All categories

2 years ago

Please help meeeeeeeeeeeeedirections: use substitution to solve the solution

Mathematics

1 answer:

dimaraw [331]2 years ago

3 0

Answer:

(-3, 13)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtraction Property of Equality

Algebra I

Terms/Coefficients
Coordinates (x, y)
Solving systems of equations using substitution/elimination

Step-by-step explanation:

Step 1: Define Systems

y = -4x + 1

11y = x + 146

Step 2: Solve for x

Substitution

Substitute in y: 11(-4x + 1) = x + 146
Distribute 11: -44x + 11 = x + 146
[Addition Property of Equality] Add 44x on both sides: 11 = 45x + 146
[Subtraction Property of Equality] Subtract 146 on both sides: -135 = 45x
[Division Property of Equality] Divide 45 on both sides: -3 = x
Rewrite/Rearrange: x = -3

Step 3: Solve for y

Define original equation: y = -4x + 1
Substitute in x: y = -4(-3) + 1
Multiply: y = 12 + 1
Add: y = 13

You might be interested in

a factory makes 5/6 of a box every minute. how many boxes can the factory make in 2/3 of a minute? use a visual fraction model o

faltersainse [42]

Here you go, hope this helps

6 0

3 years ago

Divide. (6.496×10−6)÷(2.8×105) Express your answer in scientific notation. Enter your answer in the boxes.

ss7ja [257]

we have been asked to perform $(6.496*10^{-6})\div (2.8*10^5)$

The given expression can be written as

$\frac{(6.496*10^{-6})}{2.8*10^5}$

Now it can be re-written as below

$=\frac {(6.496*10^{-6})}{2.8*10^5}=\frac{6.496}{2.8}*\frac{10^{-6}}{10^5}\\ \\ \text{Now using the exponent rule } \\ \\ \frac{a^m}{a^n}=a^{m-n}\\ \\ \text{we can re-write as below}\\ \\ \frac{6.496}{2.8}*\frac{10^{-6}}{10^5}= \frac{6.496}{2.8}*10^{-6-5}= \frac{6.496}{2.8}*10^{-11}\\ \\ \text{Now divide we get}\\ \\ =2.32*10^{-11}$

6 0

3 years ago

Divide 5 1/4 ÷ -2 1/2

earnstyle [38]

Answer:

Exact form: 21/10

Decimal form: 2.1

Mixed Number form: 2 1/10

Step-by-step explanation:

Reduce the expression if possible, do so by canceling out the common factors.

4 0

2 years ago

Solve the equation show all work below: 5+3(x-4)=8

nevsk [136]

Answer:

The answer is x = 5

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

~Hoped this helped~

7 0

3 years ago

How would you show the division problem if you are Dividing $5,820 divided by 28

Phoenix [80]

Answer:

i think 5280÷28 is the correct answer

3 0

3 years ago