Answer:
Step-by-step explanation:
2x + 10 + 3x + 30 = 180
Add like terms
5x + 40 = 180
5x = 180 - 40
5x = 140
x = 140 / 5
x = 28
hope it helped
(2x + 3x )+(10 + 30)= 180
5x + 40 = 180
5x = 180 - 40
5x = 140
x = 28
Which linear equation would pass through the origin?
y = x - 1
y = x - 1
y = 2x
y = 2x
y = x + 1
y = x + 1
y = 2x - 2
y = 2x - 2
Answer:
y=2x
Step-by-step explanation:
it will pass through the origin.
if you take x to be 0 y will also be 0 if you take x to be 1 y will be two.
this will form a straight line that passes through the origin
Write an equation and find the 10th term of the sequence 4500, 1500, 500, 166.67...
Answer:
10th term = .076208...
Step-by-step explanation:
The sequence is a geometric sequence
Use the formula
[tex]a_{n} = ar^{n - 1}[/tex] where "a" is the first term, r is the common ratio and n is which term in the sequence.
So, in your problem a = 4500, r = 1500/4500 = 1/3 and n = 10
[tex]a_{10} = 4500(1/3^{10 - 1} )[/tex]
= 4500(1/59049) = .076208...
-2 +2 = -3(x-4)
what is x
Answer:
x = 4
Step-by-step explanation:
Mark brainliest
The point D(-1,-5) is rooted 180 counterclockwise around the origin what are the coordinates of the ruesulting pointe
Answer:
D'(1,5)
Step-by-step explanation:
If you rotate a point 180 counter-clockwise around the origin, then it makes the x and y coordinates negative. In this case, it would make the coordinates positive because both coordinates are already negative. The answer would be D'(1,5).
HELP! GEOMETRY
The theme park company is building a scale model of the killer whale stadium main show tank for an investor's presentation. Each dimension will be made 6 times smaller to accommodate the mock-up in the presentation room. How many times smaller than the actual volume is the volume of the mock-up?
Step-by-step explanation:
Volume is cubed. so it would be 6^3
so 6*6*6 = 216
r=37.05 ft;0= pi over 21
Answer:
0 is pi over 21
x78 - 37.05
[tex]x^{2} \neq \sqrt{x}[/tex]
[tex]\frac{x}{y} x_{123} \beta \alpha \neq \lim_{n \to \infty} a_n \left \{ {{y=2} \atop {x=2}} \right.[/tex]
can i please have help? :) match each function to the correct organic compound. PROTEINS a. used for energy b, used for tissue repair and growth c. used for storing and transmitting genetic d. used for long - term storage
Answer:
b
Step-by-step explanation:
They are used for tissue repair and growth
9 A rectangle of perimeter 42 cm is
pcm long and q cm broad. If the
difference between the length and
breadth is 9 cm. find
pand q
the area of the rectangle
Answer:
The correct answer is = p = 15 and q = 6.
Step-by-step explanation:
Given:
Perimeter of rectangle = 42 cm
p - q = 9 cm
length = p
width = q
we know:
Perimeter of rectangle= 2(l+w)
solution:
42 = 2(P+q)
21= p+q
Difference of p and q = 9 cm.
Then, P+q=21 .... 1
P-q=9 ....2
Adding both 1 and 2
2P = 30
P= 15cm and
q = 15-9
= 6cm
Describe 3 different situations where you would need to know how to
calculate a percentage of a price.
Urgent!!!!!!
I will give y'all brainlest:((((
Answer:
as your intelligence in your mind
Answer:
when calculating the discounted price of an item
(You spend $42.00 on groceries, but you have a coupon for 10% off. What is the final price of your bill?)
when calculating tax
(You buy a pair of sunglasses for $49.00. The sales tax is 7%.How much do you need to pay including tax?)
when calculating the mark-up of a price
(James bought a pair of jeans for $23 . He sold it online on marks it up by 20% . How much did he profit?)
Solve 4[10x + 5) = 260
Answer:
sry dont know
Step-by-step explanation:
Answe
its x=6
Step-by-step explanation:
[tex]\frac{3}{x+3} -\frac{4}{x-3}=\frac{5x}{x^{2} -9}[/tex]
Answer:
Step-by-step explanation:
[tex]\frac{3}{x+3}-\frac{4}{x-3}=\frac{3*(x-3)}{(x+3)(x-3)}-\frac{4(x+3)}{(x-3)(x+3)}\\\\=\frac{3*x-3*3}{(x+3)(x-3)}-\frac{4*x+4*3}{(x+3)(x-3)}\\\\=\frac{3x-9}{x^{2}-3^{2}}-\frac{4x+12}{x^{2}-3^{2}}\\\\=\frac{3x - 9 -(4x + 12)}{x^{2}-3^{2}}\\\\=\frac{3x-9-4x-12}{x^{2}-9}\\\\=\frac{-x-21}{x^{2}-9}\\\\[/tex]
[tex]\frac{3}{x+3}-\frac{4}{x-3}=\frac{5x}{x^{2}-9}\\\\\frac{-x-21}{x^{2}-9}=\frac{5x}{x^{2}-9}\\\\-x-21=\frac{5x}{(x^{2}-9)}*(x^{2}-9)\\[/tex]
-x - 21 = 5x
Add 'x' to both sides
-x -21 +x = 5x + x
-21 = 6x
6x = -21
x = -21/6
= -7/2
x = -3.5
Find the slope-intercept form of an equation of the line perpendicular to the graph of x – 3y = 5 and passing through (0, 6).
