I’m studying and I have trouble with this problem and I need an explanation. Please help me! Thank you
Answers
Answer:
Step-by-step explanation:
Im going to assume they want x+108.
You have 2 expressions sitting on a line, so when added to each other they must = 180
So add and set up an equality
x+108+x+78=180
Combine like terms
2x+186=180
Solve
2x+186=180
-180 -180
2x+6=0
-6 -6
2x=-6
________
2
x=-3
Substitute X for -3
-3+108=
105.
Related Questions
The equation of a line is y= -3x - 18. What are the coordinates of the point on the
line when the value of yis 3?
Answers
Answer:
-7
Step-by-step explanation:
3=-3x-18
3x=-18-3
3x=-21
x=-7
Find the vertex of the parabola y = 2x2 + 10x + 8
Answers
Answer:
The vertex is -5/2 and -9/2
Step-by-step explanation:
I looked it up on math
way
A parabola is a mirror-symmetrical planar curve that is nearly U-shaped. The vertex of the parabola y = 2x² + 10x + 8 is (-2.5, -4.5).
What is a quadratic equation?A quadratic equation is an equation whose leading coefficient is of second degree also the equation has only one unknown while it has 3 unknown numbers. It is written in the form of ax²+bx+c.
Then its roots are given as:
[tex]x = \dfrac{-b \pm \sqrt{b^2 - 4ac}}{2a}[/tex]
A parabola is a mirror-symmetrical planar curve that is nearly U-shaped.
y = a(x-h)² + k
where,
(h, k) are the coordinates of the vertex of the parabola in the form (x, y);
a defines how narrower the parabola is, and the "-" or "+" that the parabola will open up or down.
The general form of a parabola is written in the form ax²+bx+c, which is a quadratic equation. While the vertex form of the parabola is written as y=a(x-h)² + k.
Given that the equation of the parabola is y = 2x² + 10x + 8. Now if we compare the general equation of the parabola with ax²+bx+c, the value of a, b, and c will be 2, 10, and 8, respectively.
Further, the vertex of the parabola can be written as,
h =−b/2a
h = -10 / 2(2)
h = -10/4
h = -2.5
k = -(b² - 4ac) / 4a
k = -[10² - 4(2)(8)] / 4(2)
k = (100 - 64) / 8
k = -36/8
k = -4.5
Hence, the vertex of the parabola y = 2x² + 10x + 8 is (-2.5, -4.5).
Learn more about Quadratic Equations:
https://brainly.com/question/2263981
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Please guy help me I will mark you as brainliest if you give me a good answer !!
You are selling candy bars for
$2.50 each. The cost of those
candy bars was $1.25 plus a setup
fee of $200 for manufacturing.
1) what is the profit from selling 220 candy bars?
Answers
Answer: 75 dollars
Step-by-step explanation:
220 times 2.5 is 550 which means you make 550 dollars. However, it cost 4575 dollars to make the candy bars because 220 times 1.25 is 275 and 275+200 is 475. You have to subtract 475 from 550 to get your answer which is 75 dollars.
Answer:
$75
Step-by-step explanation:
multiply total bars by cost 275+ 200=475
multiply total bars by sale price =550
Henry decided he was going to give away his Pokemon cards. He divided them equally into 4 piles. Each person got 37 cards. How many cards did Henry have in the beginning?
pls help i need the answer and the equation
Answers
Answer:
37 x 4 = 148
148 cards
Step-by-step explanation:
Would really appreciate it if you could give me brainliest. Have a good day! :)
Answer:
37×4 = 148
Step-by-step explanation:
so your answer is 148
1. observe the following tables and find if x and y are directly proportional:
Give answer plzz
Answers
yes here x and y are directly proportional when looking at the x-coordinate
Step-by-step explanation:
here,
x1=7, y1=14
x/y=7/14
=1/2.
when considering the second coordinates,
X2=9/18=we will get the answer again
1/2.
all the coordinates is proportional in this form it is all will get the answer one by two so this x -axis and y-axis are directly proportional
Work out the size of obtuse angle DOF, giving a reason for your answer.
Answers
Answer:
104
This is because angle at the center is twice the angle at the circumference
Step-by-step explanation:
104 is the size of obtuse angle DOF because the angle at the center is twice the angle at the circumference.
What is an obtuse angle?An obtuse angle is any angle greater than 90 °: Straight angle is a measurement angle equal to 180 °: Zero angles is a measurement angle equal to 0 °: Complementary angle is the angle at which the sum of the measurements is 90 °: Complementary angles are the following angles: The total dimensions are 180 °.
Now we know that angles below 180 degrees and above 90 degrees are obtuse. Examples of bluntness include 110 °, 135 °, 150 °, 179 °, 91 °. Therefore, all angles in the range of 90 ° to 180 ° are obtuse.
Learn more about the circumference. here: https://brainly.com/question/14283575
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What’s the area of this parallelogram
Answers
Answer:
360%
if not u question isnt correct
hope this might help you
Answer: Multiply the base by the height
for example A=B x H
Step-by-step explanation:
7) 4r^2- 12r + 5=0 in quadratic form
Answers
Answer:
(2r-1)(2r-5)
Step-by-step explanation:
4r^2-10r-2r+5=0
2r(2r-5)-(2r-5)
(2r-1)(2r-5)
Which ones are true?
Answers
Answer:
The last three answers.
