A roof is supported o 7 rafter each 6 1/2 feet long at 70 cents running foot how much did those rafters cost

Answers

Answer 1

Answer:

$31.85

Step-by-step explanation:

total cost of the rafters  = total length of rafters used x cost per foot

total length of rafters used = number of rafters used x length of rafters

7 x [tex]6\frac{1}{2}[/tex]

to solve, convert [tex]6\frac{1}{2}[/tex] to an improper fraction

to convert to improper fraction, take the following steps :  

1. Multiply the whole number  by the denominator

2. Add the numerator to the answer gotten in the previous step

3. divide the number gotten in the previous step by the denominator  

7 x [tex]\frac{13}{2}[/tex] = [tex]\frac{91}{2}[/tex]

cost per foot = 70 cents

100 cents = 1 dollar

70 cents = $0.70

total cost of rafters = $0.70 x [tex]\frac{91}{2}[/tex] = $31.85


Related Questions

Suzie bought 17.75 lbs of flour. If the price for 1lb is $19.68, calculate the total amount she paid to the shopkeeper

Answers

17.75 x 19.68 = $349.32 is the answer
17.75 pounds of flour
( excluding the .75)
17 x 19.68 = $334.56
.75 = 3/4
19.68 / 4 = $4.92
($4.92 for every quarter of a pound)
4.92 x 3 = $14.76 ( .75 = 3/4)
334.56 + 14.76 = $349.32
CHECK
17.75 x 4 = 71 ( Figure out how many fourths make 17.75)
71 x 4.92 = $349.32

She paid the shopkeeper $349.32

The value of a car is deprecting at the rate of 12% Find the correct value of car when cost of car was rs 350000 last year

Answers

Answer:

The cost of the car is $ RS 308,000.

Step-by-step explanation:

Given that the value of a car is deprecting at the rate of 12%, to find the correct value of car when cost of car was $ RS350,000 last year, the following mathematical calculation must be performed:

100 - 12 = 88

88/100 = 0.88

350,000 x 0.88 = X

308,000 = X

Therefore, the cost of the car is $ RS 308,000.

find the percent increase is admission to the amusement park is raised from $70 to $80.

Answers

Answer:

14.286% increase

Step-by-step explanation:

Since the admission to the amusement park increased by $10 we need to find what percentage of $70 equals $10.

We can find this percentage by multiplying 10 (the difference in money) by 100 (a hundred percent), and dividing that by 70 (the initial cost)

[tex]10*100/70=14.286[/tex]

What is the equation of the line that passes through point (3, −1) and has a slope of 2?

Answers

Answer:

equation y = 3x + b.

Step-by-step explanation:  

To come up with the equation of a line in slope intercept form, we need the slope and the y-intercept. First, substitute the given slope in for m. We get the equation y = 3x + b.

Rectangle, Square, or Rhombus?

Answers

Answer:

maybe rhombus

Step-by-step explanation:

don't take my word for it

Answer:

I think Rhombus. I am not so sure.

Step-by-step explanation:

Have a nice day! :-)

can someone PLEASE help me with this!?! its due tonight

explaining your answer = brainliest

what is the perimeter of the square?

Answers

Answer:

24

Step-by-step explanation:

6*4

HELP ME NEED HELP NOW

Answers

Answer:

the product X Y is constant so the relationship is not an inverse variation.

Step-by-step explanation:

Find the value of x in the isosceles triangle shown below​

Answers

Answer:

x²+4² =8²

x²+16 =64

x² =64-16.

x² =48

x. =√48

answer is option D

Answer:

D

Step-by-step explanation:

The segment x is a perpendicular bisector and divides the triangle into 2 right triangles.

Using Pythagoras' identity in either of the 2 right triangles, then

x² + 4² = 8²

x² + 16 = 64 ( subtract 16 from both sides )

x² = 48 ( take the square root of both sides )

x = [tex]\sqrt{48}[/tex] → D

an article cost $1424 it may be purchased by depositing $560 and making monthly payment of 48 how many monthly are required to complete payment?

Answers

Answer:

18 monthly payments are required to complete payment

Step-by-step explanation:

We start with our $1,424.

Then subtract $560 from the original number above.

Leaving us with $864.

We then divide the $864 by $48 and we end up with 18.

So our answer is 18 monthly payments are required to complete payment.

plzzzzzzzzz guysssss im failinggggg

Answers

Step-by-step explanation:

a) Given,

Total marks in English = 90

Marks scored by James = 60

Therefore,

Percentage of marks scored

[tex] = \frac{60}{90} \times 100[/tex]

= 66.67% (approx. )

Then,

Total marks in Science = 150

Marks scored by James = 78

Therefore,

Percentage of marks scored

[tex] = \frac{78}{150} \times 100[/tex]

= 52%

At last,

Total marks in Maths = 120

Marks scored by James = 75

Therefore,

Percentage of marks scored

[tex] = \frac{75}{120} \times 100[/tex]

= 62.50%

b) In English test James scored highest percentage.

1. In the diagram below, segment AB is tangent to circle C at point D and
AC LBC. If m

Answers

Answer:

∠ DCB = 28°

Step-by-step explanation:

∠ ACD = 180° - (90 + 28)° = 180° - 118° = 62° , then

∠ DCB = 90° - 62° = 28°

I need help for this math question ASAP

A line segment joins points P(–1, –7) and Q(7, 3). Determine the length of PQ to 1 decimal place.

Answers

I’m just doing this for (-7,-1)

what do you think the soultion is to the queation. I need help???​

Answers

Answer:

w = 16, x = 11, y = 6, z = 7.5

Step-by-step explanation:

The scale factor is the ratio of corresponding sides, image to original.

scale factor = [tex]\frac{6}{8}[/tex] = [tex]\frac{3}{4}[/tex]

Then by proportion

[tex]\frac{12}{w}[/tex] = [tex]\frac{3}{4}[/tex] ( cross- multiply )

3w = 48 ( divide both sides by 3 )

w = 16

----------------

[tex]\frac{x}{12}[/tex] = [tex]\frac{3}{4}[/tex]

4x = 36

x = 9

-------------------

[tex]\frac{4.5}{y}[/tex] = [tex]\frac{3}{4}[/tex]

3y = 18

y = 6

----------------------------

[tex]\frac{z}{10}[/tex] = [tex]\frac{3}{4}[/tex]

4z = 30

z = 7.5

Can someone help I’m confused

Answers

Answer:

D and E

Step-by-step explanation:

Let's double check:

D. 9 ÷ 3 = 3

E. 4 × 9 = 36

---------------------------------------------------------------------------------------------------------------

Have a great summer :)

Answer:

the answers would be A, D, and E

Step-by-step explanation:

just replace the Cs with the number 9 and solve from there.

for example c/3=3 would say 9/3=3

2+2+2+2-2×2-2+2=? . (16-14-12-24)​

Answers

Answer:

12 I think

I'm not sure

Byeee

Answer:

4

Step-by-step explanation:

2+2+2+2-2×2-2+2 = 4

HOPE IT HELPS YOU ✌️

Any help is appreciated!!!!!!

Answers

Answer:

d

Step-by-step explanation:

ddddddddddddddddddddddddddfffffdff

I think the answer Is B but i am not sure

If f(x) = 2x - 6 and dx) = 3x + 9, find (f - g(x).
O A. (f- g)(x) = -x- 15
O B. (f- g)(x) = x + 15
O C. (f- g)(x) = -x+ 3
O D. (f - g)(x) = 5x + 3

Answers

Answer:

A

Step-by-step explanation:

Given that f(x) is 2x-6, and g(x) is 3x+9, all we have to do is subtract in order to find (f(x)-g(x)):

[tex](f(x)-g(x))=\\\2x-6-(3x+9)=\\2x-6-3x-9=\\-x-15[/tex]

[tex]\fbox{A}[/tex]

I hope this helps! Let me know if you have any questions :)

if the needle below is spun twice and the letters are recorded both times , which of the following would be the probability it would land on letters A and C (in either order)?

(1) 1/3
(2)2/3
(3)2/9
(4)5/6|

Answers

2/3 is the correct answer

Lauren is tutoring students at the library on Saturday. If she is at the library for a total of 6 hours and she helps each
student, one at a time, for 7 of an hour, how many students does she tutor?
3

Answers

Answer:

Lauren tutors 42 students in total

Step-by-step explanation:

She tutors for 6 hours and she teaches 7 students an hour , so we just have to multiply 7 by 6 which is 42

Hope it helps:)

Which is NOT a way to state the meaning of the expression c+5?

Answers

I need to see the graph

the sixth graders rasied money to fund a feild trip. the five classes raised $42, $51, $38, $49, and $40. what is the median on the ammount of money raised?

a. $36
b. $42
c. $40
d. $13

Answers

Answer; 38


Explanation: it is the number between 51 and 49

Answer:

The median is $42, or B.

Step-by-step explanation:

Our numbers are :

42, 51, 38, 49, and 40.

The first step to finding the median is ordering the numbers from least to greatest.

38, 40, 42, 49, 51.

Now we find the number perfectly in the middle - that's 42, between 49 and 40. The median is $42, or B.

Please mark brainliest!

Please Help I'll give brainliest

Answers

Answer:

259.8

Step-by-step explanation:

259.8. Is the answer

5.0×10

1


1.50×10

5




= ?

help please last day of school

Answers

Answer:

5.0x10=50

1.50x10=15

Step-by-step explanation:

calculator

Two containers, A and B begin with equal volumes of liquid.
120 ml is then poured from A to B.
А
B
Container B now contains 4 times as much liquid as A.
Find the volume of liquid left in container A at the end.
A
A
B.
B
Volume left in container A=
20
ml

Answers

Answer:

volume left in A is 80ml

Step-by-step explanation:

let original volume in both be x ml

after pouring from A to B

vol in A = x - 120

vol in B = x + 120

now it is given that

vol in B = 4 times vol in A

implies

[tex]x + 120 = 4 \times (x - 120) \\ x + 120 = 4x - 480 \\ 3x = 600 \\ x = 200[/tex]

hence original volume in A is 200ml. after pouring in B it is 200-120 = 80 ml

Find the equation in terms of x of the line through the points (-4,-6) and (1,9)

Answers

Answer:

y = 3x + 6

Step-by-step explanation:

y2 - y1 / x2 - x1

9 - (-6) / 1 - (-4)

15/5

= 3

y = 3x + b

9 = 3(1) + b

9 = 3 + b

6 = b

There are 5 red marbles, 15 blue marbles,
reach in and randomly draw two marbles without replacing the first, what is the
probability that both will be blue?

Answers

Answer:

Probability is 0.552, or about 55%

Step-by-step explanation:

first there are 20 marbles in total: odds are 15/20 = 3/4

Then, there are 19 marbles in total : odds are 14/19

So the odds of both of them being blue are: 3/4 * 14/19 = 0.552 (rounded to the thousandths place)

Please give brainliest thanks!

How many times does
1/8 go into 1/4

Answers

Answer:

One eighth is one part of eight equal sections. Two eighths is one quarter and four eighths is a half. It's easy to split an object, like a cake, into eighths if you make them into quarters and then divide each quarter in half

A system of equation is shown
y=-2x+b
y= 3x+b
What value of b is required so that the system has the solution (0,6)
b=
Please no link I need help badly!

Answers

Answer:

The answer is 6

Step-by-step explanation:

(0,6)

x=0,y=6

Substituting 0 for x and 6 for y

6=2(0) + b

6=b

or

6 = 3(0)+b

6=b

Therefore, b=6

You are taking a survey on your experience at Taco Bell. For the first three questions you can
answer Below Average, Average, or Above Average for each question. The last five questions
you can respond with either Agree or Disagree. How many total outcomes are there for this
survey? *

Answers

19 out come
9 for the first 3 questions
10 for the last 5 questions

Hope this helps ;)

The total outcomes for this survey are 864.

What are the outcomes of the set?

An elementary event is one with only one possible consequence. The sample space of an experiment is the event that contains all feasible results. A single consequence may appear in a variety of circumstances.

Given, You are responding to a poll about Taco Bell. You can select Below Average, Average, or Above Average for each of the first three questions. You may choose to agree or disagree with the past five questions.

Here, we utilize the combinations formula to determine how many outcomes there are in this survey.

Three questions have three options, while five questions have two.

Hence,

total outcomes = 3³ * 2⁵ = 27 * 32 = 864

Therefore, There are 864 total responses to this survey.

Learn more about the outcomes of the set here:

https://brainly.com/question/28353187

#SPJ2

Find x round your answer to the nearest tenth of a degree PLZ HELP ASAP BRAINLIEST!!!!!!!

Answers

Answer:

45.9˚

Step-by-step explanation:

use trig formulas

23 and 16 correspond to the hyp and adj sides to angle x.

adj/hyp is cos so use the cos formula.

cos x = 16/23

arccos --> inverse cos

x = arccos(16/23)

put it in a calculatior and round to nearest 10th.

45.92079....

= 45.9˚

Answer:

Step-by-step explanation:

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