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lyudmila [28]
3 years ago
14

7y-23 plus 23x-16 plus 8x -21 find x and Y show steps please

Mathematics
1 answer:
Solnce55 [7]3 years ago
6 0
7y - 23 + 23x -16 + 8x - 21  
31x + 7y - 60  
What is the original problem equal to? You can't go any further unless you know.
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Ginny divided the cake into 12 pieces. She gave 4 pieces to Sammy. What fraction of the cake did she have left?
In-s [12.5K]

Answer: 2/3 or 1/3

Step-by-step explanation: If we have a cake that has a total of 12 pieces, and we gave four to someone else we would have 8/12 pieces left. Now if we simplify then we would have 2/3 left.

Alternate explanation: Now if we just want to divide 4/12 then we would have 1/3.

I'm happy to help let me know if I'm wrong!

5 0
2 years ago
What is the answer ????
zlopas [31]
I think its c hope this helps sorry if it dont
7 0
3 years ago
If cos 0=2/3, what are the values of sin 0 and tan 0?
morpeh [17]

Answer:

Below

Step-by-step explanation:

● cos O = 2/3

We khow that:

● cos^2(O) + sin^2(O) =1

So : sin^2 (O)= 1-cos^2(O)

● sin^2(O) = 1 -(2/3)^2 = 1-4/9 = 9/9-4/9 = 5/9

● sin O = √(5)/3 or sin O = -√(5)/3

So we deduce that tan O will have two values since we don't khow the size of O.

■■■■■■■■■■■■■■■■■■■■■■■■■

●Tan (O) = sin(O)/cos(O)

● tan (O) = (√(5)/3)÷(2/3) or tan(O) = (-√(5)/3)÷(2/3)

● tan (O) = √(5)/2 or tan(O) = -√(5)/2

4 0
3 years ago
Simplify 8a-5b-(6a-9b)
pychu [463]

Answer:

<h2>2(a + 2b)</h2>

Step-by-step explanation:

8a - 5b - (6a - 9b)

When there is a (-) in front of an expression in parentheses, change the sign of each term in the expression.

8a - 5b - 6a + 9b

Collect like terms

2a + 4b

Factor out 2 from the expression

2(a + 2b)

Hope this helps...

Good luck on your assignment..

7 0
3 years ago
PLEASE HELP!!!!!!
Fofino [41]
It is 0.088 this is just for the 20 characters so dont read this fhehfhryhfrhuehhfuyrhuyhfhefheufrhfyer
4 0
3 years ago
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