Mathematics High School

2x + 9y = -7
6x - 3y = 9

2x + 9y = -76x - 3y = 9

Answers

Answer 1

Answer:

Add the equations together

Step-by-step explanation:

The reason why I know this is because they are all like terms so that would be the smartest choice to do first.

If this answer helped you then please mark it as brainliest so I can get to the next rank

Related Questions

Does anyone know this question!??

Answers

Answer:

£213110.48

Step-by-step explanation:

Principal= 200000

Rate = 1.6%

Time = 4 yrs

Amount

= P(1+1.6/100)⁴

=200000(101.6/100)⁴

= 213110.489

= £213110.48

is this table linear or non -linear?

Answers

Answer:

all of them are linear

Step-by-step explanation:

Use the function y=ax, plug x and y into it.

I have just tried it and all of them are linear function.

Sam and Adam share some money in the ratio 2 : 5.
Adam got £12 more than Sam.
Work out how much money Sam received.

Answers

Answer:

£8

Step-by-step explanation:

A

Sam:Adam

2:5

3=£12

12÷3=4

1=4

4×2=8

sam=£8

Is it y=x ??
Pls help

Answers

It's the first one. y can equal x as long as y doesn't equal x multiple times. We also know the last two are wrong because they're saying the same thing. A linear function is a straight line.

a math club has 25 members,of which 11 are males and the rest are females. What is the ratio of males to all cube members ?
​

Answers

Answer:

11/25

Step-by-step explanation:

male population/Total population

Answer:

11 : 390,625

I think

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XYZ will be translated so that the coordinates of X are (5,11)

Answers

Answer: B

Step-by-step explanation:

ACTIVITY SET A
Solve the following problem. Write your an ver at the back
1. 12 flowers to 3 vases. How many flower to 6 vases?

2. 5 books for every 3 pupus. How many books for 9 pupils?

3. The salary of two workers is in the ratio 3:4. They received P 14 70C. How mut tid
each worker received?

4. The ratio of men to women at college is 6 is to 8 How many women students are there if there are 300 men?

5. Mr Reyes has enough money to pay 8 workers for 15 days. If he adds 4 meters,
for how many long can be pay them at the same rate?

pls help I really need answer​

Answers

Answer:

1-24

2-15 books for 9 pupils

3-Worker 1

3x = 3(1,750)

    = 5,250

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

Worker 2

4x = 4(1,750)

    = 7,000

4-368

5-22 days and a half (22.5 days)

Step-by-step explanation:

hope this helps if u need the calclations tell me!

Help!
Which functions graph is shown below?

Answers

Answer:

Sin x so A

Step-by-step explanation:

Please give me brainliest pls. Im begging you I helped.

In which table is y a linear function of x?
X
0
1
4
5
A
8
y
0
5
96
-9
-12
X
0
1
2.
3
4
B В
y
0
7
12
15
16
x
1
0
1
M
©
у
6
8
10
12
14
х
1
1
N
3
4
5
D
32
16
у
4
8
2.

Answers

Answer:

ur answer should be C. But I'm not really sure..

The table in which y is a linear function of x is; Choice C

Linear functions

According to the question;

We are required to identify in what table y is a linear function of x.

The slope of a linear function is always constant.

Hence, By observing the table in Choice C;

Slope = (8-6)/(0-(-1)) = (10-8)/(1-0) = 2.

Hence, since slope of the function is constant, the required table is: Choice C.

Read more on linear function;

https://brainly.com/question/24502219

P and Q form a linear pair. If mP = (7x – 4)º and
mQ = (2x - 5), find the measure of each angle.
Equation
x=
mP =
mQ =

Answers

Answer:

m∠P=143° and m∠Q=37°

Step-by-step explanation:

(2x-5)+(7x-4)=180°

9x-9=180

9x=189

x=21

2(21)-5=37

7(21)-4=143

On Wednesdays at Tara's Taquería four tacos are the same price as three
burritos. Last Wednesday the Lunch Bunch ordered five tacos and six
burritos, and their total bill was $8.58 (with no tax or drinks included).
Nobody in the Lunch Bunch can remember the cost of one of Tara's
tacos. Help them figure it out.

Answers

THE ANSWER IS

0.66

Or for fraction 6/10

aidez moi en math je donne le maximum des points!​

Answers

Step-by-step explanation:

‌[tex]\large \mathcal{Answer}[/tex]

Answer:

Ils sont amicaux, regardez sur le site nosdevoirs

Step-by-step explanation:

Please help find the constant

Answers

The constant rate of change is 2/1

Answer:

the constant or rate of change is 3

Step-by-step explanation:

mark brainliest please

Please help me





Without calculating, predict whether the area of the rectangle will be greater or less than 25 square meters if the length is 5.25 meters.

Answers

Answer:

depends on the other side, so... maybe

Step-by-step explanation:

If you have a rectangle and you know one side is 5.25, then if the perpendicular side looks about the same length or longer, then the area of the rectangle is at least 25.

