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Irina18 [472]
3 years ago
12

Help me solve this proportionalequation

%20%5Cfrac%7B7%7D%7B3%7D%20" id="TexFormula1" title=" \frac{9 + x}{9} = \frac{7}{3} " alt=" \frac{9 + x}{9} = \frac{7}{3} " align="absmiddle" class="latex-formula">
​
Mathematics
1 answer:
Blizzard [7]3 years ago
5 0
Cross multiplication, 3(9+x) = 63
27+3x = 63
3x = 63-27 = 36
x=36/3=12
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Denise Robb's account statement shows a $210.94 unpaid balance. With a periodic rate of 1.85%, what is the finance charge? She h
Blizzard [7]

Answer:

A) 3.9 dollars

B) 126.38 dollars

Step-by-step explanation:

Given that Denise Robb's account statement shows a $210.94 unpaid balance. With a periodic rate of 1.85%

The finance charge = 1.85/100 × 210.94 = 3.9 dollars

If She had new purchases of $341.22. The new balance will be

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8 0
3 years ago
1. m∠QPR =<br><br> 2. m∠QTP =<br><br> 3. RP =<br> Show all the work
alex41 [277]

Answer:

1. 30°

2.90°

3. 12 units

Step-by-step explanation:

I can't believe there's nothing confirming that this is a parallelogram/a rhombus?! Assuming is awful, and I wish you could say you can't know for sure lol but for the sake of this answer, let's just call it a rhombus. (There was probably some context elsewhere that you didn't put over here, hopefully.)

1.

The reason I say this is: in a rhombus, the diagonals bisect the angles. This means that the diagonals split the angles they meet into two equal parts. That way, it would make sense. m∠QPR=m∠SPR=30°.

2.

If it is a rhombus, the diagonals are perpendicular to each other, so m∠QTP should be 90°.

3.

Diagnonals in a rhombus (and in any parallelogram) bisect each other, so PT=TR=6, and RP=PT+TR=12 units.

Sorry if this is all dreadfully wrong, and I hope I helped you!

7 0
2 years ago
A square plastic tarp has a perimeter of 68 meters. How long is each side of the tarp?
alina1380 [7]

Answer:

17 meters

Step-by-step explanation:

The perimeter is the addition of all sides. Since the perimeter is 68 meters and a square has 4 sides, we can divide 68 by 4 and we get 17.

7 0
2 years ago
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Rama09 [41]

Answer:

57.6

Step-by-step explanation:

6 0
3 years ago
(8 pts)
Elan Coil [88]

Answer:

{x,y,z} = {-22/13,29/13,6/13} 

7 0
2 years ago
Read 2 more answers
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