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yan [13]
3 years ago
9

Helppp pleaseeeeeeeee

Mathematics
1 answer:
lisov135 [29]3 years ago
6 0

Answer:

2n - 7 = 3n - 3

Step-by-step explanation:

Just count the n's and the (-1)'s

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If LM = 20 cm, and PQ = 16 cm, what is the length of RM, in centimeters?
LuckyWell [14K]

Answer:

RM = 12 cm

Step-by-step explanation:

a^{2} + b^{2} = c^{2}

Assuming 20 is the hypotenuse cus there is no picture:

a^{2} + 16^{2} = 20^{2}

a^{2} +256 = 400

a^{2} = 144

a=144

If It's not the hypotenuse:

16^{2}+ 20^{2} =c^{2}

256+400 =c^{2}

656=c^{2}

c = 25.61249695

But I find it unlikely that 20 wasn't the hypotenuse so ignore that unless it applies.

Hope this helped. :0)

5 0
2 years ago
Maddie buys 3 sodas for $2 each. she pays with cash and receives $4 in change. write an equation that can be used to find d, the
Ierofanga [76]
3×2=6+4=d the 3×2 is how much the cost is and 6+4 is 10 so she paid 10 dollars
3 0
3 years ago
How do you know weather the quotient of two integers will be a positive number
jeka57 [31]
If the two integers are both the same sign (both positive or both negative), then the quotient will be positive.
5 0
3 years ago
How many planes are shown in the figure? <br><br><br><br> 4<br><br> 5<br><br> 6<br><br> 7
Natalija [7]
The answer is 5 planes - we count one for every side.
Hope this helped! Rate brainliest if you want. :)
Have a nice day!

7 0
3 years ago
Read 2 more answers
Simplify the following expression. (4x2 + 8x + 15) + (x2 − x − 27) − (x + 5)(x − 7)
mario62 [17]

Answer:

X^2+ 2x+35

Step-by-step explanation:

Use pemdas. Multiply the parentheses. Multiply. Collect like terms. Remove the parentheses.

3 0
3 years ago
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