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avanturin [10]
3 years ago
12

For one geometry test, Sara correctly answered 6 questions. These correct answers gave him a percent score of 20%. In total, how

many questions were on this geometry test.
Mathematics
1 answer:
yaroslaw [1]3 years ago
3 0

Answer:

30 questions

Step-by-step explanation:

6 questions= 20%

6/20=x/100

6*100/20=x

6*5=x

x=30

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If a straight line y = mx + c passes through the intersecting point of 3x - y = 8 and x+ 2y = 5 which is perpendicular to the li
Sindrei [870]

Answer:

Point of intersection:

3x - y = 8 -  -  - (a) \\ x + 2y = 5 -  -  - (b)

2 × equation(b) + equation (a):

7x = 21 \\ x = 3 \\  \\ y = 3x - 8 \\ y = 1

Point of intersection = (3, 1)

Perpendicular line:

3x + 6y - 11 = 0 \\ 6y =  - 3x + 11 \\ y =  -  \frac{1}{2} x +  \frac{11}{6}

General equation of line:

y = mx + c \\ 1 = (2 \times 3) + c \\ c =  - 5

<u>Value</u><u> </u><u>of</u><u> </u><u>m</u><u>:</u>

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8 0
3 years ago
Question is in the picture-
Lelu [443]

Answer:

?

Step-by-step explanation:

3 0
3 years ago
ANSWER IT!!! I ONLY HAVE MINUTES ​
Sergeeva-Olga [200]

Answer:

D

Step-by-step explanation:

5 + n is the sum of 5 and a number

amd then "less than or equal to -7" represents the no more than -7

8 0
3 years ago
Read 2 more answers
Solve the inequality. 9x − 4 &gt; 95
SOVA2 [1]

Answer:Rearrange the equation by subtracting what is to the right of the greater equal sign from both sides of the inequality :

                    9*x-4-(95)≥0

Step by step solution :

STEP

1

:

Pulling out like terms

1.1     Pull out like factors :

  9x - 99  =   9 • (x - 11)

Equation at the end of step

1

:

STEP

2

:

2.1    Divide both sides by  9

Solve Basic Inequality :

2.2      Add  11  to both sides

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Inequality Plot :

2.3      Inequality plot for

        9.000 X  - 99.000  ≥  0

 

One solution was found :

x ≥ 11

Step-by-step explanation:

3 0
3 years ago
Please Help!! George tells you that when variables are in the denominator, the equation becomes unsolvable. "There is a value fo
luda_lava [24]
For the answer to the question above, I'll provide a solution to my answer below.
(4 / 5) + (3 / x) = (1/2) 

<span>x cannot equal 0 </span>

<span>(4x + 15) / 5x = 1/2 </span>
<span>2(4x + 15) = 5x </span>
<span>8x + 30 = 5x </span>
<span>3x = -30 </span>
<span>x = -10
</span>I hope my answer helped you. Feel free to ask more questions. Have a nice day!
5 0
3 years ago
Read 2 more answers
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