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3 years ago

An equation that is true for every value of the variables is a(n)

2 answers:

7 0

I pretty sure its called a called an [b] identity [/b]. i remember learning this and i am almost certain that this is what it's called

Roman55 [17]3 years ago

5 0

Identity, For example, x + x = 2x is true for every value of x.

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Solve the equation 5(x + 2) = 6x + 3x − 14, and show your work. (5 points)

grandymaker [24]

Answer:

x = 6

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Distributive Property

Equality Properties

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

Algebra I

Terms/Coefficients

Step-by-step explanation:

Step 1: Define

Identify

5(x + 2) = 6x + 3x - 14

Step 2: Solve for x

[Addition] Combine like terms: 5(x + 2) = 9x - 14
[Distributive Property] Distribute 5: 5x + 10 = 9x - 14
[Subtraction Property of Equality] Subtract 9x on both sides: -4x + 10 = -14
[Subtraction Property of Equality] Subtract 10 on both sides: -4x = -24
[Division Property of Equality] Divide -4 on both sides: x = 6

3 0

3 years ago

Yuki has saved £100 and spends £22 on a present. Rosetta has saved £140 and spends £28 on a present. What percentage has each gi

grigory [225]

Answer:

yuki has spent 22 percent , Rosetta spent 20 percent

step by step explanation:

1) if £100=100percent

then £22=x percent

x=(22×100)/100=22 percent

2) if £140=100 percent

then £28= x percent

x=(28×100)/140

x=2800/140

x=20 percent

6 0

3 years ago

Help me out, thank you.

AveGali [126]

Answer: 38

Step-by-step explanation:

7 0

3 years ago

What is 1.847 and 1.798 rounded to nearest hundredth of a pound

Alisiya [41]

1.847 rounds to 1.85 because the number in the thousandths place bumps it up since it is greater then 4. 1.798 rounds to 1.8 because the number in the thousandths place bumps the nine up to ten and you can't have a two digit number where there is only supposed to be one. so that "ten" bumps the 7 up to 8.

3 0

3 years ago

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If the relative frequency of a train being late is 0.15, how often could you expect the train to be late in 100 days?

Natali [406]

Relative frequency is the number of times that the train is late between the total of journeys, so only multiply 0.15*100 =15 times

4 0

3 years ago

Read 2 more answers