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grandymaker [24]
3 years ago
11

Kareem correctly answered 85% of the questions on his last math test. If hee missed 6 problems, how many questions were there on

the test?
Mathematics
1 answer:
Reil [10]3 years ago
6 0
15% = 6 problems
30% = 12 problems
45% = 24 problems
60%= 36 problems
75%= 48 problems
95% = 60 problems

15%/3% =5%   6/3 =2 problems

100%= 62 problems
There were 62 questions on the test,
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Q1: Identify the graph of the equation and write an equation of the translated or rotated graph in general form.
marin [14]

Answer:

C. hyperbola; 9x^2-25y^2-250y-850=0

Step-by-step explanation:

The given conic has equation:

9x^2-25y^2=225

Divide through by 225.

\frac{9x^2}{225}-\frac{25y^2}{225}=\frac{225}{225}

\frac{x^2}{25}-\frac{y^2}{9}=1

This is a hyperbola centered at the origin.

The hyperbola has been translated from the origin to (0,5).

The translated hyperbola will have equation;

\frac{(x-0)^2}{25}-\frac{(y-5)^2}{9}=1

Multiply through by 225.

9(x-0)^2-25(y-5)^2=225

Expand

9x^2-25(y^2-10y+25)=225

9x^2-25y^2+250y-625=225

Rewrite in general form;

9x^2-25y^2+250y-625-225=0

9x^2-25y^2+250y-850=0

3 0
3 years ago
Shade the grid to represent the ratio 9/25. Then find a percent equivalent to the given ratio.
anzhelika [568]
Answers and workings in the attachment below.

3 0
3 years ago
Order these numbers from least to greatest. −270 , 16310 , −503 , −16.5
pychu [463]
-503,-270,-16.5,16310
8 0
3 years ago
Someone please help me!!! I’m stuck and need help!
denpristay [2]

Answer:

12

Step-by-step explanation:

These triangles are similar using the AA theroem. This means there sides are in corresponding proportion.

Side AR and Side TE are corresponding. Use this proportion.

\frac{6}{8}

This side the triangle SAR side lengths are 3/4 of side lengths of triangle SET.

We know that RS+ST=21

And that RS=3/4(ST).

\frac{3}{4} x + x = 21

1.75x = 21

x=12.

Side ST is 12

6 0
3 years ago
-2(x+1)=-3 what does x equal<br> Using distributive property
Luda [366]

Answer:

X=1/2

Step-by-step explanation:

-2x1/2=-1

-2x1=-2

-1+-2=-3

4 0
3 years ago
Read 2 more answers
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