Answers
7x+159=180
7x=180-159
7x=21
X=21/7
X=3
7(3)+18=
21+18=
39°
Then check by adding 90°+51°+39°=180
Since that adds up to 180° x=3
Related Questions
1. Nancy is purchasing a $200 coat at 15% off. What is the total amount
Nancy must pay?
Answers
200-30 = $170
Nancy must pay $170
My work is:
200*.15=30
200-30=170
A relation is
A
B
C
D
Answers
can I please get answers?
Answers
10.140 degree
11.64 degree
12. 31 degree
13. 50 degree
14.31 degree
15. 137 degree
Mr. Haley is learning a ladder against the side of the house to repair the roof.
The top of the ladder reaches the roof which is 16 feet high.
The base of the ladder is 12 feet away from the house where Mr. Haley’s son is holding it steady.
How long is the ladder?
Answer:_________feet.
Answers
Answer:
28
Step-by-step explanation:
a 5 year old could answer that
Answer:
the correct answer is 20
Step-by-step explanation:
A car travels 1,295 feet in 5 seconds. At that speed, how far can this car travel in 50 seconds? *
Answers
Answer:
12950 feet or about 2.45 miles
Can you do me a Favor? In Return, I give you brainlist and a thanks and 5 Stars
Answer these two questions for me and you will get as promised.
Answers
Answer:
I used desmos graphing calculator all you have to do is write the two equations in there
Step-by-step explanation:
The red line is #3 and the blue is #4
What is the distance between (3,0) and (3, -7)?
3
7
0
Answers
Answer:
[tex]d =7[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra II
Distance Formula: [tex]d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]Step-by-step explanation:
Step 1: Define
Point (3, 0)
Point (3, -7)
Step 2: Find distance d
Substitute: [tex]d = \sqrt{(3-3)^2+(-7-0)^2}[/tex]Subtract: [tex]d = \sqrt{(0)^2+(-7)^2}[/tex]Exponents: [tex]d = \sqrt{0+49}[/tex]Add: [tex]d = \sqrt{49}[/tex]Evaluate: [tex]d =7[/tex]reflect point A(-1,3) in
a) x axis
b) line y = 4
give the coordinates of the final image
Answers
Given:
The point is A(-1,3).
To find:
The coordinates of the final image. If the given point reflected in
(a) x-axis
(b) line y=4.
Solution:
(a)
If a figure reflected across the x-axis, then
[tex](x,y)\to (x,-y)[/tex]
Using this rule, we get
[tex]A(-1,3)\to A'(-1,-3)[/tex]
Therefore, the coordinates of the final image are A'(-1,-3).
(b)
If a figure reflected across the line y=4, then
[tex](x,y)\to (x,-(y-4)+4)[/tex]
[tex](x,y)\to (x,-y+4+4)[/tex]
[tex](x,y)\to (x,-y+8)[/tex]
Using this rule, we get
[tex]A(-1,3)\to A'(-1,-3+8)[/tex]
[tex]A(-1,3)\to A'(-1,5)[/tex]
Therefore, the coordinates of the final image are A'(-1,5).
The Student Council at Woodlands Middle School is planning a field
trip. They polled randomly selected teachers and students and asked
whether they prefer to go to the aquarium or an amusement park.
The results are shown in the table below.
Complete the following sentences.
? % of students prefer
to go to the aquarium.
Amusement
Park
Aquarium
Total
Students
8
32
40
?
Teachers
5
5
5
10
% of teachers prefer
to go to the aquarium.
i
Answers
Percentage of students and percentage of teachers who preferred to go to aquarium were 20% and 50% respectively.
Information given in the question,
Total number of students in the school = 40Number of students who preferred to go to aquarium = 8Number of students who preferred to visit amusement park = 32Total number of teachers in the school = 10Number of teachers who preferred to go to aquarium = 5Number of teachers who preferred to go to amusement park = 5Percentage of students who preferred to go to the aquarium
= [tex]\frac{\text{Number of students who preferred to go to aquarium}}{\text{Total number of students}}\times 100[/tex]
= [tex]\frac{8\times 100}{40}[/tex]
= 20%
Similarly, percentage of teachers who preferred to go to the aquarium
= [tex]\frac{5\times 100}{10}[/tex]
= 50%
Therefore, percentage of students and percentage of teachers who preferred to go to aquarium were 20% and 50% respectively.
