5(x-3y)-2x=6 and x=3y
Solve the equations please by substitution

Answer:

C.) -7/5

Step-by-step explanation:

To subtract fractions, we need to have common denominators. So first, we will change -1 1/5 to -6/5.

Now we will change the denominator of both -6/5 and 1/2 to 10.

We now have:

5/10 and -12/10

5-12=-7

So the answer would be -7/5

If we want to use the number line, we would first find 5/10 (1/2) on the graph and count down (to simulate subtraction) 12 units since we are subtracting by 12. :))

The answer is Ethiopia.

There are 4 countries in the horn of Africa.They are Eritrea,Ethiopia,somalia and Djibouti

Answer:

30.85

Step-by-step explanation:

1. Put the 12.34 on top to make things simpler

then just multiply each number as if the decimals weren't there to begin with.

Your answer should look way too big, but when you finish multiplying count how many decimal places were in the two numbers, for this it would be 3 since there is a 5, 3, and 4 behind the decimal places.

You have to count 3 decimal places in your final answer to get the right solution! Any 0's trailing behind can be removed as well.

Hope this helps!!!

Answer: 30.85

Step-by-step explanation:

This is the answer because you have to straight up your decimal so you can multiply your numbers up right and every time you get ready to add you suppose to add a extra zero.

Answer:

24 is the answer ok 21/7

is 3 and multiply it with 8 that is 24

2]

q = -3

Answer:

0.94

Step-by-step explanation:

Computation for what is the probability that AT LEAST ONE of them has been vaccinated

Based on the information given this is a binomial Distribution therefore Let;

Number of people represent n= 3 people

Population represent p = .61

Using this formula

Probability(AT LEAST ONE vaccinated) = 1 - [ 1*(1-Population vaccinated^People randomly selected)]

Let plug in the formula

Probability(AT LEAST ONE vaccinated) = 1 -[1*(1-.61^3)]

Probability(AT LEAST ONE vaccinated) = 1 - [1×(1-.61^3)]

Probability(AT LEAST ONE vaccinated) = 1 - (1×.39^3)

Probability(AT LEAST ONE vaccinated) = 1 - 0.059319

Probability(AT LEAST ONE vaccinated) = 0.940681

Probability(AT LEAST ONE vaccinated) = 0.94

Therefore the probability that AT LEAST ONE of them has been vaccinated is 0.94

Answer: 19

Step-by-step explanation:

[tex]a-4b\\\\=7-4(-3)\\\\=7-(-12)\\\\=7+12\\\\=19[/tex]

Answer:

x = (z - y)/(a - b)

General Formulas and Concepts:

Algebra I

Step-by-step explanation:

Step 1: Define

ax - bx + y = z

Step 2: Solve for x

Answer:

The solution for x will be:

[tex]x=\frac{z-y}{a-b}[/tex]

Step-by-step explanation:

Given the expression

[tex]ax-bx+y=z[/tex]

subtract y from both sides

[tex]ax-bx+y-y=z-y[/tex]

simplify

[tex]ax-bx=z-y[/tex]

Factor ax-bx = x(a-b)

[tex]x\left(a-b\right)=z-y[/tex]

Divide both sides by a-b;  a≠b

[tex]\frac{x\left(a-b\right)}{a-b}=\frac{z}{a-b}-\frac{y}{a-b};\quad \:a\ne \:b[/tex]

simplify

[tex]x=\frac{z-y}{a-b};\quad \:a\ne \:b[/tex]

Therefore, the solution for x will be:

[tex]x=\frac{z-y}{a-b}[/tex]

Answer:

o,1

Step-by-step explanation:

Answer:

x=5

Step-by-step explanation:

i think you posted this question twice, but here it is:

in order for this figure to truly be a kite, AD and AB have to be equal.

So:

4x=x+15

now we must solve the equation:

3x=15

x=5

Answer:

This is the answer. Do it fast. All the best

Answer:N is 22.5 I think

Step-by-step explanation:

Half of 90 is 45 and N looks like half of P and half of 45 is 22.5

Answer:

x = -1

Step-by-step explanation:

−6x+2=8

Subtract 2 from each side

−6x+2-2=8-2

-6x = 6

Divide by -6

-6x/-6 = 6/-6

x = -1

Answer:

X=-1

Step-by-step explanation:

Perfrom inverse operations

subtratc 2 fro m both sides

-6x=6

x=-1

Answer:

4 aquariums

Step-by-step explanation:

because each aquarium can hold 12 liters and if there is 48 liters total you divide 48 by 12 and get a total of 4 aquariums

Step-by-step explanation:

xy = k, where k is a real constant.

y = 100 when x = 3, therefore (3)(100) = k.

=> k = 300.

Hence when y = 60, x(60) = (300), x = 5.

Answer:

cchhgfhhfhçhuyffffffcghhhh

Answer:

See attached

Step-by-step explanation:

The graph of inequality y ≤ 5/3x - 4 is attached

It is the shaded area to the right of solid line

x-intercept and y-intercept shown

Answer:

Your answer is attached in the answer

Step-by-step explanation:

use this formula

given year/given year=(n-1)/(n-1)

here 6year =2times

3year=4times

6year/2year=(2-1)time/(4-1)time

6/x=1/3

x=18 years

Answer: see attached

Step-by-step explanation:

 From the given properties of the functions,

 Functions given in the picture are 'f', 'g' and 'h'.

From the graph given for function 'f',

y - intercept = 1

Increasing in the interval → (-∞, -0.8] and (0.6, ∞)

Decreasing in the interval → [-0.8, 0.6]

From the table given for the function 'g',

Decreasing in the interval → [-2, 2]

y-intercept = -1

For function 'h',

h(x) = 4x³ + 3

Table of the input-output values for function will be,

x           h(x)

-2         -29

-1            -1

0            3

1             7

2           35

Therefore, function 'h' will increase in the interval → (-∞, ∞)

y-intercept → y = 3

Therefore, from these properties of the functions we conclude,

Learn more,

https://brainly.com/question/13508893

Answer:

3 3/16

Step-by-step explanation:

Length of the box L= 2 1/2m= 1 9/16 W

Width of box W = W

Height H=?

Volume V= 12 3/4m3

If L= 5/2 = 25/16 W

W= 16 × 5/2× 25

W= 80/50= 8/5 = 1 3/5

V= LWH

Hence height =

51/4 = 5/2 × 8/5 × H

H= 51/4 × 10/40 =51/16

H= 3 3/16

Answer:

0.25

25%

Step-by-step explanation:

......................

Answer:

x<(-10)

I hope it will be useful.

Step-by-step explanation:

2x > 3x + 10

Answer:

108 cubes

Step-by-step explanation: 9 times 12 equals 108

9 • 12 = 108 cubes

Answer:

108

Step-by-step explanation:

9×12=108

That's it!

Answer:

3000,

Step-by-step explanation:

5 or above round up, 4 and below keep it the same

Answer:

9

Step-by-step explanation:

Answer:

Step-by-step explanation:

(x+3)/8 = (x+6)/10

x+3 = 8(x+6)/10

x+3 = 4(x+6)/5

x+3 = (4x+24)/5

x +3 = 4x/5  + 24/5

x - 4x/5 =  (24/5)-3

x/5 = 9/5

x = 9