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3 years ago

Help asap ☺️☺️☺️☺️☺️☺️☺️

Mathematics

2 answers:

eduard3 years ago

4 0

If you add the angles of a triangle, your sum should always be 180°

70° + 80° + x° = 180°
150° + x = 180°

subtract 150 from both sides of the equation.....
150° + x = 180°
-150 -150

x = 30

your answer is 30°

never [62]3 years ago

3 0

Hey There!

80+70 is 150

180
-150
is 30 so 30 must be your answer

Hope This Helps!!!

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A teacher pays $39 for 10 books.What is the unit price of each book?

zheka24 [161]

To find the cost of each book, you need to divide the money spent on all of the books by the number of books.

$39 / 10 = $3.90 per book

8 0

4 years ago

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What is the slope of the line passing through the point (2,1) and the origin ?

liraira [26]

Answer:

$m=\frac{1}{2}$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Slope Formula: $m=\frac{y_2-y_1}{x_2-x_1}$

Step-by-step explanation:

Step 1: Define

Random Point (2, 1)

Origin (0, 0)

Step 2: Find slope m

Simply plug in the 2 coordinates into the slope formula to find slope m.

Substitute [SF]: $m=\frac{0-1}{0-2}$
Subtract: $m=\frac{-1}{-2}$
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3 years ago

Simplify using laws of exponents: 5^7 × 5^6 × 52

xxMikexx [17]

$\displaystyle \rm 5 ^{7} \times 5 ^{6} \times 52$

$\displaystyle \rm \: 5 ^{7 + 6} \times 52$

$\displaystyle \rm \: 5 ^{13} \times 52$

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5 0

3 years ago

Find the m∠1, if p|| q, and m∠4 = 125 degrees. m∠1 =

polet [3.4K]

Step-by-step explanation:

m<5=180-m<4 (linear pair)

m<5=180-125 = 55°

m<5=m<1 ( alternate angle)

therefore, m<1 = 55°.

hope this helps you.

8 0

3 years ago

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Help quick please. Order the numbers from least to greatest.

Anastasy [175]

Answer:

$-2\frac{1}{4}$

Step-by-step explanation:

Mod of any number represents the absolute value of the number.

Therefore, $|-2\frac{1}{4}|=2\frac{1}{4}$ = 2.25

$-2\frac{1}{4}=-2.25$

$|1\frac{1}{4}|=1.25$

$\frac{3}{4}=0.75$

$|-1\frac{3}{4}|=1\frac{3}{4}=1.75$

$-1\frac{1}{4}=-1.25$

Now we can arrange these numbers in ascending order.

-2.25 < -1.25 < 0.75 < 1.25 < 1.75 < 2.25

Therefore, $-2\frac{1}{4}$

4 0

3 years ago