Learn more,
https://brainly.com/question/626448
Plsss help explain I have an exam later and I need to understand this
Answers
Answer:
Option C
Step-by-step explanation:
The formula for calculating the slope of 2 points is [tex]\frac{y^{2-}y^{1} }{x^{2}-x^{1} }[/tex]
(-9, -10) and (-2, -5)
Slope = [tex]\frac{-5-(-10)}{-2-(-9)} =\frac{5}{7}[/tex]
What is the y-intercept of the function described in the table?
X = 1 2 3 4
y = -2 -6 -10 -14
Answers
Answer:
the y-intercept is 2.
Step-by-step explanation:
If you find the rate of change, which in this case is 1/-4, you can reverse the rate of change.
1 and -2
-1 (instead of adding 1) to x
+4 (instead of subtracting) to y
you get (0, 2).
Making the y-intercept 2.
if m =2 solve these 3m²-2m-7
Answers
Answer:
1
Step-by-step explanation:
m=2
3m²- 2m- 7
3(2)² -2(2) -7
3(4)- 4- 7
12- 4- 7= 1
Two students are going to the store to buy school supplies for the new school year. One of the students buys 2 packs of pencils and 3 packs of pens for $8.25. Her friend purchases 5 packs of pencils and 2 packs of pens for $11.00. Is there enough information to determine the cost of 1 pack of pencils and 1 pack of pens? If so, find the cost of each. Explain your thinking.
Answers
Let the unit price for pencil be x
Let the unit price for pack be y
If the students bought 3 packs of pencil and 2 packs of pen for $8.25, then;
[tex]2x+3y=8.25.... 1[/tex]
Similarly;
If her friend bought 5 packs of pencil and 2 packs of pen for $11, then ;
[tex]5x+2y=11 .... 2[/tex]
We will have to solve both equations simultaneously as shown;
[tex]2x+3y=8.25... 1...*5 \\5x+2y=11 ... 2 ... *2 \\[/tex]
---------------------------------------------------------------------------------------------------------------------------------------------------------
[tex]10x+15y=41.25\\10x=4y=22 \\[/tex]
Subtract the resulting equations;
[tex]15y-4y=41.25-22\\11y=19.25\\y=19.25/11\\y= $ 1.75 \\[/tex]
Hence 1 pack of pen costs %1.75
To get x, you will substitute y= 1.75 into equation 2;
[tex]2;5x+2y=11\\5x+2(1.75)=11\\5x+3.5=11\\5x=11-3.5\\5x=7.5\\x=\frac{7.5}{5} \\x=1.5[/tex]
Hence 1 pack of pencil will cost costs $1.5
From the above solution, we can conclude that there are enough information to find the cost of each pack of pen and pencil.
PLEASE MARK ME AS BRAINLIEST
Let the unit price for pencil be x
Let the unit price for pack be y
If the students bought 3 packs of pencil and 2 packs of pen for $8.25, then;
Similarly;
If her friend bought 5 packs of pencil and 2 packs of pen for $11, then ;
We will have to solve both equations simultaneously as shown;
---------------------------------------------------------------------------------------------------------------------------------------------------------
Subtract the resulting equations;
Hence 1 pack of pen costs %1.75
To get x, you will substitute y= 1.75 into equation 2;
Hence 1 pack of pencil will cost costs $1.5
From the above solution, we can conclude that there are enough information to find the cost of each pack of pen and pencil.
I'm re-uploading it. Please help i will give brainliest to first answer!
Answers
Answer:
here are the graphs i drew
Step-by-step explanation:
hope this helps!! :)
Solve by factoring.
f(x) = x^2 + 7x + 12
Answers
(6e−3f−4)⋅2=
otay otay
Answers
Answer:
Step-by-step explanation:
if you need to evaluate the expression:
multiply 2 with the parenthesis
12e-6f-8
Answer:
2 • (6e - 3f - 4)
Step-by-step explanation:
Round 85714.285714285714
Answers
Answer:
to what? nearest ?
Step-by-step explanation:
1 Find the number in the whole number place Answer: 85714
2 Round to the Nearest Hundredth Answer: 85714.29
3 Round to the Nearest tenth Answer: 85714.3
4 Round to the Nearest Thousandth Answer: 85714.29
next time tell the whole question
What type of chemical reaction is an example of anabolism ?
Answers
Describe the nature of the roots of this equation . 2x ^ 2 - x + 1 = 0 A. Two real, rational roots B. Two real, irrational roots C. Two non- real roots C. One real, double root
Answers
Step-by-step explanation:
b²-4ac
(-1)²-4(2×1)
1-8
-7
Now -7<0 therefore it has two complex roots or nonreal roots
This is for my last one since it messed up?
