A contractor charges $35 for the installation of gutters, plus $1.50 per foot. If one installation cost $162.50, how many feet of gutter were required?
Answer:
I'm pretty sure it is 85 feet
Find the value of x.
2x
120°
700
A. 55
B. 35
C. 25
D. 10
Answer:
for this question you need to take the 12p and 700 and add then dived by 2x which then gives you your answer
Simplify the expression
4 + 3(x + 2)
Answer: 3x+10
You welcome!
The trend line passes through (10,9) and (35,0). Write an equation for the trend line.
Answer: Solution :
Step 1 :
Make a scatter plot of Lily’s running data.
Step 2 :
To draw a trend line, use a straight edge to draw a line that has about the same number of points above and below it. Ignore any outliers.
Step 3 :
Find the slope of the trend line.
The line passes through points (2, 20) and (4.5, 45).
Use the slope formula.
m = (y2 - y1) / (x2 - x1)
Substitute x1, = 2, y1 = 20, x2 = 4, and y2 = 45.
m = (45 - 20) / (4.5 - 2)
m = 25 / 2.5
m = 10
Step 4 :
Find the y-intercept of the trend line.
Slope-intercept form equation of a line :
y = mx + b
Plug y = 20, m = 10 and x = 2.
20 = 10 · 2 + b
20 = 20 + b
Subtract 20 from both sides.
0 = b
Step 5 :
Use your slope and y-intercept values to write the equation.
Slope-intercept form equation of a line :
y = 10x + 0
So, the equation for the trend line is
y = 10x
Example 2 :
David records the number of chapters and the total number of pages for several books as given below.
No. of chapters
3
4
5
8
10
11
15
17
19
No. of pages
20
44
50
95
90
130
125
170
160
Step-by-step explanation:
I need this quick!!!
Write down the similarities and differences of photosynthesis and chemosynthesis (venn diagram) first to answer appropriately will get brainliest!
Answer:
They are both processes by which organisms produce food. Photosynthesis is powered by sunlight while chemosynthesis is powered by chemical energy
ik I'm late but just wanted points hope you passed whatever you did
PLEASE HELP YOULL GET 20 POINTS
Suppose a movie rental company charges $9.99 per month plus $1.25 for every movie rented.
A. Write a function rule that represents the relationship between the number of movies rented in a month and
the rental charge for that month.
b.
Write an equation that you could solve to find how many movies you rented if the total rental charge for one
month was $23.74.
C.
Solve this equation using a table.
Answer:
9.99+ 1.25x. X represents the every movies rented. I think my answer matches b, I am not sure.
Step-by-step explanation:
Nick is buying one DVD player and some DVDs. At Electronics-R-Us, the DVD player is $60 and the DVDs are $12 each. At Movies-n-More, the DVD player is $80 and movies are $10 each. If the cost at the two stores is equal, how many DVDs did Nick purchase?
You score an 80% on your test. You answer 44
quesitons correctly. How many questions were on the
test?
Answer:
55
Step-by-step explanation:
GCF factoring introduction
Which expression is the result of factoring the expression below by taking out its greatest common factor?
16x^2-8x=?
Help. Please open powerpoint and help me!
Answer:
30.4%
1000 at £1.10
1000 x 1.10 = £1100
35% of 1000 is given away
1000 - 35% = 1000 - 350 = 650 left
35% of £1100 = £385, subtract to get £715 pounds worth of pins left
650 are left, with 385 pounds lost
60% of 650 = 390 pins sold at £3 each
40% of 650 = 260 sold at £5 for 2
3 x 390 = £1170 made from the first lot
260/2 = 130 x 5 = £650 made from the second lot
£1170 + £650 = £1820 from sales
Sales - cost to make - losses (giveaways) = profit value
1820 - 1100 - 385 = 335 pounds of profit
To find the gross profit margin, we take the profit, and find what percentage of the production cost it is.
335 is about 30.45% of 1100
30.45%, which is 30.4% to 1 decimal place.
