Answers
Answer:
8
Step-by-step explanation:
We know that angles in a triangle add up to 180, so:
5x-60+2x+40+3x-80=180
Simplify
10x-100=180
Solve
Subtract 100 from both sides
10x=80
Divide 80 by 10 to find x
x=8
Related Questions
ANSWER PROPERLY FOR BRAINLIEST OR ELSE I REPORT
Answers
Answer:
A: 0.3
B: 0.3
Step-by-step explanation:
Basically both answers are the same
w+(−2.8)=4.3 whats the answer
Answers
Answer:
w=7.1
Step-by-step explanation:
Answer:
w=7.1
Alternate form
w= [tex]\frac{71}{10}[/tex] , w= 7[tex]\frac{1}{10}[/tex]
Where is the point (0, -5) located on the coordinate plane?
A. In quadrant IV
B. In quadrant III
C. On the x-axis
D. On the yaxis
Answers
Hope this helps!!
A line has a slope of 3 and passes through the point (3, 3). What is its equation in slope-intercept form?
Answers
Answer:
y=3x-1
Step-by-step explanation:
The y-intercept is at -1 if you go down 3 left 1, and then down 3 left 1 again and you are left at (0,-1)
Marking Brainlest! 20pts. Thanks
The scatter plot shows the relationship between the average number of nightly customers and the number of months since a restaurant opened. The equation represents the linear model for this data.
y = 5x + 120
What does the number 5 in the equation mean in this context?
A. There were 5 customers per night when the restaurant opened.
B. The average number of customers per night decreased by 5 each month.
C. The restaurant has been open for 5 months.
D. The average number of customers per night increased by 5 each month.
Answers
Answer:
the answer is C trust me by
Which expression is equivalent to x6 – 9?
(x3)2 – 33
(x3)2 – 32
(x3)3 – 32
This polynomial is an example of a .
Answers
Step-by-step explanation:
[tex] {x}^{6} - 9 = { ({x}^{3} })^{2} - {3}^{2} [/tex]
Answer:
(x^3)^2-3^2 , or b.
and its the diffrence of suqares.
Step-by-step explanation:
Elizabeth bought 6 lipsticks for $15. How many lipsticks can be bought for $60
Answers
Answer:
4 lipsticks
Step-by-step explanation:
15+15=30, 30+30=60
What is the factorization of the expression below?
42 - 9y2
O A. (4x - 3y)(x + 3y)
B. (4x-3y)(x - 3y)
O C. (2x-3)(2x-3y)
O D. (2x-3)(2x + 3y)
Answers
[tex]\sf \longmapsto \: 4x {}^{2} - 9y {}^{2} [/tex]
There are no like terms so we can't simplify itFactoring[tex]\sf \longmapsto(2x+3y)(2x−3y)[/tex]
[tex] \boxed{\sf (2x+3y)(2x−3y)}[/tex]
Answer:
Choice D
Step-by-step explanation:
Factorise: 4x²-9y²
We can obtain the factorization by this identity:
a² - b² = (a+b)(a-b)Rewrite the given expression as:
(2x)² - (3y)²Let (2x)² be a and (3y)² be b according to the identity.
So applying the identity:
(2x+3y)(2x-3y)(2x-3y)(2x+3y)Choice D is accurate.
Charlie is making chocolate cake for his birthday party. He found a recipe that needs 2 cups of cocoa powder for every 3 cups of sugu. Al of his friends
are coming, so he uses 6 cups of cocoa powder in his cake,
How many cups of sugar should Charlie uso?
Answers
Step-by-step explanation:
the mix follows the ratio 2/3 (cups of cocoa to sugar).
2 × x = 6 cups
x = 6/2 = 3
so, the cocoa cups number is multiplied by the factor 3, and we need to multiply also the sugar cup number with the same factor to keep the ratio value unchanged :
so, we need 3×3 = 9 cups of sugar.
How to solve quadratic inequalities.