Imagine you have a rectangle with a known base of 5.25, then if the rectangle is at least as tall as it is wide, then the area is over 25.  If the rectangle is very close to a square then the area should be near 25, and if the rectangle is visually shorter than it is wide then the area is less than 25

i need help with this
​

Answers

I think so.

Hope this help.

How do you write 0.15 as a percentage​

Answers

Answer:

15%

Step-by-step explanation:

move the decimal 2 places because you're dividing by 10

Can somebody plz help answer the rest of these questions correctly (only if u done this before) thx :3

WILL MARK BRAINLIEST WHOEVER ANSWERS FIRST :SD

Answers

Answer:

9. 16.34

10. 51.84

11. 20.11

12. 76.03

13. 64.09

just look up circumference of a circle and you should be able to put the radius in the first thing that pops up :)

What is the volume of a cube with a side length of 3t5units?

Cube V = s3

3t8 units3
9t15 units3
27t15 units3
243t5 units3

Answers

Answer:

C;27t15 units3

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

help me pls i will mark as brainliest

Answers

Answer:

y. = 42

Step-by-step explanation:

The right side of the triangle is 48 and the top part is 90 degrees so then if you subtract 138 from 180 is would be 42

What is the solution to this system of linear equations?
y - 4x=7
2y + 4x = 2
(3,1)
(1,3)
3.-1)
(-1,3)
​

Answers

[tex]y=7+4x\\2(7+4x) +4x=2\\14+8x+4x=2\\14+12x=2\\12x=-12\\x=-1\\\\y-4(-1)=7\\y+4=7\\y=3[/tex]

(-1,3)

A number plus five is eighteen.

Answers

Answer:

n = 13

Step-by-step explanation:

n + 5 = 18

Answer:

13

Step-by-step explanation:

To find the number, subtract 5 from 18:

18 - 5

= 13

So, the number is 13.

Please ONLY Answer #3

Answers

Answer:

yes , keiko is correct.

sin^(-1)x = -sin^1

Answer:

Keiko is wrong

Step-by-step explanation:

Keiko is incorrect

When n is positive, 1^n will always be 1

but........ (-1)^n will not always be -1

This is because there are parenthesis around -1

So n is even, then it will be 1 not -1

For example, n = 4

You will do -1 * -1 * -1 * -1 which is 1 not -1

but if n = 3

You will do -1 * -1 * -1 which is -1

Therefore, the second statement is incorrect resulting in Keiko being wrong

A school orders 25 desks for each classroom,
plus 30 spare desks. The total number ordered
as a function of the number of classrooms is shown
in the graph.
Write the equation represented by the graph

Answers

The equation would be 25x+30. X stands for the number of classrooms which is unknown. And you add on the 30 for the original amount of desks you started out with.

Very confused on how to get the inside variables

Answers

Yes bsbsjwjwjsbshsueu

Juan rides his bike 30 miles in 8 hours. At this rate how many miles does he ride his bike
in 2 hours?
1.8 miles
15 miles
30 miles
7.5 miles

Answers

Answer:

answer is 7.5 miles

Step-by-step explanation:

30/8=3.75 mi in one hour

3.75*2=7.5 miles in 2 hours

hope it helps

Use the vertex of the function (h, k) and the x-intercepts . g(x) = 2 * (x + 3) ^ 2 - 6

Answers

Answer:

Hope this helps

Step-by-step explanation:

functions ! will give brainliest

i got 22 for a but am stuck on b & c :(
please explain what u r doing

Answers

Answer:

b) [tex]f^-1(x)[/tex]= ∛(4x-24)

c)2

Step-by-step explanation:

these ones are inverse functions

change the f(x) for y and make x the subject

y= x³/4 +6

(y-6)x 4 = x³

∛(4y-24)= x

then put x back were y is

[tex]f^-1(x)[/tex]= ∛(4x-24)

and to do c just put in 8 where x is

∛(4(8)-24)= 2

Very urgent. Please help

Answers

It would be (3) because the measure of angle B is simply 180 degrees minus the measure of angle ACD

Answer:

(2) 68°

Step-by-step explanation:

Since the required m angle B = 68°

solve the equation
x^2-7x-34=10

Answers

Step-by-step explanation:

x2-7x-34-10=0

x2-7x-44=0

(x-11)(x+4)=0

x= 11 or x= -4

Answer:

x = 11 or x = -4

Step-by-step explanation:

x^2 - 7x - 44 = 0

-11 + 4 = -7, -11 × 4 = -44

(x -11)(x + 4) = 0 or (x + 4)(x - 11) = 0 Both are same way: O

x = 11 or x = -4 would be the answer : )

help for my assighnment thanks

Answers

Answer:

D

Step-by-step explanation:

Answer:

B and D

Step-by-step explanation:

Just trust me

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