If 10% of a number is 6, then 100% of the number is

Answer:

143, 145

Step-by-step explanation:

Answer:

f(g(2))=84

Step-by-step explanation:

Step one:

Given data

f(x)= x*2 +3

g(x) = 4x + 1

Step two

Let us find g(2) first then we proceed to find f(g(2))

g(2)=4(2) +1

g(2)=8+1

g(2)=9

Since g(2)=9

f(g(2))=x*2 +3

f(g(2))=9*2 +3

f(g(2))=81+3

f(g(2))=84

Answer:

x=-3.875

y=1.625

x+y=5.5

Step-by-step explanation:

Given:

9(1-x)=27y

x-y=-11/2

then:

x=y-11/2 OR 5.5

substitute:

9(1-[y-5.5])=27y

9-9[y-5.5]=27y

9-9y+49.5=27y

simplifying:

36y=58.5

y=1.625

x=1.625-5.5=-3.875

Proof:

x-y=5.5 then -3.875-1.625=-5.5 =-11/2

9(1-x)=27y then 9(1-(-3.875))=27(1.625) then simplified

9(4.875)=43.875  or 43.875=43.875

Answer:

(9, -8)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

1. Brackets
2. Parenthesis
3. Exponents
4. Multiplication
5. Division
6. Addition
7. Subtraction

• Left to Right

Equality Properties

• Multiplication Property of Equality
• Division Property of Equality
• Addition Property of Equality
• Subtract Property of Equality

Algebra I

• Solving systems of equations using substitution/elimination

Step-by-step explanation:

Step 1: Define Systems

4x + 3y = 12

2x + 3y = -6

Step 2: Rewrite Systems

4x + 3y = 12

1. Multiply everything by -1:                    -4x - 3y = -12

Step 3: Redefine Systems

-4x - 3y = -12

2x + 3y = -6

Step 4: Solve for x

Elimination

1. Combine 2 equations:                     -2x = -18
2. Divide -2 on both sides:                  x = 9

Step 5: Solve for y

1. Define equation:                     2x + 3y = -6
2. Substitute in x:                        2(9) + 3y = -6
3. Multiply:                                   18 + 3y = -6
4. Subtract 18 on both sides:      3y = -24
5. Divide 3 on both sides:           y = -8

Answer:

4x⁴ - 4x³ + 2x² + 11x + 11

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

1. Brackets
2. Parenthesis
3. Exponents
4. Multiplication
5. Division
6. Addition
7. Subtraction

• Left to Right

Algebra I

• Terms/Coefficients/Degrees

Step-by-step explanation:

Step 1: Define

(14x⁴ - x³ + 2x² + 5x + 15) - (10x⁴ + 3x³ - 6x + 4)

Step 2: Simplify

1. Distribute negative:                                                                                       14x⁴ - x³ + 2x² + 5x + 15 - 10x⁴ - 3x³ + 6x - 4
2. Combine like terms (x⁴):                                                                               4x⁴ - x³ + 2x² + 5x + 15 - 3x³ + 6x - 4
3. Combine like terms (x³):                                                                               4x⁴ - 4x³ + 2x² + 5x + 15 + 6x - 4
4. Combine like terms (x):                                                                                 4x⁴ - 4x³ + 2x² + 11x + 15 - 4
5. Combine like terms (Z):                                                                                 4x⁴ - 4x³ + 2x² + 11x + 11

Answer

67

Step-by-step explanation

66, 51, 77, 68, 60, 75, 54, 80

rearrange the numbers

51, 54, 60, 66, 68, 75, 77, 80

66 and 68 are middle numbers so add it and divide by 2

66+68/2

134/2

=67

Answer:

A≈36.32

hope this helps you

Answer:

X  = 1.2

Step-by-step explanation:

-2(3x + 7) = -2(1 + 8x)

-6x - 14 = -2 - 16x

+16x              +16x

10x - 14 = -2

     +14    +14

10x = 12

10  =   10 = 1.2

(x = 1.2)

Answer:

1

Step-by-step explanation:

74/2 = 37/x so u have to cross multipy these two so 74*x = 2*37

then 74x =74 so x=74/74 which is 1 :)

There are 24 minutes in 40 percent of an hour.

What is the percentage?

The percentage is defined as a ratio expressed as a fraction of 100.

For example, If Misha obtained a score of 67% on her exam, that corresponds to 67 out of 100. It is expressed as 67/100 in fractional form and as 67:100 in ratio form.

We know that there are 60 minutes in one hour

So 1 hour = 60 minutes,

We have to evaluate 40 percent of an hour

⇒ 40% of 1 hour

⇒ 40% of 60 minutes

⇒ 0.4 × 60 minutes

Apply the multiplication operation, and we get

⇒ 24 minutes

There are 24 minutes in 40 percent of an hour.

Learn more about the percentages here:

brainly.com/question/24159063

#SPJ2

Answer:

24

Step-by-step explanation:

40 percent is 40/100=2/5

2/5x60 is 24