Please help with algebra!!! ill give brainliest
linear equations with one variable (show work)
9 equations

Answer:

Step-by-step explanation: 2 plus 5

7 <50

Answer:

x = 22.5

Step-by-step explanation:

2x + 5 > 50.

We do inverse operations sooo:

2x + 5 - 5 > 50 - 5.

50 - 5 = 45.

Then we do 2x ÷ 2 and 45 ÷ 2.

45 ÷ 2 = 22.5.

To check our answer to see if its right we do 22.5 x 2 which equals 45. Then we do 45 + 5 which equals 50. So the sign is wrong it should be greater than or equal to.

Answer:

x = 7

Step-by-step explanation:

12x - 66 + 15 = 3x +12

12x - 51 = 3x + 12

9x = 63

x = 7

Answer:

1. A

Step-by-step explanation:

You would need to multiply 20 times 60, which equals 1800, then divide 1800 by 300 which will get you 4 halves, then make them wholes and you get 2

The expression 1.5y - 6  can be factored as  1.5(y-5).

A factor is a number which entirely divides another number.

Let 8 is a number, so there 2 and 4  are factors of it.

The given expression is,

1.5y - 6

The expression can be rewritten as,

1.5y - 1.5×4

Take 1.5 common from each term,

1.5(y-5)

The expression 1.5y - 6  can be factored as  1.5(y-5).

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Answer:

2.4x-4.4

Step-by-step explanation:

0.3(4x-8)=1.2x-2.4

-0.5(2.4x+4)=1.2x-2

1.2x-2.4+1.2x-2=2.4x-4.4

Answer:

kkkkkk ill help

Step-by-step explanation:

Answer:

The correct answer is A

Step-by-step explanation:

$3000/50 = $60

So, the answer would be A, 60 dollars.

Since the question provided the diameter instead of radius, the diameter is 20 feet

Answer: well the diameter would be 20ft. If you meant to ask for the circumference then its 62.857ft

Step-by-step explanation:

Diameter of a circle is 20​ feet.

Hence it's Radius = 20/2 = 10 ft

We know circumference = 2πr

Circumference = 2 × 22/7 × 10 ft

Circumference = 44 × 10/7= 440/7

Circumference = 62.857 ft

Answer:

hope that helpes sorry if im whrong good luck

Answer:

9x^2

Step-by-step explanation:

It is given that:

x ( x + y ) = 27

If one manipulates the equation, by dividing by x, they get:

x + y = 27/x

It is also given that:

y ( x + y ) = 54

Again, manipulate the equation, only this time, divide by y,

x + y = 54/y

It is obvious that;

x + y = x + y

Yet this was proven;

x + y = 27/x

x + y = 54/y

Therefore, the following has to be true;

27/x = 54/y

To sove the proportion, use cross products;

27/x = 54/y

54x = 27y

Inverse operations:

54x = 27y

/27     /27

y = 2x

Substitute;

(x + y)

y = 2x

= (x + 2x)

= 3x

Now solve:

(3x)^2

9x^2

Answer:

1500 * 1/5

1500 * 0.2 = 300

300 * 12 = 3600

Javier contributes $3,600 a year to his savings.

Step-by-step explanation:

Answer:

$3600

Step-by-step explanation:

Answer:

the answer is d

Step-by-step explanation:

the x values don't repeat so therefore It is a function.

Answer:

D

Step-by-step explanation:

It's D bc you can have two of the same inputs equaling differnt outputs. You could of it as 4+3 = 7, 9, 2, and 1 or whatever numbers, its not true it only equals 7. Hope that helps

Answer:

I think its 80 for both. .,.

Hola,

Goodluck! Z:

Step-by-step explanation:

4×10^22

2.9×10^-33

the "e" basically represents 10 raised to some power. that power is the number to the right of it. in this case, that's to the power of 22 and -33, respectively

Answer:

5.8b + 0.2c

Step-by-step explanation:

Original equation:

5b + 0.2c + 0.8b = ?

Add 5b and 0.8b together

5.8b

Plug this value back into the equation

5.8b + 0.2c

Hope this helps :)

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Answer:i think it would be

Step-by-step explanation:

X0+(x+24)o+2x0

the o are the powers

There are are 100 Natural Terms present there.

given:

12, 13, 14, ......111.

first term, a= 12

d= 13-12= 1

[tex]a_n[/tex] = 11

Now,

[tex]a_n = a+ (n-1)d\\[/tex]

111 = 12 + (n-1) 1

111-12= n-1

n-1 = 99

n= 100

Hence, there are are 100 Natural Terms present there.

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Answer: x=4

Step-by-step explanation:You subtract the 2 then you get

-8x=-32

Then you divide-8/-32

Then you get

X=4

Answer:

0; (0, 0); 144; (3, 144)

Step-by-step explanation:

Y = distance (m)

X = time (hr)

X = 48x

If a car travels for 0 hours, it will travel __ mile(s).

y = 48x

Plug in 0 hours for x (time in hours)

y = 48(0)

Any number mutliplied by 0 equals 0

y = 0

If a car travels for 0 hours, it will travel 0 miles. This means it will pass through the point (0, 0).

(0, 0) limits our options to graphs B and D

Car travels 144 miles in 3 hours

To find how many miles it travels in 1 hour, divide 144 miles by 3 hours

144 ÷ 3 = 48

In 1 hour, a car travels 48 miles

If 48 × 3 = 144, then 48 × 4 = ?

48 × 4 = 192

When looking at graph D, there are 4 lines above 0

Counting by 48, it perfectly fits 192 by the fourth line

From (0, 0), if we move 3 units to the right we can find the third vertical line intersecting

Since the lines are counted by 48 and we are looking at the third line: 48 × 3 = 144

Use the slope to move 3 units to the right of the origin and 144 unit(s) up to the find the point (3, 144) that can be used to graph the relationship

Advantages - money

Disadvantages - far away

Answer:

4 11/14

Step-by-step explanation:

Follow PEMDAS order of operations ( Since its only 1 equation just do what the equation is asking you to do which is subtract)

5-3/14 = 5/1 - 3/14 = 70/14 - 3/14

= 67/14

= 4 11/14

Hope this helps!!!

Answer:

16.8

Step-by-step explanation:

14% of 120 = 0.14 *120 = 16.8

Answer:

4+x=7 this you make a t chart then you (subtract word bank)  4 because of the (addition word bank) sign to get rid of four and keep the variable rember do it to both sides.

4+x l 7

-4    l  -4

    x = 3

Step-by-step explanation:

Answer:

yea

Step-by-step explanation:

cuz then there would be a graph and stuff and you would analyze which student spends more time