-5х + Зу = -8
3х - 7y = -3

Answers

Answer 1

Answer:

wrong

Step-by-step explanation:

-5x + 3y, you can’t add those together since they aren’t like numbers

3x - 7y, can’t be done either since again, they aren’t like numbers.

like numbers include the same variable or no variable, which means you cant do -5x + 3y but you can to -5x + 3x. you can add those together since both of the numbers have the variable “x” while 3y and 7y have the same variable “y” therefore those can be added together.

since there isn’t a way to add those, both of those answers are not only wrong, but they’re also in simplest form.


Related Questions

Help me with my math**50 pts** i mark brainliest**

Answers

Answer:

3) Reflexive Property

4) SAS

Step-by-step explanation:

ST ≅ TS

1. The Reflexive Property states that: a quantity is congruent (equal) to itself.

Example: a = a  In this case, it could be seen as ST ≅ ST because they have/are the same side(s).RST ≅ UTS

1. SAS theorem states that: two triangles are equal if two sides and the angle between those two sides are equal.

Example: RST ≅ UTS (both have S and T) Can be seen as RST ≅ UST as well to make their similarity more evident.

2. Because it is given that RS ≅ UT and RT ≅ US, and it includes the same 2 lines being equal as given/said, RST ≅ UTS because of SAS (theorem).

12 out of the 50 U.S. states have names that start with a vowel. What percentage of U.S. states' names start with a vowel

Answers

Answer:

24% of the U.S. states have names that start with vowels

Step-by-step explanation:

12 ÷ 50 = 0.24

0.24 × 100 = 24%

Answer:

24 % of the U.S. states' names start with a vowel

Step-by-step explanation:

12 out of 50 vcan be written in math terms as;

12 / 50 which equals the decimal form of a percent as shown;

12 / 50 = 0.24

which in percent form is: 24 %

Complete the table for the given rule.
Rule: y = 5x

Answers

where is the table for this?
is there a picture that is supposed to go with this??

Please help!!!! I don’t understand how to figure it out

Answers

Answer:

(sin x)^2*(sec x) is positive in QII

Step-by-step explanation:

(sin x)^2 is always 0 or positive.  Here x lies in QII.

sec x is positive when the adjacent side is positive and negative when the adjacent side is negative.  In QII the adjacent side is positive.

In summary, (sin x)^2*(sec x) is positive in QII

A cable TV company charges $28 for the basic service plus $8 for each movie channel. Let y be the total cost
in dollars of subscribing to cable TV, using x movie channels. Find the slope-intercept form of the equation.
Look at pic

Answers

Answer:

y= 28x+8

Step-by-step explanation:

Surface Area of 20,70,90 Will give brainliest to correct answer

Answers

Answer:

126000

Step-by-step explanation:

20×70×90

Multiply 20 and 70 to get 1400.

1400×90

Multiply 1400 and 90 to get 126000.

126000

Answer:

126000

Step-by-step explanation:

20×70×90

Multiply 20 and 70 to get 1400.

1400×90

Multiply 1400 and 90 to get 126000.

126000

What does b stand for 11.3 > b/4.3

Answers

Answer:

b = 45.69

Step-by-step explanation:

5 x 5 = 25

25 x 2 & and a half = 45.69

In the inequality expression "11.3 > b/4.3," the variable "b" represents an unknown numerical value.

In the inequality 11.3 > b/4.3, b is the variable.

The inequality is stating that 11.3 is greater than the result of dividing "b" by 4.3.

The purpose of the inequality is to compare the value of 11.3 with the value of "b/4.3" and determine if 11.3 is greater or not.

The variable "b" can take any value that satisfies the inequality.

Hence, in the inequality b stands for unknown value or variable.

To learn more on Inequality click:

https://brainly.com/question/28823603

#SPJ6

Select all the equations that describe each situation and then find the solution.

Kiran’s backpack weighs 3 pounds less than Clare’s backpack. Clare’s backpack weighs 14 pounds. How much does Kiran’s backpack weigh?

Answers

Answer:

Its 11

Step-by-step explanation:

Factorise completely
X^2+7x-18​

Answers

Look at the screenshot below

25, 27, 24, 26, 40
A. What is the mean of the data?
B. What is the median of the data?

Answers

mean is 28.4 (all numbers added together then divided by the amount of numbers)
median is 24 (the middle number)
THE ANSWERS R a. IS 28.4 b. IS 26

What is 82×68 this is very hard

Answers

Answer:

5576

Step-by-step explanation:

Answer: 82 × 68 = 5576~Sweetheart, simply use long multiplication to evaluate, then you get the answer:5576~

Hope you have a good day, Loves!

Also if I'm right can you let me know please?

Also Also if I am right can I have Brainliest??

Which of the following is not a statement?
a) Math is hard.
b) v2 is a rational number.
C) Plants require water to live.
d) Lake Martin is a man-made lake.

Answers

This is tricky maybe C

A ) I am just guessing

isbslw

Determine the ratio of shaded sections to striped sections. Then explain its meaning.

Answers

Answer:

Determine the ratio of shaded sections to the total number of sections. Write the ratio as a fraction in simplest form and as a decimal.

Answer:

3/8

Step-by-step explanation:

Total no. of sections= 8

No. of shaded sections= 3

Therefore, the ratio = 3/8

There is an ample supply of identical blocks (as shown). Each block is constructed from four 1 × 1 × 1 unit-cubes glued whole-face to whole-face. What is the greatest number of such blocks that can be packed into a box that is 6 units tall, 7 units wide, and 8 units deep without exceeding the height of the box?

