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Irina-Kira [14]
3 years ago
9

Which property of addition is shown here? (4+5)+6=4+(5+6)

Mathematics
2 answers:
hram777 [196]3 years ago
5 0

Answer:

I am pretty sure it is Associative property of addition

Step-by-step explanation:

lidiya [134]3 years ago
4 0

Step-by-step explanation:

associative property of addition

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Melons cost $20 pet Crate, and apples cost $8 per create. an order comes in for a total of 48 crates for $420. what was the numb
Alika [10]

Answer:

The number of melon was 3 and the number of apples was 45.

Step-by-step explanation:

1. Melons cost $20 per crate and apples cost $8 per create. If the total was 48 crates for $420, you can make the following system of equations, where x is the number of melons and y is the number of apples:

\left \{ {{x+y=48} \atop {20x+8y=420}} \right.

2. By applying the Method of substitution, you can solve for y in the first equation and substitute it into the second one to find x. Then, you can substitute the value of x into the first equation to find y:

y=48-x

20x+8(48-x)=420\\20x+384-8x=420\\12x=36\\x=3

3+y=48\\y=45


4 0
4 years ago
What is the sum of the first 5 terms of this geometric series? Use . -4 + 12 + (-36) + ⋯
yKpoI14uk [10]

Answer:

The sum of the first 5 terms is -244

Step-by-step explanation:

To calculate the sum of the geometric series, we need the first term, the common ratio and the number of terms we would like to sum.

The first term here is -4

The common ratio is T2/T1 or T3/T2 = 12/-4 = -3

number of terms n = 5

The formula to use is;

Sn = a(1-r^n)/(1-r)

Plugging these values, we have;

Sn = -4(1-(-3)^5)/(1-(-3))

Sn = -4(1+243)/4 = -1(244) = -244

7 0
3 years ago
Which is greater, 35% of 60 or 30% of 80?
lara [203]
35% of 60 = (35/100)*60 = 0.35 * 60 = 21

30% of 80 = (30/100)*80 = 0.30 * 80 = 24

24 is greater than 21.

30% of 80 is greater.

8 0
3 years ago
Read 2 more answers
The legs of a right triangle measure 70 centimeters and 64 centimeters.
mario62 [17]

Answer:

94.85

Step-by-step explanation:

use pytagorian theorem

c^2=a^2+b^2

5 0
3 years ago
Add to find the sum.<br><br> 2.34 + 45.6 + 978 = ___
Bumek [7]
2.34 + 45.6 +978= 1025.94
4 0
2 years ago
Read 2 more answers
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