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kirill [66]
4 years ago
10

state which basic Property of addition or multiplication justifies truth of the mathematical expressions 0+7y+2=7y+2

Mathematics
1 answer:
dlinn [17]4 years ago
8 0
The given equation is:

0 + 7y + 2 = 7y + 2

This equation is showing that addition of 0 leaves the expression unchanged. 0 is known as the Additive Identity this means if we add or subtract 0 from any expression, number or equation the result won't be changed.

Therefore, the equation satisfied the property of Additive Identity of Real Numbers.  
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I don’t know this one
torisob [31]

Answer:

3077.2

Step-by-step explanation:

A circle's mass is found by

Pie times R^2

7^2 is 49, times 3.14 is 153.86

then you Multiply 153.86 by 20 which gives you 3077.2

5 0
4 years ago
Read 2 more answers
How many kilometers did Amelia drive per liter
Korvikt [17]

Answer:

8 kilometers

hope it helps

Step-by-step explanation:

6 liters = 48 kilometers

48 / 6 = 8

1 liter = 8 kilometers

6 0
3 years ago
Please help thank you
sergiy2304 [10]
8-3(2)
8-5
=3
the answer should be 3 after plugging in the variables.

3 0
3 years ago
Calvin works two different jobs. He worked a total of 40 hours last week. Of the time he worked, 16 hours were spent at the
gtnhenbr [62]

Answer: 768

Step-by-step explanation:

24 times 20 =480 dollars

16 x18=288

480+288= 768

so yea D IS THE ANSWER!!!

hope thats helps :)

3 0
3 years ago
In the file below. (Sorry, question has pictures can't write it out.)
UNO [17]
As what I can observe, the pathway can be formed with 2 right triangles. Thus, I'll get the area of the 2 right triangles and multiply its area by the paving cost per square meter.

Area of Right Triangle: ab / 2
a = 6 2/3 m ⇒ 20/3 m; b = 3m

Area of 1 triangle= (20/3 m * 3 m) ÷ 2 = 20 ÷ 2 = 10 m²   

Area of 2 triangles = 10m² * 2 = 20 m²

Total cost = $40 * 20m² = $800 
5 0
3 years ago
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