Answers
Answer:
Step-by-step explanation:
z-15 + 2z = 180
3z-15 = 180
3z = 195
z=65
130=m<C
130=m<A
50=m<D
50=m<B
Related Questions
The expression 3(-2m + 5) - 6(-4m - 2) can be written in the form am + b. What is the value of a + b?
Answers
Answer: 45
Step-by-step explanation:
3(-2m + 5) -6(-4m - 2) =
-6m + 15 + 24m + 12=
18m + 27
18= a 27= b 27 + 18= 45
The value of the expression a + b is 45.
What is an expression?An expression contains one or more terms with addition, subtraction, multiplication, and division.
We always combine the like terms in an expression when we simplify.
We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.
Example:
1 + 3x + 4y = 7 is an expression.
3 + 4 is an expression.
2 x 4 + 6 x 7 – 9 is an expression.
33 + 77 – 88 is an expression.
We have,
First, we can simplify the expression using the distributive property:
3(-2m + 5) - 6(-4m - 2) = -6m + 15 + 24m + 12
Combining like terms, we get:
18m + 27
So, a = 18 and b = 27, which means:
a + b = 18 + 27 = 45
Therefore,
The value of a + b is 45.
Learn more about expressions here:
https://brainly.com/question/3118662
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HELLLLP MEH, WILL MARK BRAINLIEST, NEED ALL Q'S ANSWERED
Answers
Answer:
1. is 4
2. is 3
3. is 10
4. is 13
Step-by-step explanation:
Hope this helpss!!
please help me i would really like the help
Answers
Answer:
HL
Step-by-step explanation:
Since the ray BD bisects angle ABC, we know angle ABD and angle CBD are congruent through the definition of an angle bisector. Segment AD and segment CD are also congruent because they are equidistant from the bisector. Lastly, segment BD is congruent to segment BD through the reflexive property of equality. This gives the triangles congruency through HL theorem.
if layla can right 20 essays in 15 minutes and 8 in 6 minutes then how many can she right in 45 minutes?
Answers
Answer:
60! hope this helps!
Step-by-step explanation:
Please answer!!
What is the perimeter of parallelogram WXYZ?
The perimeter is (Type an integer or a decimal.)
Answers
Answer:
196
Step-by-step explanation:
If an ordered pair was added to the table, which of the following pairs would result in the table becoming not a function. (-3, 6) (0, 8) (3, 20) (8, 4) (-10, 8)
(A) (– 8, 8) (C) (8, 3) ( B) (6, 3)(D) (– 3, 4)
help please
Answers
Answer:
the answer is a I just took the test and its right
Step-by-step explanation:
(c) Paul uses the function y = 7x + 30 to model the situation. What score does Paul’s model predict for 3 hours of homework?
(d) Describe what the number 30 in Part (c) mean in the context of the situation?
Answers
Answer:
(c) Paul's model predicts a score of 51 for 3 hours
(d) 30 represents the y intercept
Step-by-step explanation:
Given
[tex]y = 7x + 30[/tex]
Solving (c): What is y when x is 3
Substitute 3 for x in [tex]y = 7x + 30[/tex]
[tex]y = 7*3 + 30[/tex]
[tex]y = 21 + 30[/tex]
[tex]y = 51[/tex]
Solving (d): What does 30 represent
An equation is represented as:
[tex]y = mx + b[/tex]
Where
[tex]b = y\ intercept[/tex]
Compare: [tex]y = mx + b[/tex] to [tex]y = 7x + 30[/tex]
[tex]b = 30[/tex]
This implies that 30 represents the y intercept
Laura's spent $5.00 of the $20.00 in her wallet. Write a decimal and percent that represents the fraction of the $20.00 Laurel spent.
Answers
Answer:
1/4 or 0.25 or 25%
Step-by-step explanation:
Answer:
0.25, or 25%
Step-by-step explanation:
1/4=0.25, and that equals 25% also 4*5=20, so 5 is 1/4 of 20.
hopes this helps
I have 108$
If a pc costs 1,481$
And I earn 15$ a week
How long will it take until I get pc? (Please help!)
Answers
Step-by-step explanation:
$1481 - $108 = $1,373 still to needed to purchase PC
$1,373/ $15 = 91.533...
It will take 92 weeks.