Step-by-step explanation:
6 3/7 as a improper fraction
Answers
Answer:
45/7
Step-by-step explanation:
6 × 7 = 42 + 3 = 45
45/7
good luck i hope this helps :)
Answer: 45/7
Step-by-step explanation:
Multiply the denominator by the whole number
7*6
Add the answer from Step 1 to the numerator
42+3=45
Write answer from Step 2 over the denominator
45/7
In decimal form:
6.42
i’ll mark brainliest or whatever
Answers
Answer:
i think its 75 because 90 should equal x+15 so 90-15=75
Find the value of y
Answers
Answer:
y=3/2
Step-by-step explanation:
.......................
factor 9x-12xy plss help thx
Answers
If this answer helped you please consider making this answer brainliest :)
Enter the correct answer in the box.
The formula for centripetal acceleration, a, is given by this formula, where v is the velocity of the object and r is the object’s distance from the center of the circular path:
a=v^2/r
.
Solve the formula for r.
Answers
Answer:
Step-by-step explanation:
For this case we have the following equation:
a = v ^ 2 / r
From here, we must clear the value of speed.
We have then:
v ^ 2 = a * r
v = root (a * r)
Answer:
the formula for the velocity is:
v = root (a * r)
Keisha is saving money to buy a game. So far she has saved $24, which is three-fourths of the total cost of the game. How much does the game cost?
HELPPPPP
Answers
Answer:
32 dollars is the cost of the total game
Step-by-step explanation:
24 divided by 3 is 8
8 times 4 is 32
A triangle has an area of 36 square meters. What could its base and height be?
b = 12 m, h = 6 m
b = 9 m, h = 4 m
b = 9 m, h = 9 m
b = 8 m, h = 9 m
Answers
Answer: b = 9 m, h = 4 m
Step-by-step explanation:
9x4 equals 36, but all of these other answers do not equal 36. :)
Answer:
b = 9 m, h = 4 m
Step-by-step explanation:
2.)
Find the perimeter of an isosceles triangle whose base is 16 cm and whose height is 15 cm.
Answers
Answer:
50 cm
Step-by-step explanation:
The altitude from the vertex to the base bisects the base and divides the triangle into 2 right triangles.
Using one of the right triangles with legs 8 and 15 , then hypotenuse h is
h² = 8² + 15² = 64 + 225 = 289 ( take the square root of both sides )
h = [tex]\sqrt{289}[/tex] = 17
The 2 congruent sides of the isosceles triangle are 17 cm
Then the perimeter P is
P = 17 + 17 + 16 = 50 cm
Pairs of shoes are manufactured for $24. They are sold to a warehouse with a mark-up of 15%. The warehouse sells the shoes to a distributor after charging a holding fee of $10 per pair. The distributor sells them to ‘Fine Shoes’ for a percentage profit of 12%. The store then marks them up by 30%.
a. Determine the price of a pair of shoes if you buy it from one of the ‘Fine Shoes’ stores (round to the nearest 5 cents). Show working out.
Answers
Answer: $54.75
Step-by-step explanation:
The price the shoes are sold to the warehouse is:
= 24 * ( 1 + 15%)
= 24 * 1.15
= $27.60
The price the warehouse sells it is:
= 27.60 + 10
= $37.60
Price distributor sells is:
= 37.60 * 1.12
= $42.112
Fine shoes will then sell at 30% profit:
= 42.112 * 1.3
= $54.7456
= $54.75
Plz help!!!!!!!!!!!!!!!!!!!!!
Answers
how many grams are in 4.0 moles of H2O
Answers
Answer:
There are 72.06 grams in 4 moles of H2O. I hope this helps!
a sequence of numbers is 8, 15, 22, 29. explain why 96 will not be a term in this sequence?
Answers
Answer:
It want touch/Connect Either way the closest it can get was 99
8, 15, 22, 29, 36, 43, 50, 57, 64, 71, 78, 85, 92, 99.
need help please somebodt
Answers
First you find the area of the square
A=a^2 which is
=10^2
A=100
Then you find the area of the circle
A=πr^2
= π(5)^2
A≈78.54
Now you subtract the 78.54 from 100 to get 21.46
A coupon discounts the total grocery bill by $3.50. How many dollars g is the bill after the discount if the bill before the discount is b dollars? Write an equation to represents the situation.
Answers
Answer:
g=b-3.50
Step-by-step explanation:
Need help with questions 3
Answers
Answer:
Step-by-step explanation:
B
Answer:
1. I cant see 2. 32 3.60
Step-by-step explanation:
y = 5x - 9
y - 5x = 4
(3,2)
no solution
an infinite number of solutions
Answers
Answer:
(3, 2)
2 = 5 x 3 - 9
= 15 - 9
= 6
2 is not = 6
y = 5x - 9
y - 5x = -9
y - 5x = 4
Use elimination
-15
ANSWER: So there are no solutions
can u pls help me i need help
Answers
Answer:
cbbbbb
Step-by-step explanation:
(20)(0.85)(1.06) = 18.02
20 x 0.85 = 17, the price after the 15% discount. Cat’s equation added 15%.
You could also do 20 x 0.15 = 3, the amount of the discount, and subtract from $20.
17 x 0.06 = 1.02, the amount of tax
Total cost = 17 + 1.02 = 18.02
This tax part is represented by the 1.06 in the equation. The sale price + 0.06 of that price in tax.
Let me know in the comments if you have questions.
What is the equation of a line that goes THROUGH (-2, 3) and is PERPENDICULAR to the line
y = -3x+2
Answers
What is the value of x
A 19
B 22
C 67
D71
Answers
Answer:
Step-by-step explanation:
(2x+4)° + 42° = 180°
x = 67°
WRITE AN EXPRESSION WITH ATLEAST FIVE TERMS THAT SIMPLIFIES TO 9X+25
Answers
Answer: 19 + 11x - 7 - 2x + 13
Step-by-step explanation:
19 + 11x - 7 - 2x + 13
Bring like terms together
11x - 2x + 19 - 7 + 13
9x + 12 + 13
9x + 25
Do not really speak Spanish need help
