Someone please help I’m failing and I need it and include explanation please!

Answer:40

Step-by-step explanation:

100+10+10=3x

3x=120

Divide both sides by 3

X=40

Answer:

40

Step-by-step explanation:

add 100+10+10 and divide it by 3

Answer:

It's d

Step-by-step explanation:

i did it and got it right

Answer: D

Step-by-step explanation:

D can be solved using 300/6 = x/10 making it a proportion

Answer:

18 because

12% = money saved / total earned money * 100

Step-by-step explanation:

Answer:

All the options are equivalent except;

4 + y

Step-by-step explanation:

The question relates to the number of ways the operation of a multiplication operation can be represented algebra

1) The coefficient of a variable is a multiplier of the variable

Therefore;

4y = 4 × y

2) When given two numbers or variables in a mathematical expression that are separated by parenthesis, then it is an indication that the two numbers are meant to be multiplied

Therefore;

(4)(y) = 4 × y

3) The dot symbol, '·', placed between two numbers, a number and a variable or two variables, is a representation of multiplication of the two quantities

Therefore;

4·y = 4 × y

However, multiplication, and addition are different mathematical operations that produce different results when applied;

Therefore;

4 + y ≠ 4 × y.

Answer:

[tex]CD = 12.6866616739cm[/tex]

[tex]CD \approx12.7cm[/tex]

Step-by-step explanation:

[tex]CB = a[/tex]

[tex]AB = b[/tex]

[tex]AC = c[/tex]

[tex] {c}^{2} = {a}^{2} + {b}^{2} [/tex]

[tex] {a}^{2} = {c}^{2} - {b}^{2} [/tex]

[tex]a = \sqrt{ {c}^{2} - {b}^{2} } [/tex]

[tex]a = \sqrt{ {12}^{2} - {6}^{2} } [/tex]

[tex]a = \sqrt{144 - 36} [/tex]

[tex]a = \sqrt{108} [/tex]

[tex]CB = \sqrt{108} [/tex]

[tex] \sin(D) = \frac{opposite}{hypotenuse} [/tex]

[tex] \sin(D) = \frac{CB}{CD} [/tex]

[tex] \sin(55) = \frac{ \sqrt{108} }{CD} [/tex]

[tex](CD) \sin(55) = \frac{ \sqrt{108} }{CD} (CD)[/tex]

[tex](CD) \sin(55) = \sqrt{108} [/tex]

[tex] \frac{(CD) \sin(55) }{ \sin(55) } = \frac{ \sqrt{108} }{ \sin(55) } [/tex]

[tex]CD = \frac{ \sqrt{108} }{ \sin(55) } [/tex]

[tex]CD = 12.6866616739cm[/tex]

[tex]CD \approx12.7cm[/tex]

Answer:

900 km/h

Step-by-step explanation:

Answer:

Y=-4

Step-by-step explanation:

y = 3x + 2

y = 3(-2) + 2

y = -6 + 2

y = -4

Answer:

Y=5

Step-by-step explanation:

Y=2+3

So that why y is 5

Please rate my comment I am new and I would lie to help others thankyou ♥

Answer:

p(-2) = -11

p(0) = -3

p(5) = 17

Step-by-step explanation:

Step(i):-

Given that the polynomial function  p(x) = -3 +4x ..(i)

Given x =-2 , 0 and 5

put x =-2 in equation (i)

p(-2) = -3 +4(-2)

       = -3 -8

p(-2) = -11

Step(ii):-

put x =0 in equation (i)

p(0) = -3 +4(0)

       = -3 +0

p(0) = -3

Step(iii):-

put x = 5 in equation (i)

p(5) = -3 +4(5)

       = -3 +20

p(5) = 17

its c

Step-by-step explanation:

rational because when you divide both values you get 1, it's a rational number

hope it helps!

Answer:

$83.74

Step-by-step explanation:

6% tax is $4.74

$79.00 + 4.74 = $83.74

Answer:

2x(5+13)

Step-by-step explanation:

add then multiply by 2

Answer:

to find perimeter

= 2(L+w)

= 2(5+13)

10+26

36

so the answer is 2×(5+13)

hope it's helpful ❤❤❤❤

THANK YOU.

Answer:

90

Step-by-step explanation:

a triangle's angles all add up to 180. take 51 and 39 away from 180 and you get 90

Answer: 90 degrees

Step-by-step explanation:

Theorem:

a+b+c=180 degrees

39 degrees + 51 degrees + x degrees = 180 degrees

39 + 51 = 90

180 - 90 = 90

Answer:

A

Step-by-step explanation:

1) first there are a few rules we need to know:

a) the sum of any two sides of a triangle is always larger than the 3rd side

b) the difference between any two sides of a triangle is always smaller than the 3rd side;

hence,

3+4=7

4-3=1

triangle 3,4,5 follows all the rules,

triangle 13,2,11:

11+2=13

the sum of any two sides must always be GREATER than the 3rd side-so this is not an option

triangle 10,4,5

5+4=9

9<10

not an option

To find the inverse, interchange the variables and solve for y

G^-1 (x) = square root x - 1, - square root x-1

Answer:

m=-37

Step-by-step explanation:

m-35=-72

m=-37

Answer:

y = 6/5x - 5

Step-by-step explanation:

Please let me know if you want me to add an explanation as to why this is the answer/how I got this answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)

Answer:

$12.75

Step-by-step explanation:

Do $71.75 - $8.00. Next divide that by 5. Here you should get the "each hour" amount.

Answer: $12.75

Step-by-step explanation:

He paid ^^ per hour - $8.00

Answer:

86 its the same thing on both sides if im wrong then 90?

Step-by-step explanation:

Answer:

58/21 is added to -7/3 to get 3/7

Answer:

x=3

Step-by-step explanation:

5x+2=7x−4  

5x+2−7x=7x−4−7x

−2x+2=−4  

−2x+2−2=−4−2

−2x=−6

-2x/2=-6/2

x=3

Answer:

29.25 Interest

Step-by-step explanation:

Take the formula: I=PRT

The principal is 650.00, 4.5 is the rate, 1 year is the time, We do not know the interest.

Change the rate, 4.5 to 0.045 to help solve the problem.

Times 650.00, 0.045, and 1 together.

You will get 29.25, Which is the answer!

Booyah! You are done.

Hope this helps!

Answer:

(x, y) -----> (x + 3, y - 4)

Step-by-step explanation:

3 to the right means add 3 to x.

4 down means subtract 4 from y.

(x, y) -----> (x + 3, y - 4)

Answer:

3,147.44828

Step-by-step explanation:

[tex] \frac{6}{87} \: of \: 45638 \\ \\ = \frac{6}{87} \times 45638 \\ \\ = 6 \times 524.574713 \\ \\ = 3,147.44828[/tex]

Answer:

1/x^7

Step-by-step explanation:

Answer:

1/x^7

Step-by-step explanation:

Answer:

a

Step-by-step explanation:

4X2 is 8 8x2 is 16 16x2 is 32

Answer:

it should be C. i hope this helps