42/48 simplify and trlurn to decimal
Answers
hope that helps
1/8 is 0.125
0.125x7 is 0.875
I am a trinomial whose leading coefficient is -3 when I'm put in standard form:
A.[tex]2xy-3+5xy^{2}[/tex]
B.[tex]3x^3-3x-3[/tex]
C.[tex]4x^2-3x^4+x[/tex]
D.[tex]x^5y-3x^2y-xy[/tex]
Answers
Answer:
C. 4x² - 3x⁴ + x
General Formulas and Concepts:
Algebra I
Terms/CoefficientsStandard Form: Largest degree to smallest degreeLeading Coefficient: Constant multiplied to largest degreeStep-by-step explanation:
Step 1: Define
A. 2xy - 3 + 5xy²
B. 3x³ - 3x - 3
C. 4x² - 3x⁴ + x
D. x⁵y - 3x²y - xy
Step 2: Rewrite
Rewrite each trinomials into standard form.
A. 5xy² + 2xy - 3
B. 3x³ - 3x - 3
C. -3x⁴ + 4x² + x
D. x⁵y - 3x²y - xy
Step 3: Identify LC
A. has a leading coefficient of 5
B. has a leading coefficient of 3
C. has a leading coefficient of -3 (our answer)
D. has a leading coefficient of 1
help pls ill mark as brainliest if correct
Answers
Step-by-step explanation:
5 miles =8 km
? miles=74 km
[tex] x \: miles = \frac{74 \times 5}{8} \\ = 46.25 \\ \frac{5 \: miles}{8 \: km} = \frac{46.25 \: miles}{74 \: km} \\ [/tex]
Write the decimal as a percent.
0.0046 = %
Answers
Answer:
0.46%
Step-by-step explanation:
0.0046*100%= 0.46%
PLEASE ANSWER and show work
im literally giving 20 brainly points so PLEASE HELP ME
Answers
Answer:
I wrote out the answers on top of the sheet. Hope this helped!
Step-by-step explanation:
PLease answer this question
Answers
Answer:
b- 43%
Step-by-step explanation:
being technical its 42.857142857143% but assuming its round up it would be 43%
Answer:
c. 30%Step-by-step explanation:
Number of the trees:
12 + 28 = 40Number of infected is 12, so the percent of infected is:
12/40*100% = 30%Tell whether a triangle can have sides with the
given lengths. Explain, why or why not.
3x + 2, x?, and 2x when x = 4
Answers
Answer:
[tex]3x+2 \ne x^2 \ne 2x[/tex] for [tex]x = 4[/tex]
Step-by-step explanation:
Given
Shape: Triangle
Dimension: 3x + 2, x^2 and 2x
[tex]x = 4[/tex]
Required
Determine if it has equal sides
To do this, we simply substitute 4 for x in the given dimensions
3x + 2
[tex]3x + 2 = 3 * 4 + 2[/tex]
[tex]3x + 2 = 12 + 2[/tex]
[tex]3x + 2 = 14[/tex]
x^2
[tex]x^2 = 4^2[/tex]
[tex]x^2 = 16[/tex]
2x
[tex]2x = 2 * 4[/tex]
[tex]2x = 8[/tex]
[tex]3x+2 \ne x^2 \ne 2x[/tex] for [tex]x = 4[/tex]
Drag the appropriate answer from the choices given into the box provided.
Allen bought 2 notebooks for $8.75 each and one
Textbook for $74.95. If the sales tax was 7%, the total
of Allen's purchase was
$83.70
$89.56
$92.45
$98.92
Answers
3y = x -4
5x - 6y = 8
How many solutions does the system have?
O One solution
O No solution
0 Infinitely many solutions
Answers
Answer:
can you pls show more......
Step-by-step explanation:
simplify 4 to the 11th power over 4 to the -8th power
Answers
Answer:
274878070200
Step-by-step explanation:
4 to the power 11 = 4194304
4 to the power -8 = 0.00001525878
4194304/0.00001525878 = 274878070200
A certain college enrolled 29,000. It was reported 54 percent were female and 46 percent were male. In addition 61 percent were over the age of 25. How many students were in each category if 30 percent of those over the age if 25 were male
Answers
Answer:
Step-by-step explanation:
Total number of students = 29000
Number of female = 54% of 29000
54/100 x 29000 = 15660 students
Number of male = 46% of 2900
46/100 x 29000= 13340 students
61% of 29000 are over 25 years
61% of 29000= 61/100 x 29000
= 17690 students
Of the pupils over the age of 25, 30% are male
30% of 17690 students are male
30/100 x 7690 =5307 students
The number of females over the age of 25 = 17690 -5307
17690 - 5307 = 12383 female students.
