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rjkz [21]
3 years ago
10

If 11,000 is 85% of what was in my bank account, how much did I originally have?

Mathematics
1 answer:
Mrrafil [7]3 years ago
6 0
You can set it up like a proportion:

\frac{11000}{0.85}    \frac{x}{1.00}

Cross multiply: 
11000*1 = 11000
11000/0.85 = 12,941.18

You had roughly $12,941.18 in your bank account.
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Find the slope of the line passing through the points (-7, 8) and (5.-7).
baherus [9]

Answer:

slope is 15/-12

Step-by-step explanation:

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8 0
3 years ago
If 10% of x is 20, what is 23% of x?<br> A. <br> 33<br> B. <br> 46<br> C. <br> 200<br> D. <br> 230
dusya [7]

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46

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Quadrilateral ABCD is similiar to quadrilateral EFGH. The lengths of the three longest sides in quadrilateral ABCD are 60 feet,
babunello [35]

Answer:

15 feet

Step-by-step explanation:

It is given that Quadrilateral ABCD is similar to Quadrilateral EFGH. This means that the corresponding sides of these two quadrilateral will be in the same proportion.

i.e.

Ratio of two corresponding sides would be the same. We are given longest three sides of ABCD and shortest two sides of EFGH. Let the 4th sides of ABCD i.e. the shortest side be x.

So, the ratio of the shortest sides of two quadrilaterals would be the same as the ratio of second shortest sides.

So,

x:6=30:12\\\\\frac{x}{6}=\frac{30}{12}\\\\ x=\frac{30}{12} \times 6\\\\ x = 15

So, the 4th side on quadrilateral ABCD would be 15 feet. None of the options match with the answer.

8 0
3 years ago
Which of the following functions is quadratic? f(x)=3(x-4)(x+3), f(x)=5^2, f(x)=2/x, f(x)=2x^3+3x^2-5
DENIUS [597]
In B 5^2 = 25. There is no x anywhere.
In C f(x) = 2/x is a function of a reciprocal, not a quadratic.
In D f(x) = 2x^3 + 3x^2 - 5 is a cubic. A cubic is not a quadratic. The highest power of a quadratic is x^2

That leaves A. When you expand the brackets, you get
3(x^2 + 3x- 4x - 12)
2(x^2 - x - 12) when you remove the brackets you get
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A<<<< answer.
8 0
3 years ago
100 points please help
Eva8 [605]
V= b x h = 5 x 18 = 90ft
6 0
4 years ago
Read 2 more answers
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