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3 years ago

A fraction in which the GCF of the numerator and the denominator is 1 is written in

1 answer:

5 0

"lowest terms". Whenever 2 numbers have a GCF of 1, that means there isn't anything that can divide out of both numbers, which is called "lowest terms." It means that the fraction cannot be reduced any more.

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What is the constant in this expression? 3 x squared minus 2 x + y minus 4

cupoosta [38]

What are the numbers x and y are sopposed to be?

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3 years ago

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5. A deck should have a perimeter of 90 feet and a minimum area

Ket [755]

Answer:

The minimum value of the width is 15 ft and the maximum value of the width is 30 ft

Step-by-step explanation:

Let

x -----> the length of the deck

y ----> the width of the deck

we know that

The perimeter of the deck is equal to

$P=2(x+y)$

$P=90\ ft$

$90=2(x+y)$

$45=(x+y)$

$x=45-y$ -----> equation A

The area is equal to

$xy\geq 450$ -----> inequality B

$(45-y)y\geq 450\\ \\-y^{2} +45y-450\geq 0$

Solve the quadratic equation by graphing

The possible width of the deck are the values of y in the interval

[15,30]

All real numbers greater than or equal to 15 ft and less than or equal to 30 ft

see the attached figure

The minimum value of the width is 15 ft and the maximum value of the width is 30 ft

7 0

3 years ago

Bill changes £450 from his bank and gets $729.

Kobotan [32]

Answer:

Bill got more ($1.62) for each pound exchanged than did Gwyll ($1.56).

Step-by-step explanation:

Let's calculate the unit rate in each case, that is, the number of dollars obtained through exchanging one (1) pound for dollars:

Bill:

$729

--------- = $1.62 per pound

£450

Gwyll:

$780

---------- = $1.56 per pound

£500

Bill got more ($1.62) for each pound exchanged than did Gwyll ($1.56).

8 0

3 years ago

7 times a number is 8 less than the square of that number. Find the negative solution.

kap26 [50]

Answer:

Step-by-step explanation:

x^2-8x+x-8

x(x-8)+1(x-8)

(x+1)(x-8)

The negative number is x=-1

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3 years ago

What is 2/3 divided by 4/5

artcher [175]

Answer:

5/6

Step-by-step explanation:

$\frac{2}{3}$ divided by 4/5 can be written as 2/3 times 5/4

2/3 *5/4=10/12=5/6

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3 years ago

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