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Roman55 [17]
3 years ago
5

Linda goes out with her friends. If the bill is 38.50 and they want to leave a 20% tip, how much should the tip be?

Mathematics
1 answer:
Goryan [66]3 years ago
8 0

Answer:

7.70

Step-by-step explanation:

100%-> 38.50

20% ->7.70

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What is the solution for the system of equations? y=−x+4 y= x−2
MissTica

Answer:

(3, 1 )

Step-by-step explanation:

Given the 2 equations

y = - x + 4 → (1)

y = x - 2 → (2)

Substitute y = x - 2 into (1)

x - 2 = - x + 4 ( add x to both sides )

2x - 2 = 4 ( add 2 to both sides )

2x = 6 ( divide both sides by 2 )

x = 3

Substitute x = 3 into either of the 2 equations and solve for y

Substituting into (2)

y = 3 - 2 = 1

solution is (3, 1 )

6 0
3 years ago
Can 12 cm 12 cm and 28 cm form a triangle
erastova [34]
Using the Theorem of Pythagoras (a² + b² = c²)

Put in the values:

12² + 12² = 28²
Is it correct? (solve)

Nope! Because 12² + 12² = 288, and the square root of 288 is about 17, not 28.

The answer is no, 12cm, 12cm, 28cm cannot form a triangle.

Hopefully this helps! If you have any more questions or don't understand, feel free to DM me, and I'll get back to you ASAP! :)
3 0
3 years ago
A rock is dropped from the top of a building and hits the ground at a velocity of
soldier1979 [14.2K]

The height of the building comes to be 81 feet.

Initial velocity u= 0 feet/sec

Final velocity v= 72 feet/sec

The acceleration due to gravity g =32ft /sec²

Height of the building h= suppose h

<h3>What is the equation of motion?</h3>

The equation of a motion is:

v^{2} =u^{2} +2gh

Where u and v are the initial and final velocities.

72^{2} =0+2*32*h\\144 = 64h\\h=81

So, the height of the building = 81 feet.

Therefore, the height of the building comes to be 81 feet.

To get more about motion visit:

brainly.com/question/453639

8 0
3 years ago
Read 2 more answers
A cylinder has a volume 1200 cubic inches and radius 5 inches. What is the height of the cone to the nearest tenth inch
mihalych1998 [28]

Answer: 15.3 in

Step-by-step explanation:

First, the formula for the volume is: V=\pi r^2h

If you solve for h,

h=\frac{V}{\pi r^2}

h=\frac{1200in^3}{(3.14)(5in)^2}

h=15.3in

3 0
3 years ago
Draw a venn diagram to show the relation between the sets of real numbers, rational number and irrational numbers.​
Rufina [12.5K]

Answer:

The image is not clear but get the idea

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