Answers

Answer:

72

Step-by-step explanation:

The answer is 72 because my teacher gave it to me. I promise i'm legit, and I won't lie. This is the real answer, and if you choose 336, you're probably getting it wrong. That's from Math Olympiad.

PLEASE ANSWER ASAP


Maryam writes down the following 6 numbers
11, 11, 12, 18, 19, A

Maryam works out the mean of the 6 numbers, she then increases the value of a by 60
What will this do to the mean of the 6 numbers?

Answers

It will make it increase by a lot

Use the ruler provided to measure the radius of the circle to the nearest centimeter.
Which measurement is closest to the area of the circle in square centimeters?

Answers

Answer

its B

Step-by-step explanation:

Answer:

43.96 2 cm2

Step-by-step explanation:

Raj weighs a book and rounds the weights to the nearest tenth. Does this weight round to 1.5 pounds?

1.52

Answers

Answer:

True

hope this helps :)

Can you guys help me on the question 4?! :)

Answers

Answer:

Volcanic gray

Step-by-step explanation:

I think because Volcanic Gray and Gray Fox look pretty close to the same color.  Sorry if it is wrong.

D. Volcanic gray I’m pretty sure

Four friends shared 7 chocolate bars. Each of them was given an equal share of the chocolate bars. How many chocolate bars did each person get?

Answers

Answer:

19. 25 chocolate bars

Step-by-step explanation:

77 divided by 4=19. 25

A trapezoid has a base 1 = 6 base = 8 and a height = 3 whats the area?

Answers

Answer:

[tex]area = 21[/tex]

Step-by-step explanation:

Area of trapezoid formula:

[tex]area = \frac{a + b}{2} h[/tex]

Given information:

a: 6

b: 8

h: 3

Using the given information,

[tex]area = \frac{6 + 8}{2} 3[/tex]

Add the numbers in the numerator

[tex]area = \frac{14}{2} 3[/tex]

Reduce fraction with 2

[tex]area = 7 \times 3[/tex]

Answer:

[tex]area = 21[/tex]

Would y^10/y^10 become 1?

Answers

Answer:

yes

Step-by-step explanation:

If you are dividing it will become 1 because 10 minus 10 equals 0. Anything to the power of 0 is 1 then you keep the base which is y so the answer is y

If you are multipling the answer will be y^10  because 10 plus 10 is 20 and you keep the base which is y

PLEASE PLEASE PLEASE PLEASE PLEASE HELP


If sin B= 0.5678, what is the measure of

Answers

Answer:

sin B= 0.5678,

B=sin-¹(0.5678,)

B=34.59°

Jack decides to invest $300 per quarter into an annuity. How long would he have to keep investing if the annuity is paying 8% annually and he wants to accumulate $10,000?

Answers

Answer:

25.95 quarters which is about 6.5 years

Step-by-step explanation:

13. Given f(x) = X – 3 and g(x) = 4x, find f(g(x)).
A. 4x - 3
B. 4x - 12
C. 5x - 3
D. 3x - 3

Answers

Step-by-step explanation:

f(g(x))

= f(4x)

= (4x) - 3. (A)

Step-by-step explanation:

option A is the correct answer according to my opinion .

plz mark my answer as brainlist if you find it useful.

Given an absolute value function f(x)=|x|, what is the effect of adding a constant k to the function?

Answers

Answer: the graph of the resulting function, |x| + k, is the graph of f (x) shifted k units up

Step-by-step explanation:

just took the test

Which equation shows the relationship between d and t?

Answers

Answer:

d=50t

Step-by-step explanation:

for every d, t is d times 50

Top one because 50x2=100 distance

Can someone please help me with my math homework?

Answers

Where’s the picture

Homework due at 12:00 I need HELP. Please!!!

Answers

1= 130 yards

2= 55 yards

3= 25

Solve the equation for all real solutions in simplest form.
3z^2+17z+16=0

Answers

Answer:

[tex]x=\frac{-17+\sqrt{97}}{6}[/tex], [tex]x=\frac{-17-\sqrt{97}}{6}[/tex]

Step-by-step explanation:

Use the quadratic formula to solve for all real solutions.

Quadratic formula: [tex]x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}[/tex]

Plug in and solve:

[tex]x=\frac{-17\pm\sqrt{17^2-4(3)(16)}}{2(3)}\\\\x=\frac{-17\pm\sqrt{289-4(3)(16)}}{2(3)}\\\\x=\frac{-17\pm\sqrt{289-12(16)}}{2(3)}\\\\x=\frac{-17\pm\sqrt{289-192}}{2(3)}\\\\x=\frac{-17\pm\sqrt{97}}{6}\\[/tex]

Since that's the farthest we can simplify to, your answers would be the positive and negative versions of the expression:

[tex]x=\frac{-17+\sqrt{97}}{6}[/tex]

and

[tex]x=\frac{-17-\sqrt{97}}{6}[/tex]

True or false. If 1/4 kg of beef costs $6, then 2/3 kg of the beef costs $16

Answers

that is true. first, find what 1kg of beef would cost. in order to do that, multiply 6 by 4 because 1/4*4=1. 6*4=24. then multiply 24 by 2/3. that will equal $16, so it is true.
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