Laura spent $48.00 which was 15% of her money. How much money did she have

Answers

Answer 1

Answer: to solve this we can make a proportion

48 x
--- = ----
15 100

then cross multiply and divide

45 times 100 = 4500/15=300

she had 300 dollars

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Find the measure of each interior angle of the regular 9-gon

Can some please help me I'm struggling with this a lot

Answers

D. the angles are alternate which means that they will add up to 180 so the answer is D

hope this helps :)

Inez wants to buy a skateboard but she does not know if she has enough money. The price of the skate board is $80 and the sales tax is 7% what will be the total cost of the skate board

Answers

so here is what I think you mabey need to add so the answer is 87$$ hope I helped you

If cot A = 1.96000 and the acute angle A has to be determined, which one of the following expressionswill give the seconds of the angle?

Answers

cot A = 1.96
tan A = 1 / cot A
tan A = 1 / 1.96
tan A = 0.510204082
A = tan^(-1) 0.510204082
A= 27.03086026°
A= 27° 0.03086026°
A= 27° 0.03086026° x (60' / 1°)
A= 27° 1.8516156'
A= 27° 1' 0.8516156'
A= 27° 1' 0.8516156' x (60" / 1')
A= 27° 1' 0.8516156 x 60"

Then the expression for the seconds is 0.8516156 x 60"

In Option A, we have (-0.00120)/(-0.00141) x 60" = 0.851063830 x 60"
In Option B, we have -0.00141/0.00120 x 60" = -1.175 x 60"
In Option C, we have 0.00806/0.01159 x 60" = 0.695427092 x 60"
In Option D, we have (-0.01159)/(-0.00806) x 60" = 1.437965261 x 60"

Answer: Option A: (-0.00120)/(-0.00141) x 60"

X-12y=-210 and x-6=90

Answers

Answer:

x = -30

y = -20

Step-by-step explanation:

x - 12y = 210..... (I)

x - 6y = 90..... (II)

Subtract equation (II) from (I)

- 12y - (-6y) = 210 - 90

-12y + 6y = 120

-6y = 120

Divide through by -6y

Therefore, y = -20

Substitute y = -20 in equation (II)

x -6 (-20) = 90

x + 120 = 90

x = 90 - 120

x = -30

Hope that helped

A kilogram of whole- wheat flour cost $6. what is the cost of 400 grams of the flour?

Answers

As you know, 1kq=1000g

To simplify the problem, we should get the amount of money 200g of flour will cost.

So we do 5/6 (5=amount of parts off 200g and 6=the amount of money) which equal to $1.2/200g

1.2*2=$2.4

Hence 400g=$2.4

Is 27 ft greater than 324 in

Answers

They are equal. There are 12 inches in 1 foot so you can divide 324 inches by 12 to make the units become feet instead of inches. 324 inches is 27 feet.

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