3 years ago

Which property is illustrated by the statement?

Mathematics

1 answer:

Gelneren [198K]3 years ago

6 0

Answer:

The Associative Property of Addition

Step-by-step explanation:

illustrated by the statement (3+2.8) + 5= 3+(2.8 +5). So D

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6 times a number n (write in algebraic expression)

yaroslaw [1]

6 x n or 6n, I'm pretty sure.

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4 years ago

Solve the system using substitution . y =2x +4 , 2x - y = 6

babymother [125]

no solution

substitute y = 2x + 4 into the other equation

2x - (2x + 4) = 6 ( distribute and simplify )

2x - 2x - 4 = 6 ( add 4 to both sides )

0 = 10 ← not possible

Hence the system has no solution

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If susan, janice, and melvin take 2.0 hours to walk to their school at a rate of 1.0 m/s, how far is their school from their hou

RideAnS [48]

Answer:

7.2 km

Step-by-step explanation:

Given that:

Hours taken = 2 hours

Walk rate = 1 m/s

Distance = Speed * time

Time taken in seconds = 2 * 60 * 60 = 7200 s

Hence,

Distance = 1 m/s * 7200s

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3 years ago

Students will be going to a Christmas fair at school. Entrance fee is $2.00 per person. You will have an option to purchase 0 to

andre [41]

Answer:

$y=3x+2\\\\where\ y\ is\ total\ expenditure\ and\ x\ is\ number\ of\ items.\ x\ can\ be\ any\ integer\ and\ 0\leq x\leq 4.$

Step-by-step explanation:

Let number of items $=x$

Let total expenditure $=y$

$cost\ of\ 1\ item=\$ 3.00\\\\Cost\ of\ x\ items=cost\ of\ 1\ item\times x=3.00x\\\\Entrance\ fee=\$ 2.00\\\\Total\ expenditure=Cost\ of\ items+Entrance\ fee\\\\y=3.00x+2.00\\\\y=3x+2$

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