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Anna35 [415]
3 years ago
7

Five less than half a number is thirteen. What is the number?

Mathematics
1 answer:
Bad White [126]3 years ago
6 0
-5+0.5x= 13

Add 5 to both sides
0.5x= 18

Multiply both sides by 2
x= 36

Final answer: x=36
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What makes composing functions different from doing an arithmetic operation of two functions such as adding or dividing them?
11111nata11111 [884]

function composition is an operation that takes two functions f and g and produces a function h such that h(x) = g(f(x)). In this operation, the function g is applied to the result of applying the function f to x.

3 0
3 years ago
Solve the system:<br> -5x+6y=55<br> 4x+3y=34<br><br> Write down your solution.
svetlana [45]

Answer:

(1, 10)

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

<u>Algebra I</u>

  • Solving systems of equations using substitution/elimination

Step-by-step explanation:

<u>Step 1: Define Systems</u>

-5x + 6y = 55

4x + 3y = 34

<u>Step 2: Rewrite Systems</u>

4x + 3y = 34

  1. Multiply everything by -2:                    -8x - 6y = -68

<u>Step 3: Redefine Systems</u>

-5x + 6y = 55

-8x - 6y = -68

<u>Step 4: Solve for </u><em><u>x</u></em>

<em>Elimination</em>

  1. Combine equations:                    -13x = -13
  2. Divide -13 on both sides:             x = 1

<u>Step 5: Solve for </u><em><u>y</u></em>

  1. Define equation:                    4x + 3y = 34
  2. Substitute in <em>x</em>:                       4(1) + 3y = 34
  3. Multiply:                                  4 + 3y = 34
  4. Isolate <em>y</em> term:                        3y = 30
  5. Isolate <em>y</em>:                                 y = 10
4 0
2 years ago
Help if your good at math please!
TiliK225 [7]

Answer:

40% apples

train going 80 miles per hour

5 0
3 years ago
If we list all the possible factors (in order) of 12, we get 1, 2, 3, 4, 6, 12. This is the case because 1 x 12, 2 x 6, and 3 x
soldi70 [24.7K]

Answer:

1, 2, 3, 5, 6, 10, 15 and 30.

3 0
3 years ago
F
Stells [14]

Answer:

x = 34.8^\circ

Step-by-step explanation:

Given

See attachment for triangle

Required

Find x

To do this, we simply apply sin formula which is:

sin(\theta) = \frac{Opposite}{Hypotenuse}

In this case, it is:

sin(x) = \frac{8}{14}

sin(x) =0.5714

Take arcsin of both sides

x = sin^{-1}(0.5714)

x = 34.84791

x = 34.8^\circ --- approximated

7 0
2 years ago
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