The user is not responsible for any errors and all care should be taken to validate answer by self before submission.
answer all correctly
Answer:
2. y = -9x + 7
2. y = 3x - 2
3. y - 6 = 10(2x - 1)
1. 5x + 2y = 10
4. 5x = 3y + 9
3. y + 2 = 6(x - 4)
Step-by-step explanation:
10) pls help i’ll give 20 points :)
Answer: The blank space in the equation is 4.
Step-by-step explanation: -6 x +2 is -12. -48/-12 is 4. Therefore, the blank space in the equation is 4.
-2(-6x+2u-3)
-3x-6(-6y+6x)-2y
3(w-6)-5w
PLEAZE SIMPLIFY THEESE FOR ME ASAP please i need this really bad :(
Answer:
c
Step-by-step explanation:
i just did the test this is my first answer please like
What is the expression of the product of w and 8
Answer:
The expression would be 8w
What is x/-3+20=30? Can someone pls help me
Answer:
x=510
Step-by-step explanation:
You can first combine like terms to get x/17=30
The inverse operation of division is multiplication so you can multiply by 17 on both sides to get your final answer: x=510
Which Proportion is correct?
Answer:
sorry but i need the points <3
Step-by-step explanation:
Need help ASAP
which point could represent 5 over 3?
Answer:
I think D, I am not sure though
Step-by-step explanation:
Answer:
5/3 is 5÷3 = 1.666666. point C is closest to 1.67.
Marsha swam 400 meters in 6
minutes and 12 seconds. Convert that time to minutes.
Answer:
6 minetes? how does this work?
Step-by-step explanation:
Y = -3 + 1/2x 3x + 2y = 2
Help ASAP this is due today
Josh can long-jump 195% of his height with a running start. If Josh is 66 inches tall, how far can he long-jump?
Answer: 128.7 inches
Step-by-step explanation:
Josh's height is 66 inches.
When he jumps with a running start, he can jump as far as 195% of his height.
The length he can jump is therefore 195% multiplied by his height:
= Josh height * 195%
= 66 * 195/100
= 128.7 inches
Answer: 128.7
Step-by-step explanation: I've done this question before
Translate the given phrase into an algebraic expression.
Three is subtracted from
g
Answer:
g - 3
Step-by-step explanation:
g- 3
Hope that helps!
A colony of bacteria starts out with 175 cells and they double every hour write an equation that models the number of cells y after x hours
Answer:
200
Step-by-step explanation:
6−3+4x+1= in one solution
Answer:
4x + 4
Step-by-step explanation:
1. 6 - 3 = 3 + 1 = 4
2. You keep the 4x.
3. So 6−3+4x+1= 4x + 4.
1. What is 7/50 as a Percentage?
2. What is 3/25 as a Percentage?
3. What is 3/16 as a Percentage?
Please help!
The Hu family gose put for lunch and the piece of the meal is $56 the sales take on the meal is 7% and the family also leave a 20% tip on the pre tax amount what is the total cost of their meal
Answer:
$56 x ( 7% + 20% ) = $15.12 => $56 + $ 15.12 = $71.12
Step-by-step explanation:
[tex]x^{2} + 36x + 324 = (x + m)^{2} [/tex]
which of the following is the value of m?
A. 36
B. 18
C. 12
D. 6
Answer:
B. 18
Step-by-step explanation:
[tex]x^{2} + 36x + 324 = (x + m)^{2} [/tex]
[tex](x+18)^{2}= (x + m)^{2} [/tex]
[tex]\cancel x+18= \cancel x + m[/tex]
[tex]18= m[/tex]
pls help
Solve the following system of equations for y using elimination:
6x – 12y = 24
-X – 6y = 4
A. -6
B. 0
C. -1
D. 4
Answer:
C
Step-by-step explanation:
Find the slope between the following two points: (-4, 6) (5, 2)
Answer:
m=-4/9
Step-by-step explanation:
Hope this helps ❤
solve for z 7z + 4 - 9z = 8 (also please don't have the answer be a negative)
Answer:
z = -2
Step-by-step explanation:
lol okay If it said that
Evaluate each expression:
1. (-1) x 2 x 3
2. (-1) x (-2) x 3
3. (-1) x (-2) x (-3)
Need Answer for all the expressions.