Answer:
y=-3x+6
Step-by-step explanation:
x-3y=5
y=1/3x-5/3
slope of perpendicular line is -3 (opposite reciprocals)
y=mx+b
x=0 and y=6
6=3x+b
6=3(0)+b
6=b
y=-3x+6
On a number line, what is the distance between -8 and -2?
A-10
B-6
C6
D10
Answer:
the answer is c) or 6. I hope it helps
Answer:
the answer is C.6
Step-by-step explanation:
when solving this you are going back up the number line... which is positve because you are adding, if the question was what is the distance from -2 to -8 it would be negitive 6 because you are going down the line!
Find the value of x in the triangle shown below
Answer:
Step-by-step explanation:
Use the Pythagorean Theorem to solve for z. a^2 + b^2 = c^2, which a and b being the side lengths
9^2 + 12^2 = 81+ 144
81+144= [tex]225^{2}[/tex]
[tex]\sqrt{225}[/tex] = 15
z= 15
Answer:
C) x=15
Step-by-step explanation:
9^2+12^2=225
x=sq rt 225=15
Kenji's town voted on a new speed limit. Of the votes received, 39 were in favor of the new speed limit and 13 were opposed. What percentage of the votes were in favor of the new speed limit?
Ik, I'm asking a lot of these but I HATE mathhhhh
Answer:
75%
Step-by-step explanation:
You need to find the total number of votes first. Just add 13 and 39 which would equal 52.
Then divide the number of people in favour by the total number of voters and multiply by a 100 to find the percentage.
39 + 13 = 52
39/52 = 0.75
0.75 x 100 = 75.0
75%
Which answer choice shows an equation that correctly represents the relationship shown in the table below between Days, x, and Total Miles, y?
Answer:
y = 5x
Step-by-step explanation:
.......................
To land the plane on the runway the pilot must descend using the angle of depression on 4º,
The plane is currently at a height of 2764 feet above sea level. How many feet away is the
airplane?
A. X= 39,623.6 feet
B. X= 38,623.6 feet
C. X= 41,623.6 feet
D. X= 37,623.6 feet
Answer:
a
Step-by-step explanation:
Find the missing value to the nearest hundredth.
Cos = 5/36
Answer:
Step-by-step explanation:
"cos" by itself is meaningless. It needs an argument.
cos(x°) = 5/36
x° = arccos(5/36) ≅ 82.2°
The smith family went out for dinner the price of the meal was $39.85 the sales tax was 8.1% of the price of the meal the tip was 17% of the meal and the sales tax how much did the smith family pay for the meal including tax and tip PLEASE HELP ILL GIVE LOTS OF POINTS
9514 1404 393
Answer:
$50.40
Step-by-step explanation:
Adding the tax multiplies the amount by 1+8.1% = 1.081.
Adding the tip multiplies the amount by 1+17% = 1.17.
Then the amount with tax and tip is ...
$39.85 × 1.081 × 1.17 = $50.40
The Smith family paid $50.40 for the meal.
Quadrilateral ABCD is rotated 90° about the origin. What are the coordinates of quadrilateral A’B’C’D?
A. A (5,-5), B' (1.-5). C'(1.-2).
D'(5.-1)
B. A(-5, -5), B'(-5, -1) C'(-2,-1), D'(-1,-5)
C. A'(-5,5), B'(-1,5), C'(-1,2).
D'(-5,1)
D. A'(5, -5), B' (5. -1), C' (2-1),
D' (1.-5)
Answer:
A
Step-by-step explanation:
Answer:
A. A (5,-5), B' (1.-5). C'(1.-2).
D'(5.-1)
Step-by-step explanation:
I got right
Find the midpoint of the line segment with end coordinates of: (−4,−4) and (−4,−8)
Answer:
Салам помогите чё у меня все в английском
Step-by-step explanation:
0 и 4 ?
write the following phrase as an algebraic expression.
A number divided by 14
Answer:
x÷14
Step-by-step explanation:
easy dude easy this needs to be 20 characters long
Answer:
[tex]\frac{x}{14}[/tex]
Step-by-step explanation:
:)
can someone find x for me?