30 POINTS PLEASE HELP
What is the value of x?
Answers
Answer:
x = 27
Step-by-step explanation:
ΔDQC ≈ ΔDBR
set up proportion based on corresponding sides
39/x = 65/18+x
cross-multiply:
39(18+x) = 65x
702 + 39x = 65x
702 = 26x
x = 27
The following table contains the rate of commission, number of items sold,
and cost of each item for four different salespeople.
Salesperson
Rate of
commision
Number of
items sold
Cost of
each item
Felix
7.25%
9
$60
Helen
7.50%
12
$50
Reid
8.25%
10
$40
Sidney
7.75%
6
$90
Assuming that each salesperson earned commission on all items he or she
sold, who earned the most in commission?
Answers
Answer:
Helen
Step-by-step explanation:
Just did test
Both Felix and Sidney earned the same amount of commission, which is $39.15.
Helen earned the most commission, which is $45.00.
What is an expression?An expression contains one or more terms with addition, subtraction, multiplication, and division.
We always combine the like terms in an expression when we simplify.
We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.
Example:
1 + 3x + 4y = 7 is an expression.com
3 + 4 is an expression.
2 x 4 + 6 x 7 – 9 is an expression.
33 + 77 – 88 is an expression.
We have,
To calculate the commission earned by each salesperson, we need to multiply the rate of commission by the total sales amount.
The total sales amount is the product of the number of items sold and the cost of each item.
For Felix:
Commission = (Rate of commission) x (Total sales amount)
= 7.25% x (9 x $60)
= $39.15
For Helen:
Commission = (Rate of commission) x (Total sales amount)
= 7.50% x (12 x $50)
= $45.00
For Reid:
Commission = (Rate of commission) x (Total sales amount)
= 8.25% x (10 x $40)
= $33.00
For Sidney:
Commission = (Rate of commission) x (Total sales amount)
= 7.75% x (6 x $90)
= $39.15
Therefore,
Both Felix and Sidney earned the same amount of commission, which is $39.15.
Helen earned the most commission, which is $45.00.
Learn more about expressions here:
https://brainly.com/question/3118662
#SPJ7
please help its the last question will give brainliest
Answers
Answer:
94
Step-by-step explanation:
circumference of a circle is 2πr or πd with r being the radius or d being the diameter.
30 meters is the diameter, and 30π ≈ 94.2
Help!!!!!!!!!!!!!!!!!!!!!
Answers
What would you multiply by to increase a number by 4%?
Answers
Answer:0.04
Step-by-step explanation:4% is just 0.04. Example I multiply 2 by 4% i get 0.08. I multiply 2 by 0.04 i get 0.08. Hope this helped.
Solve the equation -6(x - 1/2) = 3x + 3 - 9x
Answers
Answer:
um the answer is 0=0 (no cap)
Step-by-step explanation:
hope this helps!
please mark me as brainliest. Thanks!
Answer:
Step-by-step explanation:
Distributive property: a(b +c) =(a*b) + (a*c)
-6(x - 1/2) = 3x + 3 - 9x
[tex]x*(-6) - \frac{1}{2}*(-6) = 3x - 9x + 3\\\\[/tex]
[tex]-6x + 3 = -6x + 3\\[/tex]
So, there are infinity solutions
What are the other two representations of this ratio 15 to 3
Answers
Answer:
you can answer it like 15 to 3 or
15:3
A spinner is shown.
The arrow on the spinner us spun once. What is the probability of spinning of spinning a 2, 3, 5, 7, or 11?
Answers
Answer:
62.5
Step-by-step explanation:
5/8=.625
0.625*100=62.5
Expand the expression: 3.5 (- 3n + 4) using the Distributive Property
Answers
Answer:
-10.5n + 14
Step-by-step explanation:
Solve this system of equations:
y=-3x + 13
y=-2x + 1
Enter your answer as an ordered pair (x, y).
Answers
Answer:
The answer is (12,-23)