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kolezko [41]
3 years ago
9

4times (6-4)times 3+(7+3)

Mathematics
1 answer:
user100 [1]3 years ago
4 0

Answer:

156

Step-by-step explanation:

6 x (6-4) x 3 + (7+3)

6 x (2) x 3 + (10)

6 x (2) x 13

12 x 13

156

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Solving systems equations by elimination
pishuonlain [190]
I won't answer them all for you (don't want to cheat - need to learn something).
But for the first one given:

<span>-2x-9y=-25
-4x-9y=-23

you set up either x or y (which ever one you want to eliminate) so that one of them cancels.
So this one is easy - you just have to multiply an entire row by negative (doesn't matter which one) - so that the y's will be + and - 

Since they're both 9 and they're subracting NOW - you can eliminate the y value. Now add/subtract the x's. So it'd be -2 or 2 depending on how you eliminated y. Then add the number outside of the = sign. Now just solve for x. After that plug in whatever you got for x into both of the rows. Then find the y value.

Hopefully this wasn't confusing -- reply if it is and I will try to simplify. I can give you contact if you need help with the rest 

Good luck!</span>
3 0
2 years ago
6
Nady [450]

Answer:

$200

y=25x+50

Step-by-step explanation:

y=25(6)+50

y=150+50

y=200

5 0
3 years ago
Read 2 more answers
Each square on Olivia's chessboard is 11 square centimeters.A chessboard has 8 squares on each sid.To the nearest tenth,what is
stellarik [79]
First, find the length of one side of a square:
Area = side²
11 = s²
s = √(11) cm

Since there are 8 squares on each side, multiply the length of one square by 8 to get the length of 8 squares.
√(11) * 8 = 8√(11) ≈16.5 cm

Hope this helps!
5 0
3 years ago
Here is a histogram showing
STatiana [176]

Answer:

84.3%

Step-by-step explanation:

You first find the frequency. You do this by multiplying the frequency density by the class length.

6 0
2 years ago
Read 2 more answers
Determine whether each point lies on the graph of the equation.
sladkih [1.3K]
Points 2,2
2=square root of 6-2
2=square root of 4
2=2
Yes point lies on graph

Points 6,0
0=square root of 6-6
0=0
Yes point lies on graph
3 0
2 years ago
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