Answers
Answer:
Find the "=0" points
in between the "=0" points, are intervals that are either
greater than zero (>0), or
less than zero (<0)
then pick a test value to find out which it is (>0 or <0)
Wha ratio is equivalent to the ratio 6 : 12
Answers
Answer:
1:2
Step-by-step explanation:
1:2 would be a equivilant
also most simplified
Answer:
1 :2
Step-by-step explanation:
divide 24 apples between Roopa and Amita in ratio 5:7
Answers
Answer:
Roopa: 10
Amita: 14
Step-by-step explanation:
5x+7x=24
12x=24
x=2
5x=10
7x=14
Answer:
Step-by-step explanation:
5/7*24
=5/7*24
=17.14 apples
In a class of 36 students, 29 do mathematics and 20 do chemistry. If 5 students do neither, how many students do chemistry but not mathematics?
Answers
Answer:
20 by 36
divide and you get answer.
Answer:
1 r8
Step-by-step explanation:
20 ÷ 36 and then u get up answer
There are approximately 4 million births per year in the U.S. Express this quantity in births per minute.
Answers
Answer:
~7.61 births/minute
Step-by-step explanation:
What is the equation of this line in slope-intercept form?
A: y = 4x + 1
B: y=−4x+1
C: y=4x−1
D: y=−14x+1
Answers
Answer: B
Step-by-step explanation:
The slope-intercept is usually written as y = mx + b form, where m is the slope, and b is the y-intercept. The y-intercept is the y value when x is equal to 0.
We can first eliminate C, because the y-intercept of the graph is 1.
To solve for slope, which is the m, choose two points, (-1, 5) and (1, -3).
Slope = (y2 - y1) / (x2 - x1)
= (-3 - 5) / (1 - (-1))
= (-3 - 5) / (1 + 1)
= -8/2
= -4
Plug in the slope and y-intercept, we get y = -4x + 1
I WILL GIVE BRIANLISTSActivity Thinking About Circles Around You Do this activity together to investigate circles in the real world. Have you ever wondered why runners start at different spots on a track instead of lining up together? This is called a staggered start. Sincetrac Since tracks have semicircles (or half circles) on the ends, if all the runners lined up together, runners in outer lanes would need to run farther than runners in inner lanes. Why? Because the circumference of the outer lane is greater than the circumference of the inner lane. Staggering starting positions ensures that all runners run the same distance! ? Where do you see circles and semicircles in the world around you? Why could finding the area or circumference be helpful?
Answers
Answer:
Step-by-step explanation:
1) The sun, the moon, windows, drawings, this: . And much more…
2) For example, how far you have to walk around a track, how big the moon is, how much ribbon you need to wrap around a circle present…
if 15 men can do a work in 12 days, how many men will do the same work in 6 days?
Answers
Answer:
7.5?
Step-by-step explanation:
help me please???????
Answers
Answer:
The answer is 25.1 degrees.
Shama types at a constant rate she types 12 letters in 4 seconds what is the constant of proportionality for the relationship of letters to minutes
Answer choices
3
48
180
2,880
Help I need this answer fast I’m taking a test and I can’t fail 7th grade
Answers
Answer:
Shama types at a constant rate she types 12 letters in 4 seconds what is the constant of proportionality for the relationship of letters to minutes
Answer choices
3
48
180
2,880
Help I need this answer fast I’m taking a test and I can’t fail 7th grade
Step-by-step explanation:
Shama types at a constant rate she types 12 letters in 4 seconds what is the constant of proportionality for the relationship of letters to minutes
Answer choices
3
48
180
2,880
Help I need this answer fast I’m taking a test and I can’t fail 7th grade
The constant of proportionality for the relationship of letters to minutes is 180.
What is Proportionality?Two set of quantities are said to be directly proportional or just simply proportional if the corresponding elements of these two sets has a constant ratio. This constant is called the proportionality constant or coefficient of proportionality.
We have the proportional relationship between letters typing and the time in minutes taken to type the letters.
Time taken by Shama to type 12 letters = 4 seconds
= 4 / 60 minutes
= 1/15 minutes
Proportionality constant can be found by taking the ratio of these quantities.
That is, proportionality constant = 12 / (1/15)
The fraction in the denominator will be taken to the numerator as the reciprocal and the operation changes into multiplication.
Proportionality constant = 12 × (15/1) = 180
Hence the proportionality constant for the relationship of the quantities letters and minutes is 180.
