cheese 20$ and one tin of Carmel 27$

2. A diagonal shortcut across an empty
rectangular lot is 97 feet. The lot is 72
feet long. What is the other dimension of
the lot?
A 65 feet
C 120.8 feet
B 84.5 feet
D 169 feet

Answers

Answer:

D

Step-by-step explanation:

i added it

help pls :( DO IT FOR A NUGGET

Answers

Answer:

natural numbers. they are also called counting numbers. hope this helps :)

if the answer is supposed to start with “Wh” then whole number would work

Pls help me!
It’s Aleks homework 5.3

Answers

You have to cross multiply.

Step 1. Y x 13= Y13
Step 2. 7 x 4= 28
Step 3. set it equal to each other: 28=Y13
Step 4. 28/13= 2.2

Y= 2.2 is your answer

En el mes de abril en la cancha Toto Hernández de Cucuta, habrán encuentros de
Basquetbol cada 5 dias y de balonmano cada 4 dias. Qué dia del mes coincidiran
nuevamente los dos deportes si inician el 3 de abril.​

Answers

Brian’s and the other side is not a big problem with it all I think it is mommy Angela Angela leaving the bath so

At the class party, each student will be given a container filled with 8 5/8
ounces of juice. There are 25 students in the class. How many ounces of juice
does the teacher need to buy?

Answers

Answer:

215 5/8 ounces of juice

Step-by-step explanation:

The cost
C
, in £, of a monthly phone contract is made up of the fixed line rental
L
, in £, and the price
P
, in £ ,of the calls made. Enter a formula for the cost and, enter the cost if the line rental is £20 and the price of calls made is £12.

Answers

Answer:

Uhejfiwiesijdhdusidhd

Answer:

Step-by-step explanation:

its 18

the sides lenghths of a triangle are 9, 12, and 18 is this a right triangle?​

Answers

Answer:

By virtue of the Pythagorean Theorem, in a right triangle the sum of the squares of the smaller two sides equals the square of the largest side. Only 9, 12, and 15 fit this rule.

please help me thank you

Answers

Answer:

7<x<14

Step-by-step explanation:

Answer:

heh heh that's a hard one

For the 1,000-meter running event, Abby's mean time is 4.5 minutes with a standard deviation of 0.75 minutes. For the 800-meter event, Abby's mean time is 3.2 minutes with a standard deviation of 0.4 minutes. In the last track meet, Abby ran the 1,000-meter race in 4.1 minutes and the 800-meter race in 3 minutes. In which event did Abby have a better performance?

Answers

Answer:

He performed better in the 800 m race

Step-by-step explanation:

Obtain the standardized score for each event :

Zscore = (score - mean) / standard deviation

1000 meter :

Mean = 4.5 ; Standard deviation = 0.75 ; x = 4.1

Zscore = (4.1 - 4.5) / 0.75

Zscore = - 0.4 / 0.75 = - 0.5333

800 meter :

Mean = 3.2 ; Standard deviation = 0.4 ; x = 3

Zscore = (3 - 3.2) / 0.4

Zscore = - 0.2 / 0.4 = - 0.5

-0.5 > - 0.533

Hence, he performed better in the 800 m race

Answer:

Abby had a better performance in the 800-meter because this z-score was closer to the mean than the z-score for the 1,000-meter.

Step-by-step explanation:

did it on egde

Find the slope of a line parallel to each given line. y=-5/3x+5

Answers

Answer:

m= -5/3

Step-by-step explanation:

M= slope

To find slope, you do y= mx + b

Answer:

[tex]\boxed {\boxed {\sf m= -\frac{5}{3}}}[/tex]

Step-by-step explanation:

First, identify the slope of the line given.

[tex]y= -\frac{5}{3}x+5[/tex]

This line is in slope-intercept form or y=mx+b where m is the slope and b is the y-intercept. The number being multiplied by x is the slope. The number being added or subtracted is the y-intercept.

-5/3 is the coefficient to x (-5/3 and x are being multiplied). So, the slope must be -5/3.

Next, remember that parallel lines have equal slopes. If the line is parallel to y= -5/3x+5, the slope must also be -5/3.

Please help I will mark you as brainlist it’s emergency

Answers

Answer:

d

Step-by-step explanation:

jayfeather friend me

Answer:

35+27n

Step-by-step explanation:

hope this helps lol D is the correct answer

find the inequality by the graph​

Answers

Answer:

[tex]y>\frac{1}{3} x - 3[/tex]

Step-by-step explanation:

So we first look at the dotted line in the graph, which is [tex]y=\frac{1}{3}x-3[/tex]. Next, we see that the blue area is the area above the line, so it should be [tex]y>\frac{1}{3} x - 3[/tex].

f(x) = 2^x


what is the domain ?
range ? asymptote ? and transformation

Answers

y=2x

Step-by-step explanation:

I dont know what else there is sry

2) pls help me determine the value

Answers

Answer:

The answer is B

Step-by-step explanation:

When you add two negatives together you get a negative

can someone help me on this ???

Answers

Answer:

x=4x-16 is what you get after you distribute

Step-by-step explanation:

2 by 2 is 4

2 by 8 is 16

the last one x=4x-16

Jose has scored 851 points on his math tests so far this semester. To get an A for the semester, he must score at least 950 points.

Answers

Answer:99

Step-by-step explanation:

This answer is 99. If Jose has scored 851 points and he needs 950, you subtract 950-851 which is 99. He needs 99 more points to obtain an A.

Answer:

99

Step-by-step explanation:

trust me.........................

Select the correct solution for the expression.

2
5
+
3
8

Answers

Answer:

25+38= 63

Step-by-step explanation:

Used a calculator.

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