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3 years ago

Making x the subject of a formula.

Mathematics

2 answers:

matrenka [14]3 years ago

5 0

X is a variable, a variable you have to divide to cancel out

Nataly_w [17]3 years ago

4 0

Y= x+b/a ay/b = X X = ay/b y= x/a + b a(y-b) = x x = a(y-b) May I have the brainlest please

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Please help me with this! I will mark you as brainliest!

erastovalidia [21]

Step-by-step explanation:

$\frac{ {5}^{3} }{ {5}^{7} }$

$\frac{1}{ {5}^{7 - 3} }$

$\frac{1}{ {5}^{4} }$

${5}^{ - 4}$

Hope it will help :)

4 0

3 years ago

What is 788.48 plus 7% rounded to the nearest cent

AveGali [126]

Answer:

$843.67

Step-by-step explanation:

1% = 7.8848

7.8848 x 7 = 55.1936

788.48 + 55.1936 = 843.6736

Rounded to nearest cent = $843.67

7 0

2 years ago

Read 2 more answers

Find the solution of the system by graphing

zvonat [6]

Answer:

x = -2

y = -1

(-2, -1)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS
Equality Properties

Algebra I

Solving systems of equations using substitution/elimination
Solving systems of equations by graphing

Step-by-step explanation:

Step 1: Define systems

y = x + 1

3x + 3y = -9

Step 2: Solve for x

Substitution

Substitute in y: 3x + 3(x + 1) = -9
Distribute 3: 3x + 3x + 3 = -9
Combine like terms: 6x + 3 = -9
Isolate x term: 6x = -12
Isolate x: x = -2

Step 3: Solve for y

Define original equation: y = x + 1
Substitute in x: y = -2 + 1
Add: y = -1

Step 4: Graph systems

Check the solution set.

6 0

3 years ago

Which are equivalent ratios to 7:13?

Dennis_Churaev [7]

Answer:

14:26, 21:39, 28:52, 35:65, 42:78, 41:91

Step-by-step explanation:

All of the above are equivalent ratios. These are only a few. More can be found by just simply multiplying 7 by any amount, and 13 by any amount.

6 0

3 years ago

Factor the expression.

valentinak56 [21]

It is (d+5)(d+5) because 5•5 is 25 and 5+5 is 10

4 0

3 years ago