Answer:
Question 4: x = 106
Question 5: x = 118
Step-by-step explanation:
Question 4: The exterior angles of a triangle are going to add up to 360.
128 + 126 = 254
360 - 254 = 106
x = 106
Question 5: The exterior angles of a polygon add up to 360 (a quadrilateral is a polygon).
A right-angle = 90
90 + 34 = 124
360 - 124 = 236
236 / 2 = 118
x = 118
I hope this helps! :)
$19.99, $8.99, $35.99, $49.99, $49.99, $39.99, $99.99, $79.99, $35.99, $19.99, $49.99, $29.99, $49.99, $54.99, $35.99, $49.99, $19.99, $8.99, $29.99, $35.99 what's the median
The Median is $34.99.
It is required to find the median.
What is a median?The median is the middle value in a set of data. First, organize and order the data from smallest to largest. The median is the value separating the higher half from the lower half of a data sample.
Given:
The data below :
$19.99, $8.99, $35.99, $49.99, $49.99, $39.99, $99.99, $79.99, $35.99, $19.99, $49.99, $29.99, $49.99, $59.99, $35.99, $49.99, $19.99, $8.99, $29.99, $35.99
The middle numbers are $19.99 and $49.99, add them both and divide by 2 we have,
Median
=$19.99 +$49.99/2
= $34.99.
Therefore, the Median is $34.99.
Learn more about Median here:
brainly.com/question/21447357
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if diameter of a circle is 28cm.find radius & circumference.
Answer:
Radius = 14 cm, Circumference = 88 cm
Step-by-step explanation:
d = 28 cm
r = 1 / 2 * 28
= 14 cm
Circumference = 2πr
= 2 * 22 / 7 * 14
= 2 * 22 * 2
= 88 cm
Hope it helps :)
Please mark my answer as the brainliest
Step-by-step explanation:
Diameter (d) = 28 cmRadius (R) = d /2 = 28 / 2 = 14 cmCircumference (C) = πd= 3.14 * 28= 87.92[tex]hope \: it \: will \: help[/tex]
Diego is building a boat dock. The length
of the dock is (X + 8) feet. The width of the
dock is (x + 3) feet. Create 2 equivalent
expressions to represent the perimeter of
the boat dock.
Answer:
(x + 8) + (x + 8) + (x + 3) + (x + 3)
and
4x + 22
Two equivalent expressions to represent the perimeter of the boat dock are P = 2[(X + 8) +(X + 3)] or P = 4X + 22.
What is a perimeter?"A perimeter is a measurement of the outside of a shape. In order to find a perimeter, we have to find the sum of all the sides of the shape."
Given
Length of the dock = (X + 8) feet
Width of the dock = (x + 3) feet
A rectangle have length and width.
So the perimeter of the rectangle is 2(length + width)
Formula to find the perimeter of shape
Perimeter of the shape = Sum of all the sides of the shape
P = (X + 8) +(X + 3) + (X + 8) +(X + 3)
⇒ P = 2[X + 8 +X + 3]
⇒ P = 2[2X + 11]
⇒ P = 4X + 22
Hence, two equivalent expressions to represent the perimeter of the boat dock are P = (X + 8) +(X + 3) + (X + 8) +(X + 3) or P = 4X + 22.
Learn more about perimeter here
https://brainly.com/question/6465134
#SPJ2
Find the value of x in the isosceles triangle shown below.
5
5
C
6
Choose
answer:
= 761
x = V11
x = 15
Answer:
D. x=4
Step-by-step explanation:
We can solve this with the Pythagorean Theorem for the right triangle that we can see (which is half of the triangle).
The bottom length is 3 and the hypotenuse is 5.
The Pythagorean Theorem is a²+b²=c².
We can plug this in:
3²+x²=5²
9+x²=25
x²=16
x=4
Find the slope of the line that passes through these two points: (-2,-2) and (1, 2) -
Answer:
4/3
Step-by-step explanation:
If you count, because the coordinates are smaller, you will know that the y-coordinate moves up 4 spaces, and the x-coordinate moves to the right 3 spaces.
Find the value of the variable. Round decimal to nearest tenth if necessary.
Answer:
4 * X
Step-by-step explanation:
WHAT IS X AND THEN I WILL PUT ANSWER I COMMENTS
In January, Mr Tan's students read 20 books. In Febuary, they read 15 books. What is the percent increase or decrease in the number of books they read?
A. 5% decrease
B. 15% increase
C. 25% increase
D. 25% decrease
Answer:
D. 25% decrease
Step-by-step explanation:
Since it's clear that they read less books to find how much it decreased we multiply 100 with 15 then divide it by 20
100 × 15 ÷ 20 = 75 this result shows a 25% decrease.