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vazorg [7]
3 years ago
15

EVAN

Mathematics
1 answer:
CaHeK987 [17]3 years ago
3 0

Answer:

n = -8

Step-by-step explanation:

Given the expression

(-2y-3) + (-6y-5) =  (ny -8),

Expanding the LHS

-2y-3 - 6y -5 = ny - 8

-2y-6y-3-5 = ny - 8

-8y - 8 = ny - 8

Compare both sides

-8y = ny

-8 = n

Swap

n = -8

Hence the value of n is -8

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What is 300+3x40-25x4=?
anyanavicka [17]

Answer:

320

Step-by-step explanation:

300+3x40=120-25x4

300+120-25x4=100

320

4 0
3 years ago
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2 lb, 891g, 1 kg, 0.02 T greatest to least
stealth61 [152]

To arrange in descending order or greatest to least, we will first convert all the values in same unit.

Lets convert all the values in kg

1 lb = 0.45 kg

2 lb = 2\times0.45=0.9 kg

1 g = 0.001 kg

891 g = 891\times0.001=0.891 kg

1 T = 907.185 kg

0.02 T = 0.02\times907.185=18.14 kg

Hence all values in kg becomes = 0.90 kg , 0.891 kg , 1 kg , 18.14 kg

So in descending order the values become

0.02T, 1 kg, 2 lb, 891 g

8 0
3 years ago
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Gretta made five withdrawals of $20 each from her checking account
frozen [14]

Answer:

+160

Step-by-step explanation:

Her withdraws added up is 100 which is taking away money, because withdraw means you take your money out of your checking account.

Deposits means you add more money into your account, so added up

-100 + 260 = 160

8 0
3 years ago
What is the mean of the data set?
mestny [16]

Ok, im guessing that this is all about mean

First mean is just adding everything up for example:

5+5+10+10+5

so the answer is 35, but that isnt completely finished you need to divide 35 by 5, or how many numbers were added then you get the mean for my example the mean is 7

------------------------------------------------

ACTUAL PROBLEMS

1. 10+15+14+8+18+11+12+12+10+10+17+16 = 153

153/12= 12.75

2. 16.4+17.1+17.4+18.1= 69 B)

69/4=17.25

3.  11+15+19+17+23+20+17+13+18+21=174

174/11=15.8181818182

4. 21+25+36+16+32= 130

130/5=26

a

6 0
3 years ago
Help me pls i'm on a timer!!!!
e-lub [12.9K]

Answer:

C, 360

Step-by-step explanation:

Interior angle sums can be found using the equation (N=-2)*180, where N equals the number of sides of the polygon.

4 0
3 years ago
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