To learn more about Proportionality, click :
https://brainly.com/question/29126727
#SPJ5
PLEASE HELP!! I WILL MARK BRAINLIST IF RIGHT!Jace buys a case of soda. A case contains 24 cans of soda and costs $5.28. Jace will sell each can of soda for $0.75 at the basketball game. How much profit will Jace earn if he sells all of the cans of soda? (Picture below)
Answers
Answer:
d
Step-by-step explanation:
Answer:
$12.72
Step-by-step explanation:
0.75*24=18 dollars-5.28=12.72 dollars
Tamara has $500 in her bank account. Tamara withdraws money to buy concert tickets. After the withdrawal, the account balance changed by $75.00
Enter the amount of money, in dollars, Tamara must deposit to return her account to the orginal balance.
Tamara must deposits
Answers
Answer: 75
Step-by-step explanation:
Answer:
500 - 425 and that id 75 so Tamara has spent 425 dollars
use the distributive property:
(x-5)(-2)
Answers
Answer:
10-2x
Step-by-step explanation:
(x-5) (-2)= x(-2) -5(2) = -2x - 10 = 10-2x.
Answer:
-2x+10
Step-by-step explanation:
(x-5)(-2)
(x×-2) (-5×-2)
= -2+10
HELP PLSSS ITS DUE TMRWW
Answers
Answer:
P=6
Step-by-step explanation:
okay so the problem states that this pentagon has one line of symmetry.
if you know that AE=4x, AB=2x+1, and Bc=x+2, then you know that CD=x+2, and DE=2x+1.
since you know the perimeter is 18 cm, you can make an equation to find x:
4x+2(2x+1)+2(x+2)=18
-->4x+4x+2+2x+4=18
-->10x+6=18
-->10x=12
-->x=1.2
P would be 6
HELP PLEASE!!! WILL GIVE BRAINLIEST
Answers
Answer:
See below for answer
Step-by-step explanation:
Domain is the x-value in the ordered pair
Range is the y- value in the ordered pair
1. D = {3, 2, 1, 0} R = {-5, -4, -3, -2}
2. D = {-2, 0, 2, 4} R = {1, 2, 4, 6}
3. D = {10, 8, 6, 4} R = {-1, 2, 5, 8}
4. D = {-5, -3, -1, 1} R = {-5, -3, -1, 1}
5. D = {-4, -1, 2, 3} R = {4, 0, 4, 6}
(c) Ada is x years old and Bill is y years old.
Last
year,
Bill was 6 times as old as Ada.
(1) Form an equation in x and y and show that it simplifies to y = 6x - 5.
Answers
Using a system of equations, it is found that the simplified equation is y = 6x - 5.
Ada is x years old.Bill is y years old.Last year, Ada was x - 1 years old and Bill was y - 1 years old.
Bill was 6 times as old as Ada, hence:
[tex]y - 1 = 6(x - 1)[/tex]
[tex]y - 1 = 6x - 6[/tex]
[tex]y = 6x - 6 + 1[/tex]
[tex]y = 6x - 5[/tex]
The simplified equation is y = 6x - 5.
For a similar problem, also involving a system of equations, you can check https://brainly.com/question/13773803
in a subway, x men and y women travel. explain what is meant by the expression: y-x
Answers
Answer:
Step-by-step explanation:
y - x means the the difference in the number of women compared with men.
So if there are 20 women and 14 men, y - x = 20 -1 4 = 6 , that is 6 more women than men.
If there are more men than women then y - x will have a negative value, and there will be, if we flip the above numbers. 6 more men than women.
(a) Aradh borrows R30 000 from the bank at 15% p.a simple interest, payable over 4 years. Calculate his monthly repayments.
Answers
Answer:
R834.92 is the monthly repayments.
Step-by-step explanation:
mr johnson borrowed $750 for 1 year. he has to pay 6% simple interest. how much interest will he pay?
Answers
Answer:
795$
Step-by-step explanation:
750 x 0.06 = 45
750 + 45 = 795
Mr. Gooddeal sells cars. He gets to keep 1/6 of his sales commission. How much must he sell in order to earn $1500.
Answers
Hey luvvs, can you help me out with this p.s if u do freind meeee
Answers
Answer:
[tex]\huge\boxed{E)-\frac{100}{17}}[/tex]
Step-by-step explanation:
The multiplicative inverse of the fraction [tex]\frac{a}{b}[/tex] is simply [tex]\frac{b}{a}[/tex]. The sign would not change for this reason.
Hope it helps :) and let me know if you want me to elaborate.