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dsp73
3 years ago
11

angle A is a compliment of angle b and m angle b = (6-5x) degrees and m angle a =(7-2x)degrees find m angle a

Mathematics
1 answer:
Anuta_ua [19.1K]3 years ago
7 0

Answer:

61

Step-by-step explanation:

A + B = 90

6 - 5x + 7 - 2x = 90

13 - 7x = 90

- 7x = 90 - 13

- 7x = 77

- x = 77 / 7

x = - 11

A: 6 - (5 * - 11) = 6 + 55 = 61

B: 7 - (2 * -11)  = 7 + 22 = 29

Together they equal 90 as they should.

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Based on a sample survey, a principal claims that 7 out of 10 students like math. If there are 1300 students, how many would you
horsena [70]

Answer:

390

Step-by-step explanation:

find the fraction of those that don't like math

10/10 - 7/10= 3/10

then do 3/10 x 1300 to get 390

5 0
3 years ago
A child walks 3/10 of a mile in 1/5 hour. At this rate, how far will the child walk in 1 hours ?
sertanlavr [38]

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4 0
3 years ago
Write the equation of a line where slope = 2 and (1,3) is on the line in slope intercept form
vazorg [7]
Y = 3x + 0 is what i got though check my math to be sure 
5 0
3 years ago
What is the area of the figure?
son4ous [18]
Yes. 95 is correct.
You have three congruent "indentations" in the right hand side. Thus each section must be 15/3 = 5 cm long.
The top rectangle will be 8*5 = 40 cm^2
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The middle area will be 5(8-5) = 5 * 3 = 15 cm^2
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5 0
3 years ago
Write an equation for the line perpendicular to the line y= -2/3+7 which passes through the point (-5,6)
zysi [14]
Y = -2/3x + 7.....the slope here is -2/3. A perpendicular line will have a negative reciprocal slope. All tht means is take the original slope, flip it, and change the sign. So we take -2/3....flip it making it -3/2.....change the sign making it 3/2. So ur perpendicular line will have a slope of 3/2.

y = mx + b
slope(m) = 3/2
(-5,6)....x = -5 and y = 6
now sub and find b, the y int
6 = 3/2(-5) + b
6 = -15/2 + b
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12/2 + 15/2 = b
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so ur perpendicular equation is : y = 3/2x + 27/2 <==
8 0
2 years ago
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