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Anna [14]
4 years ago
7

2) A student uses the substitution method to solve the system of equations below algebraically.

Mathematics
1 answer:
Rasek [7]4 years ago
5 0
Pretty sure it's the last one.
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Any number that can be written as a fraction is?
Roman55 [17]
Every whole number is a rational number because whole numbers can be written as fractions.
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3 years ago
A) The distance around a rectangular room is 44 feet, and 120 tiles (each one is 1 sq. foot in size) are
Musya8 [376]

Answer:

Step-by-step explanation:

let x and y be the sides of the rectangle.

2(x+y)=44

x+y=44/2=22

y=22-x

1 tile=1 sq. ft.

120 tiles=120 sq.ft.

area=120 sq.ft.

xy=120

x(22-x)=120

22x-x²=120

x²-22x+120=0

x²-12x-10x+120=0

x(x-12)-10(x-12)=0

(x-12)(x-10)=0

x=12,10

if x=12

y=22-12=10

if x=10

y=22-10=12

floor dimensions are 12 ft ×10 ft

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3 years ago
What is the relationship that exist between two quantities in unit rate​
Molodets [167]

If the relationship between two quantities is a proportional relationship, this relationship can be represented by the graph of a straight line through the origin with a slope equal to the unit rate.

6 0
3 years ago
Read 2 more answers
A student factors a6 - 64 to (a2 - 4)(a4 + 4a2 + 16).Which statement about (a2 − 4)(a4 + 4a2 + 16) is correct?
IrinaK [193]

Answer:

Option (b) is correct.

The expression is equivalent, but the   term is not completely factored.

Step-by-step explanation:

Given :  a student factors  to

We have to choose the correct statement  about   from the given options.

Given   is factored to

Consider    

Using algebraic identity,

comparing  and b = 4, we have,

Thus, the factorization is equivalent but we can simplify it further also, as

Using algebraic identity,

Thus,

Can be written as

Thus, the expression is equivalent, but the   term is not completely factored.

Option (b) is correct.

4 0
2 years ago
Mr. Ayer cuts one melon into 8 equal pieces. write the number 1 as a sum unit fractions that name each piece of melon.
sertanlavr [38]
It would split up in eighths. So it would be like 1/8, 2/8, 3/8 ....
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4 years ago
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