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3 years ago

The question I have is this 90+30+a=180

Mathematics

2 answers:

pashok25 [27]3 years ago

4 0

Answer:

a = 60

Step-by-step explanation:

90 + 30 = 120

120 - 180 = 60

Snowcat [4.5K]3 years ago

4 0

Answer:

$a = 60$

Step-by-step explanation:

Add 90 with 30 you get 120, divide 120 by 180 get 60

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Priscilla can make 4 bracelets in 12 minutes. At this rate, how many bracelets can she make in 48 minutes?

patriot [66]

Answer:

A. 16

Step-by-step explanation:

We can use a ratio to solve

4 bracelets x bracelets

----------------- = -------------

12 minutes 48 minutes

Using cross products

4 * 48 = 12x

192 = 12x

Divide by 12 on each side

192/12 =12x/12

16 =x

3 0

3 years ago

Three consecutive even integers whose sum is -48

Salsk061 [2.6K]

Three consecutive even integers whose sum is -48

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2 years ago

What is the slope / rate of change for 2, 5 and -3, 7

Nady [450]

Answer:

$\displaystyle m=\frac{-2}{5}$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS 

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Coordinates (x, y)
Slope Formula: $\displaystyle m=\frac{y_2-y_1}{x_2-x_1}$

Step-by-step explanation:

Step 1: Define

Point (2, 5)

Point (-3, 7)

Step 2: Identify

x₁ = 2, y₁ = 5

x₂ = -3, y₂ = 7

Step 3: Find slope m

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

Substitute in points [Slope Formula]: $\displaystyle m=\frac{7-5}{-3-2}$
[Slope] [Fraction] Subtract: $\displaystyle m=\frac{2}{-5}$
[Slope] [Fraction] Rewrite: $\displaystyle m=\frac{-2}{5}$

4 0

2 years ago

Write x2 - 8x - 3 in vertex form.

crimeas [40]

Vertex form:

y = a(x - h)² + k

I have not learned this stuff yet, but by using online calculators, I can determine that the vertex form is:

Y = (x - 4)² - 19

I believe so :/

6 0

3 years ago

I will mark as brainliest:)

Aliun [14]

Answer:

Cube C

Step-by-step explanation:

${ \sf{because \: it \: is \: identical}}$

8 0

2 years ago