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3 years ago

30 is 20% of what number?

Mathematics

1 answer:

Nataly [62]3 years ago

6 0

30 is 20% of 150. Hope this pic helps

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Help please 10 points

Olin [163]

That's a 45 degree angle

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3 years ago

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The difference of the squares of two positive consecutive even integers is 28. find the integers.

Klio2033 [76]

The integers are 8 and 6:

${8}^{2} - {6}^{2} = 64 -36 = 28$

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3 years ago

Solve for X

tigry1 [53]

Answer:

$x = \pm e^{-1}$

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
Subtract Property of Equality

Algebra I

Solving quadratics
Multiple roots

Algebra II

Logarithms
Euler's number e

Step-by-step explanation:

Step 1: Define

$\displaystyle ln(x^2) = -2$

Step 2: Solve for x

Raise both sides by e: $e^{\displaystyle ln(x^2)} = e^{-2}$
Simplify equation: $x^2 = e^{-2}$
Square root both sides: $x = \pm e^{-1}$

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2 years ago

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Work out the median for each data set.

Tema [17]

Answer:

do your self it is easy

Step-by-step explanation:

do your self it is easy

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3 years ago

Write an expression for the lengths of the rectangle in terms

Snowcat [4.5K]

Answer:

l = A/w

Step-by-step explanation:

Let 'A' equal area. If the formula for the area of a rectangle is A = lw, you need to get 'h' alone. Divide 'h' by 'l' and by V to get the answer, l = A/w.

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3 years ago

30 is 20% of what number?​

30 is 20% of what number?