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melomori [17]
3 years ago
14

Which property of addition is used in the expression? 0.5+ (0.4+0.8) = (0.5 +0.4) + 0.8

Mathematics
2 answers:
qwelly [4]3 years ago
7 0

Answer:

associative property

Step-by-step explanation:

because it involves grouping

AfilCa [17]3 years ago
6 0
Commutative property i think
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Solve the proportion 40/z+1 = 15/6
vovangra [49]

Answer:

<h2>z = 15</h2>

Step-by-step explanation:

\frac{40}{z + 1}  =  \frac{15}{6}  \\

<u>Cross multiply </u>

That's

15(z + 1) = 40(6) \\ 15z + 15 = 240

<u>Send 15 to the right side of the equation</u>

15z = 240 - 15 \\ 15z = 225

Divide both sides by 15

\frac{15z}{15}  =  \frac{225}{15}  \\

We have the final answer as

<h3>z = 15</h3>

Hope this helps you

7 0
3 years ago
A number is chosen at random from 1 to 15. Find the probability of
Brut [27]

Answer:

Correct option is

C

5/2

Total no. of numbers=15

No. of prime numbers between 1 to 15=6(2,3,5,7,11,13)

Probability = 15

6 = 52

5 0
3 years ago
Mandi learned that each 10% of charge on her cell phone gave her an hour and twenty minutes of use. While playing a game today o
Sonja [21]

Answer:

3hrs 12 mins

Step-by-step explanation:

For every 10% charge she gets 1hr 20mins (or 80 mins)

Charge drop = (81% - 57%) = 24%

Since 10% gives 80 mins;

          24% gives (24/10) x 80 mins = 192 mins

since 1hr = 60 mins

192 mins = 192/60 = 3hrs 12 mins

3 0
4 years ago
Hurry help ASAP!!!!!!!!!!! will give brainliest
Shtirlitz [24]
1. 3+2+1+2+3+1=12
2. 5+6+6+7+6+6=36
3. 2+4+3+3+2+4=18

Then add all those numbers up and divide them by 18.
12+36+18=66/18=3.6 you can round it up to c.4.
5 0
3 years ago
Peter owned a juice shop. He sold a cup of lemon juice for $1.25 and a cup of apple juice for $2.50. If Peter sold a total of 15
meriva

Answer:

You have to add them then divide by the number of cups

Step-by-step explanation:

6 0
3 years ago
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