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kkurt [141]
3 years ago
11

Answer correctly , will mark brainliest answer !!!!

Mathematics
1 answer:
Darya [45]3 years ago
3 0

Answer:

width : x+4

Step-by-step explanation:

(x+9)(x+4) = x^2+4x+9x+36

x^2+13x+36

think of numbers that multiply together to get 36

and of those number, what numbers add up to 13

9 times 4 equals 36

9 plus 4 equals 13

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Use the distributive property (expand) to write an equivalent expression for: 3(4x-2t). Type your answer ( I NEED THIS RIGHT AWA
Eddi Din [679]

Answer:

The distributive property here is to just multiply each value by tree number outside the parenthesis.

3 ( 4x - 2t)

12x - 6t

That would be your answer.

5 0
2 years ago
Oliver works at a book store.He packed 20 identical paperbacks and 9 identical textbooks in a box .The total mass of the book wa
Natasha_Volkova [10]
Let x be the mass of the paperbacks and y be the mass of the textbook.

20x + 9y = 44.4 ----------- (1)
25x + 10y = 51 -------------(2)

(1) x 10:
200x + 90y = 444 --------(1a)

(2) x 9:
225x + 90y = 459 --------(2a)

(2a) - (1a):
25x = 15
x = 0.6 -------- sub into (1)

20 (0.6) + 9y = 44.4
12 + 9y = 44.4
9y = 44.4 - 12
9y = 32.4
y = 3.6 

So the paperback's mass is 0.6 pounds and textbook is 3.6 pounds




7 0
3 years ago
Mr. Brown owned a house, which he rented for $60 a month. The house was assessed at $9000. In 1975 the rate of taxation was incr
sergiy2304 [10]

Answer:

Raised by $2.25/month

Step-by-step explanation:

9000/1000=9

28-25=3

3*9=27

27/12=$2.25

7 0
4 years ago
Find the equation of a line in slope-intercept form, containing the points (9,2.6) and (8,2.2).
Zolol [24]
The equation in slope-intercept form would be y = 0.4x - 1

hope this helps!!
4 0
3 years ago
How much would you need to deposit in an account now in order to have $4000 in the account in 15 years? Assume the account earns
Finger [1]

Answer:

$2500

Step-by-step explanation:

CA=p(1+MR÷1200)

4000=p(1+180×4÷1200) 15 yrs =15×12=180 month

4000=1.6p

p=4000÷1.6

p=2500

please give me brainliest

5 0
2 years ago
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