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Oksanka [162]
4 years ago
11

Please help with this

Mathematics
1 answer:
lbvjy [14]4 years ago
8 0

Answer:

the answer is C

Step-by-step explanation: because i guessed

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3z+(-4)=-1 how would you find your answer to what is z?
Masja [62]

Answer:

z=1

Step-by-step explanation:

3z+(-4)=-1

Add 4 to each side

3z+(-4) +4=-1+4

3z = 3

Divide each side by 3

3z/3 = 3/3

z=1

5 0
3 years ago
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What is the lcm and hcf of 1/3 and 2/9
Blababa [14]

Step-by-step explanation:

1/1 , 3

3/1 , 3

1 , 1

HCF is 1

LCM is 3 × 1 =3

2/2 , 9

3/1 , 9

3/1 , 3

1 , 1

HCF is 1

LCM is 3 × 3 × 2= 18

6 0
3 years ago
What is 3x+5x+2 factorised for yr 10 gcse
marusya05 [52]

Factorising quadratic expressions

Multiply these brackets to remind yourself how to factorise.

<span><span>( x + 2 ) ( x + 5 ) = x2 + 7x + 10</span><span>( x + 2 ) ( x + 3 ) = x2 + 5x + 6</span><span>( x - 3 ) ( x - 5 ) = x 2 - 8x + 15</span><span>( x + 6 ) ( x - 5 ) = x2 + x - 30</span><span>( x - 6 ) ( x + 5 ) = x2 - x - 30</span></span>
5 0
3 years ago
Seventy concert tickets were sold for $550. each adult ticket cost $9 and each childrens ticket cost $5. find the number of adul
PilotLPTM [1.2K]

Answer:

Total tickets = 70

Total cost = $550

Adult's ticket = $9

Child's ticket = $5

Difference = 9 - 5 = $4

Assume all 70 are child's tickets

5 x 70 = 350

But the total cost was 550

550 - 350 = $200

The $200 must have come from Adult's tickets, which has a difference of $4.

200 ÷ 4 = 50

So there are 50 adult's tickets.

70 - 50 = 20

And there are 20 child's tickets.

Hope this helps - Itz.Jordan

5 0
2 years ago
The floor at a roller skating rink is 72.25 feet long and 51.5 feet wide how much longer is the rank than it is wide
Triss [41]
21.20 feet is the answer your looking for
8 0
4 years ago
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