Answers
Answer:
Pic is not at all clear. please check. it is very blurry.
Solve (-5) (-3). PLEASE HELP I AM HAVING TROUBLE WITH THIS PROBLEM
Answers
Answer:
15
Step-by-step explanation:
if your multiplying it i think you are?
a neg. by a neg. is a positive
HELP FOR BRAINLIEST, DUE TODAY!!
what is the slope of runner 3?
Answers
Answer:
I think the slope of runner three would be nine!
Step-by-step explanation:
have a great day ^^
The ratio of red flowers to yellow flowers is 4 to 5. If there are 48 red flowers, what is the number of yellow flowers?
Answers
Answer:
60
Step-by-step explanation:
4 parts is 48
1 part is 12
5 parts is 60
Answer:
60 yellow flowers ^^
I hope this helps !
b²+4 when b =-4..........
Answers
Answer:
20
Step-by-step explanation:
-4 x -4 = 16
16 + 4 = 20
Hope this helps. Pls give brainliest.
Answer:
You need to explain more!!! WILL GIVE BRAINLIEST !! PLS ANSWER !!! i think they’re congruent but id.k
Answers
Answer:
yes
Step-by-step explanation:
aeb goes in a triangular angle
Triangles ABC and ADC are shown below. Paul claims that triangles ABC and ADC are congruent.
Based on the diagram, determine whether each statement below can be used to justify the claim. Select Yes or No for each statement.
.
.
.
.
Triangles ABC and ADC are congruent because the triangles satisfy the AAS triangle congruence criterion. (Yes or No)
Triangles ABC and ADC are congruent because the triangles satisfy the ASA triangle congruence criterion. (Yes or No)
Triangles ABC and ADC are congruent
because there is a rotation that will carry one triangle onto the other. (Yes or No)
Triangles ABC and ADC are congruent because there is a reflection that will carry one triangle onto the other. (Yes or No)
Triangles ABC and ADC are congruent because there is a translation that will carry one triangle onto the other (Yes or No)
Answers
Answer:
1 no
2 yes
3 no
4 yes
5 no
(((()))))
Triangles ABC and ADC are congruent based on the ASA congruence theorem, and by reflection, one triangle can be carried onto the other triangle, therefore:
Statement 1 is NOStatement 2 is YESStatement 3 is NOStatement 4 is YESStatement 5 is NORecall:
The diagram shows the congruence theorem that can prove that two triangles are congruent.Two triangles that are reflection of each other can also be said to be congruent triangles.Thus:
The image of both triangles given shows that they have two pairs of angles and an included side, which means that the ASA Congruence Theorem can be used to prove their congruency. Therefore,
Statement 1 is NOStatement 2 is YES.Also, the transformation that can justify that triangles ABC and ADC are congruent is reflection that will carry one triangle onto the other triangle.
Therefore,
Statement 4 is YESStatement 3 and 5 is NO.Learn more about triangle congruency on:
https://brainly.com/question/17305386
Translate the point (15,32) using the rule (x,y) > (x +3, y - 7)
Answers
Answer:
(18, 25 )
Step-by-step explanation:
The translation rule
(x, y ) → (x + 3, y - 7 )
means add 3 to the original x- coordinate and subtract 7 from the original y- coordinate, then
(15, 32 ) → (15 + 3, 32 - 7 ) → (18, 25 )
The arena at the berry center holds 9,500 people. During one of the graduation ceremonies,95% of the seats were occupied. How many people attended the ceremony
Answers
Answer:
9,025
Step-by-step explanation:
Given that:
Total capacity of berry center arena = 9500
Percentage seats occupied during a graduation ceremony = 95%
The number of attendees can be obtained thus :
Percentage seats occupied * total capacity
95% * 9500
0.95 * 9500
= 9,025 people
a 300$ suit is marked down by 20% what is the sale price
Answers
Answer:
$240Step-by-step explanation:
$300 x .20 = $60
$300 - $60 = $240
Hope this helps!! Please consider marking brainliest! Have a good one!!
If f(x) = 4x + 12 is graphed on a coordinate plane, what is the y-intercept of the graph?
4
8
12
16
Answers
Answer:
12
Step-by-step explanation:
To find the t- intercept, let x = 0 in f(x), that is
f(x) = y = 4(0) + 12 = 0 + 12 = 12
y- intercept = 12
Answer:
12
Step-by-step explanation:
