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deff fn [24]
2 years ago
6

Eighty percent of a roof, or 2800 square feet of the roof, has been re-shingled.

Mathematics
1 answer:
asambeis [7]2 years ago
8 0

Answer:

a) 35,000 sq ft

Step-by-step explanation:

x = total area

the question is: 80% of what number equals 2800

.8x = 2800

x = 2800/0.8

x = 3500

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!!!!!!!50 points!!!!!!!! QUESTION BELLOW HELP ASAP!!!!!!!!!
kirza4 [7]
Hmm, interesting
one way would be to multply it out or set it equal to 11x where x is a whole number (if x is not a whole number, then it is not divisible)
11x=7^6+7^5-7^4
undistribute 7^4
11x=(7^4)(7^2+7^1-1)
11x=(7^4)(49+7-1)
11x=(7^4)(55)

56=5*11

11x=(7^4)(5)(11)
divide by 11
x=5(7^4)



aka, find if 11 is a factor of that number


x=5(7^4)
4 0
3 years ago
Read 2 more answers
If one factor of 6x^2+5x-6 is 3x-2, whats the other factor
nekit [7.7K]

Answer:

the answer is -3x+2 good luck

7 0
3 years ago
30 POINTS for the fastest answer! What is the slope of the line that passes through the points (2,9)
Rama09 [41]

Answer:

m= -2/1

Step-by-step explanation:

4 0
3 years ago
Identify the 25th term of the arithmetic sequence 2, 1 and 3 over 5,
raketka [301]
First, you have to transform your numbers into proper fractions:
1 and 3/5 = (5+3)/5 = 8/5
1 and 1/5 = (5+1)/5 = 6/5

Therefore your arithmetic sequence is 2, 8/5, 6/5, ...

In an arithmetic sequence, the difference between a given term and the preceding one is equal to the difference between the <span>following </span>term and the given one. In your case:
d = 8/5 - 2 = (8-10)/5 = -2/5
As a prove: d = 6/5 - 8/5 = -2/5

Now, in order to find the 25th term you need to apply the formula:
an = a + (n - 1)d
where an is the number you are looking for, a is the first term, n is the term you are looking for and d is the distance.
Hence, 
a₂₅ = 2 + (25-1)(-2/5) = 2 - 24·2/5 = 2 - 48/5 = (10-48)/5 = -38/5
3 0
3 years ago
Read 2 more answers
Dalls needs 1/4 liter of milk of a recipe is 3/10 of a liter of milk left in the carton.
dolphi86 [110]

Answer:

B)1/20 of a liter

Step-by-step explanation:

1/4 = 5/20

3/10 = 6/20

6/20 - 5/20 = 1/20

Wow.. that was easy XD

5 0
3 years ago
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