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Jlenok [28]
4 years ago
9

A local post office sells stamps in packs of 4,6,and 7. Andy bought se era packs of 6. Harry bought several packs of 7. Erin bou

gh several packs of 4. Each of the friends ended up with same amount of stamps. What is the smallest number of stamps th at each person could have purchased?
Mathematics
2 answers:
Whitepunk [10]4 years ago
8 0
Andy bought 21 packs. Harry bought 12 packs. Erin bought 21 packs.
Scilla [17]4 years ago
7 0
<span>Andy bought 21 packs. Harry bought 12 packs. Erin bought 21 packs and that is the answer for all of them. :)</span>
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The area of a rectangular field is given by the trinomial t2 – 4t – 45. The length of the rectangle is t + 5. What is the expres
aniked [119]
The answer is: width = t - 9

A = l * w
A = t² - 4t - 45
l = t + 5
t² - 4t - 45 = (t + 5)w

w= \frac{ t^{2}  - 4t - 45}{t + 5} = \frac{t * t - 9t + 5t - 5 * 9}{t+5} = \frac{t(t - 9) + 5(t - 9))}{t+5} = \frac{(t-9)(t+5)}{t+5} =t-9
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3 years ago
Solve the problem.
Goshia [24]
Imagine a 'U' shape
sides are x legnth
base is b legnth
2x+b=25

area is height times base=xb

xb=50
2x+b=25
solve
minus 2x both sides
b=25-2x
sub for b
x(25-2x)=50
25x-2x^2=50
times -1 both sides
2x^2-25x=-50
add 50 both sides
2x^2-25x+50=0
use quadratic formula or something
x=2.5 or 10

A is the answer

4 0
3 years ago
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A plane left an airport and flew 3 miles north, 5 miles west, 2 miles north, 3 miles west, and then flew directly back to the ai
melisa1 [442]
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3 years ago
Find −5 5/6÷(−4 9/10). Write your answer as a mixed number in simplest form.
uranmaximum [27]

Answer: 1\dfrac{4}{21} .

Step-by-step explanation:

Given problem : \left(-5\dfrac{5}{6}\right)\div\left(-4\dfrac{9}{10}\right)

First we convert mixed fraction into improper fractions as

-5\dfrac{5}{6}=-\dfrac{5\times6+5}{6}=-\dfrac{30+5}{6}=-\dfrac{35}{6}\\-4\dfrac{9}{10}=-\dfrac{10\times4+9}{10}=-\dfrac{40+9}{10}=-\dfrac{49}{10}

Now , plug these values in the given expression , we get

\left(-5\dfrac{5}{6}\right)\div\left(-4\dfrac{9}{10}\right)=-\dfrac{35}{6}\div\left(-\dfrac{49}{10}\right)\\\\=\dfrac{-35}{6}\times\dfrac{-10}{49}\ \ \ [\text{By Property of fraction}]\\\\=\dfrac{350}{294}\\\\=\dfrac{25}{21}=1\dfrac{4}{21}

Hence, the answer is 1\dfrac{4}{21} .

8 0
3 years ago
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The spent 2,750 on the magazine adds.

2,750+2750=(2750x4)+(2750x2)=22,000
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3 years ago
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