I need a real answer.
A roofing contractor buys 30 bundles of shingles and 4
rolls of roofing paper for $1040.
In a second purchase (at the same prices), the
contractor buys 12 bundles of shingles and 16 rolls of
roofing paper for $2000.
Create and solve a system of equations in order to
determine how much each bundle of shingles (x) and
roll of roofing paper (y) would cost
Answer:
Cost of one bundle of shingles is $20 and cost of one roll of roofing paper is $110.
Step-by-step explanation:
Let the cost of each bundle of shingles = x
And cost of the roofing paper = y
Contractor buys 30 bundles of shingles and 4 rolls of roofing paper for $1040.
30x + 4y = 1040
15x + 2y = 520 -----(1)
In a second purchase contractor buys 12 bundles of shingles and 16 rolls of roofing paper for $2000
12x + 16y = 2000
3x + 4y = 500 --- (2)
Equation (1) multiplied by 2 then subtracted from equation (2)
(3x + 4y) - 2(15x + 2y) = 500 - 1040
(3x - 30x) + (4y - 4y) = -540
-27x = -540
x = 20
From equation (1)
15(20) + 2y = 520
300 + 2y = 520
2y = 220
y = 110
Therefore, cost of one bundle of shingles is $20 and cost of one roll of roofing paper is $110.
1. Delia brushes her teeth 6 hour
each day.
Units of Time
1 week = 7 days
1 hour = 60 minutes
Write and solve an equation to find
how many minutes Delia brushes
her teeth in 1 day. Then use that to
find the number of minutes she
brushes her teeth in 1 week.
Answer:
Answer:
PART A: 28 hours, PART B: 16800 minutes
Step-by-step explanation:
Delia Brushes her teeth = 1/6 hour
PART A
Total Week= 1 week
Total number of days in a week= 7 days
Total number of hours in a day= 24 hours
Total number of hours in a week= 24× 7 hours
Total number of hours in a week= 168 hours
Number of hours that Delia brushes her teeth = × 168 hours
Number of hours that Delia brushes her teeth = 28 hours
Hence, the correct answer is 28 hours
PART B
Total number of days in a week= 7 days
Total number of hours in a week= 168 hours
Total number of minutes in a week= 168 × 60
Total number of hours in a week= 100800 Minutes
Number of minutes that Delia brushes her teeth = × 100800
Number of hours that Delia brushes her teeth = 16800 minutes
Hence, the correct answer is 16800 minutes
Step-by-step explanation:
need help with question 4
Answer:
Perimeter: 18u^2
Area: 18u^2
Step-by-step explanation:
perimeter is just adding all the sides together so 6+3+6+3
area is multiplying length by width so 6•3
both give us 18
hope this helps chu <3
4/7 of 29= (estimate each product)
Answer:
16.6 for nearest tenths
16.57 for nearest hundreths
Step-by-step explanation:
4/7*29/1=
29*7=203/7 to get the same denominator
203 x 4 = 812 mulptiply to get the fraction
7 x 7 = 49
812/49=16.5714285714
HELP PLZ I WILL GIVE WHAT EVER
Answer: 112
Explanation: I find the area of the base but if there is a specfic formula on doing this what is it? But if not that should be your answer.
Answer:
75.62
Step-by-step explanation:
Find all the missing elements:
B
a
C = 120°
b = 5
c = 11
A
b C
A = 36.8° B = 23.2° = [?]
Round to the nearest tenth.
Enter
Answer: a= 7.6
Step-by-step explanation:
just moving the correct answer from a comment to an actual submission
Answer:
The answer for Acellus people is C=7.6
Step-by-step explanation:
The first term of an arithmetic sequence is 3. The common difference of the sequence is 1.5 tune the first term. Write the next five terms in the sequence:
Answer:
3, 7.5, 12, 16.5
Step-by-step explanation:
Tn = a + (n-1)d
a = 3 and d = 1.5×3 = 4.5
T2 = a + d = 3 + 4.5 = 7.5
T3 = a + 2d = 3 + 2(4.5) = 12
T4 = a + 3d = 3 + 3(4.5) = 16.5
Hope its correct and have a great day :)
T
x
What is the area of a kite with diagonals that are 9
inches and 12 inches long?
108 in 2
O 54 in2
108 in2
60 in?
Please help me solve this
Answer:
108in^2
Step-by-step explanation:
Because the rule says that you should multiply them by each other
For rhombus GHJK, find m21.
Sketch a graph to math this: The Olympic skier waited at the top of the mountain for 2 minutes before heading down the ski slope. She went faster and faster for the first 5 minutes, and then she slowed to a stop. Finally, it took her 10 minutes to walk to her car.
Answer:
7 minutes
Step-by-step explanation:
Zack picked 18 carrots from his garden and divided them equally into 2 bunches to give to his neighbors. How many carrots are in each bunch?
Answer:
9
Step-by-step explanation:
he had 18 so he divide them by to so 18/2 9 so there 9 in each bunch
You are at a coffee shop and notice that as the temperature of the room gets colder, more people order hot beverages. From this observation, you conclude that there is a _______ between the temperature and hot beverage sales at this coffee shop. Group of answer choices negative relationship curvilinear relationship no relationship positive relationship
Answer:
negative relationship.
Step-by-step explanation:
An experiment can be defined as an investigation which typically involves the process of manipulating an independent variable (the cause) in order to be able to determine or measure the dependent variable (the effect).
