A rectangle has a total perimeter of 108cm. The length is 5 times the width. The dimensions would be 45cm x 9cm, right?

Answers

Answer 1

Answer: NO, the dimensions would be (rounded) 23.25 x 4.65

Answer 2

Answer: First lets represent
P=perimeter
x=width
5x=length
lxw=p
5x(x)=108
5x^2=108
x^2=21.6
x=4.65cm

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Liam is setting up folding chairs for a meeting. If he arranges the chairs in 9 rows of the same length, he has 3 chairs left over. If he arranges the chairs in 7 rows of that same length, he has 19 left over. How many chairs does Liam have?

Answers

He has 75 chairs
The x represents the amount of chairs in each row while the number attached to the exponent shows how many rows he was able to set up with the extra chairs
9x + 3 = 7x + 19
-7x -3 -7x -3
-----------------------
2x=16 x=8
2 2
Plug 8 back into the equation and you see that it equals 75 on both sides. So that means Liam has 75 chairs to set up

75 chairs! I hope this helps;)

Simplify the expression:

5(1 + 3g)

Answers

5(1+3g)
5(1) + 5 (3g)
5 + 15g

5(1) + 5(3g)= 5 + 15g
5÷15 = 15÷15g
g=.3333 or 1/3

What is the solution set of the given equation?
4y-6y+9y=-2

Answers

Answer:

4y-6y+9y=-2

-2y+9y=-2

7y=-2

therefore divide 7 on both sides

7y/7=-2/7

y=-2/7

y=-0.2857

4 sweets cost 28 p altogether how much do 7 sweets cost?

Answers

4 sweets cost 28p altogether

28÷4=7p for each sweet

If each sweet costs 7p, then 7 sweets would be multiplied by 7

7×7p=49p

7 sweets cost 49p

divide 28 by 4 then u get 7. then u multiply 7 sweets by 7 and you get 49.
so the answer is one 1 sweet costs 7$ = 7 sweets cost 49$

Pls help :) solve. b-^4 =1/81 b

Answers

$b^(-4) =(1)/(81)\n\nb^(-4) =(1)/(b^4)\n\n(1)/(b^4)=(1)/(81)\n\nb^4 = 81\n\nb^4 = 3^4\n\nb^4 = (-3)^4\n\n\boxed{\bf{b = 3}}\n\n\boxed{\bf{b=-3}}$

What fractions are equivalent to 6/15

Answers

$(6)/(15)= (6/3)/(15/3)= (2)/(5)$

$(6)/(15)=(6\cdot2)/(15\cdot2)= (12)/(30)$

$(6)/(15)=(6/100)/(15/100)= (600)/(1500)$

To obtain an equivalent fraction, you have to multiply or simplify that fraction.

one fraction is 2/5.
another one is 12/30.
HOPE I HELPED!!!

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