All categories

2 years ago

Anyone want to help me with this? I will mark brainliest and thanks

Mathematics

1 answer:

Degger [83]2 years ago

6 0

Answer:

x = -8

m∠BDC = 68°

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Geometry

Definition of a Line: A line is 180°

Step-by-step explanation:

Step 1: Set up Equation

m∠BDC + m∠CDA = 180°

(-7x + 12)° + (-8x + 48)° = 180°

Step 2: Solve for x

Combine like terms: -15x + 60 = 180
Isolate x term: -15x = 120
Isolate x: x = -8

Step 3: Find m∠BDC

Define: m∠BDC = (-7x + 12)°
Substitute in x: m∠BDC = (-7(-8) + 12)°
Multiply: m∠BDC = (56 + 12)°
Add: m∠BDC = 68°

You might be interested in

The dot plot shows the number of hours, to the nearest hour, that a sample of 5th graders and 7th graders spend watching televis

Black_prince [1.1K]

Answer:

is the median for both of them .

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

PLZ HELP A WEEB OUT!!! WILL GIVE BRAINLIST

insens350 [35]

She used the diameter instead of the radius :) instead of cubing 8 she should’ve cubed 4

3 0

2 years ago

Lucy plans to spend between $50 and $60, inclusive, on packages of beads and packages of charms. If she buys 5 packages of beads

worty [1.4K]

She can buy maximum of $5$ packages while staying within her budget.

Minimum spending limit $=$ $ $50$ .

Maximum spending limit $=$ $ $60$ .

Cost of one package of beads $=$ $ $4.95$ .

Number of packages of beads bought $= 5$ .

Cost of one package of charms $=$ $ $6.55$ .

Let the number of packages of beads bought be $x$ .

$4.956 \times 5 + x \times 6.55 \geq 50$

$24.78+6.55x\geq 50$

$6.55x\geq 25.22$

$x\geq 3.85$

$4.956 \times 5 + x \times 6.55 \leq 60$

$24.78+6.55x\leq 60$

$6.55x\leq 35.22$

$x\leq 5.38$

So, she can buy maximum of $5$ packages while staying within her budget.

Learn more about solving inequalities here:

brainly.com/question/12189350?referrer=searchResults

7 0

1 year ago

Find the equation of a line that has a slope of 1/2 and passes through the origin.

omeli [17]

Step-by-step explanation:

The equation of a line with slope m and y-intercept b is y = m x + b.

This line goes through the point ( 0 ,0 ), so the y-intercept is zero.

We are given the slope as − 2 / 3.

The equation of the line is y= – 2 / 3 x + 0 = – 2 / 3 x

y = – 2 / 3 x

8 0

2 years ago

Assuming that the probability of giving birth to a boy or girl is 50% (that is equally likely to have a boy or girl), find:

defon

B is the awser to the questioning of this College Work

4 0

3 years ago