Leon left a 15% tip for a meal. the total cost of the meal including the tip was $41.40. What was the cost the meal before the tip was added?

Answers

Answer 1

Answer: % * whole = part
0.15 * 41.40 = 6.21
6.21 is the tip.
41.40 - 6.21 = 35.19
The cost is $35.19

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23. What is the value of a? The diagram is not to scale.

Answers

I may give the answer, but not the proper calculation so aware.

So we all know a triangle have 180 degree.

We have 180 - (2a + 6) - a = 90

So abandon the 6 and 90 at this point, we'll have 2a and a

180 - 90 - 6 = 84

84 / 3 = 28.

So a = 28, 2a + 6 = 62

90 + 28 + 62 = 180, which makes the answer valid.

Solve by substitution
3x y=-9
x-2y=-10

Answers

: 3x + y = 9
y = 9 - 3x

x - 2y = 10
y = (x - 10)/2

2(9 - 3x) = x - 10
18 - 6x = x - 10
7x = 28
x = 4

y = 9 - 3(4)
y = 9 - 12
y = - 3

Answer: x = 4, y = - 3

Proof—2nd equation:
4 - 2(- 3) = 10
4 + 6 = 10

Hope this helps :)

In the diagram, the measure of angle 8 is 124°, and the measure of angle 2 is 84°. What is the measure of angle 7? 56° 84° 96° 124°

Answers

Answer: 56 degrees

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Explanation:

The information about angle 2 is unnecessary info that your teacher likely put in there as a distraction. All we need is angle 8, which is 124 degrees. Angle 7 adds to this to form a 180 degree straight angle.

(angle 7) + (angle 8) = 180

(angle 7) + 124 = 180

angle 7 = 180 - 124

angle 7 = 56 degrees

Answer:

The measure of angle 7 is 56°.

Step-by-step explanation:

here, angle 8 = 124°

now, angle 8+ angle 7=180° (as the sum of linear pair is 180°)

or, 124°+angle 7=180°

or, angle 7=180°-124°

Therefore, tge measure of angle 7 is 56°.

Hope it helps.

Which is greater -6 or -3

Answers

-3 is greater than -6

I don't understand help??? Asap!

Answers

Your answer is C) Translation

The equation of line k is y=-1/5x -1/8. What is the equation of the line that is perpendicular to line k and passes through (0,0)?

Answers

y=-1/5 x-1/8
Gradient, m= -1/5
A line perpendicular will be;
m=15
y=mx+c
Replacing for x and y;
0=5(0)+c
c=0
y=5x

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