This ultimately implies that, an experiment can be used by scientists to show or demonstrate how a condition causes or gives rise to another i.e cause and effect, influence, behavior, etc in a sample.
Cause and effect can be defined as the relationship between two things or events in which an occurrence one (cause) leads to the occurrence of another (effect).
A negative relationship or correlation can be defined as the relationship between two variables in which there exist an inverse relationship between them i.e as one variable increases, the other decreases and vice-versa.
In this scenario, you are at a coffee shop and notice that as the temperature of the room gets colder, more people order hot beverages. From this observation, you conclude that there is a negative relationship between the temperature and hot beverage sales at this coffee shop because for the temperature to get colder it would decrease and for the hot beverages to be hot, its temperature must be increased.
PLEASE HELP ME!!! WILL MARK BRAINLIEST!!!
Answer:
1. 32 and 64
2. 24 and 17
3. 43 and 48
4. 25 and 15
Step-by-step explanation:
Answer:
1.2,4,8,16,32,64
2. 52,45,38,31,24,17
3.23,28,33,38,43,48
4. 65,55,45,35,25,15
Step-by-step explanation:
hope this helped :)
solve[5x-6/7] = -8 for x
please help
Answer:
7=7
Step-by-step explanation:
1 Let x=\frac{13}{5}x=
5
13
.
5\times \frac{13}{5}-6=7
5×
5
13
−6=7
2 Cancel 55.
13-6=7
13−6=7
3 Simplify 13-613−6 to 77.
7=7
7=7
hope this helps.
Which of the following graphs is not a function?
A.)W
B.)Z
C.) X
D.)Y
A function means that any input (x) has only one output (y)
I showed an example of where x has multiple outputs in the picture. In the example I circled (1,1) and (1,-1)
please help and can you explain how you got it? Also what grade level is the work (6th, 7th or 8th)?
Answer:
The equation of line p is y = -³/₂x + 3
Step-by-step explanation:
Let's first find the slope of the line. That's equal to Δy/Δx:
(-3 - 6) / (4 - (-2))
= -9 / 6
= -3/2
With that, we can plug it in to the format:
Δy = sΔx, or (y - y1) = s(x - x1):
y - 6 = s(x - (-2))
y - 6 = (-3/2)(x + 2)
y = -3x / 2 - 3 + 6
y = -³/₂x + 3
What is the MEAN for the following set of data?
5, 7, 8, 10, 12, 12
10
7
9
12
Answer:
9
Step-by-step explanation:
Answer:
the answer is 9
Step-by-step explanation:
https://kami.app/987hunntx5Pl can sum 1 help its 18Q and im doing somethig so i can get it finished rn its due in 15 min
Answer:
The link doesn't exist or was deleted or I don't have permission to view it.
Step-by-step explanation:
A farmer picked 496 oranges. He also picked 435 lemons. Which shows
how many more oranges than lemons he picked?
496 X 435
496 ÷ 435
496 - 435
496 + 435
Answer:
C
Step-by-step explanation:
:)
If cm on a map represents 20km on the ground ,how far apart are two villages that are 0.5cm aprt on the map?
Answer: 10 km
Step-by-step explanation:
20 km = 1 cm
villages are 0.5 cm apart
0.5+0.5=1
20/2= 10
so 10 km.
Alice sells bracelets 10 for $5. How much does 1 bracelet cost?
Answer:
FOR ALL MY POINTS write an argumentative essay on why dog parks are "helpful or harmful"
READ PROMPT
Step-by-step explanation:
Answer:
$2
Step-by-step explanation:
Because Alice sells 10 bracelets for 5 dollars, you have to do 10/5 which is equal to 2. Therefore, 1 bracelet cost $2.
Evaluate 8a- 1 + 0.5b when a = 1/4 and b = 10
Tom owns a pizza shop. He makes 30 cheese pizzas each day. Depending on how much time he has, Tom also makes some pepperoni pizzas every day. On Friday, he spent
4 hours making pepperoni pizzas, and he made 7 pepperoni pizzas every hour.
solve for p:
p + 1 < 8
Answer:
p < 7
Step-by-step explanation:
all muntiple of 5 is an odd number true proposition?
a of 5 is 2.5 b of 5 is 2.5 although 5+5=10 = 2.5×4 =10 (even) x of 5 is odd and y of 5 is even
Therefore, its false;)
Write x2 + 12x + 6 = 0 in vertex form using the completing-the-square method. (2 points)
a
(x - 12)2 - 30 = 0
b
(x - 6)2 + 36 = 0
c
(x + 6)2 - 30 = 0
d
(x + 12)2 + 36 = 0
Answer:
C- is more likely going to be your answer.
Which of the following situations can be represented by the expression 3n – 15 ? Select all that apply.
Answer: B
Step-by-step explanation:
E = {10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23}
A = {odd numbers}
B = {multiples of 3}
Complete the Venn diagram for this information.
6
A
B
e
15,2
Answer:
A=11,13,17,19 B=12,18 None=10,14,16,19 Both=15
Step-by-step explanation:
11,13,15,17,19 are all odd so they go in A
12,15,18 Are all multiples of 3 so they go in B
10,14,16,19 Are not classified so they go outside of the diagram but inside E
15 is odd and a multiple of 3 so put it in the center and not with A and B
whats 402 divided by 8 PLEASE HELP
Answer: 50.25
Step-by-step explanation:
Answer: 50.25
Step-by-step explanation: /