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borishaifa [10]
4 years ago
8

When Javier and his father went to dinner, the bill was $34. If they tipped the waiter 20%, how much did they spend in total?

Mathematics
2 answers:
ss7ja [257]4 years ago
5 0
I believe the answer is $40.8
Kamila [148]4 years ago
4 0

Answer:

Not sure if this is right, but I got $40.8.

Step-by-step explanation:

I first turned 20% into a decimal. (0.20).

Then I multiplied 0.20 and 34 which is 6.8.

I then added 34 since it’s the original cost to 6.8 since that’s the tip amount.

After that, you should get $40.8.

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Help meh I will give brainiest!! Answer as much as you know.
coldgirl [10]

Here i did this to. Hope it helps! It wont let me download it so I am just gonna put them on here.

Unit 7 Review Guided Notes Page

Question 1

Find the missing side length.

5*5=25+ 7*7=49= 74 so 8.6

Question 2

What is the area of the parallelogram?

18*50=900

Question 3

What is the perimeter of the figure?

If you break the object apart. 7+7+1+1=16

5+5+3+3=16

16+16=32m

Question 4

What are the solutions to the equation?

x^2 – 22 = 14

I found that 6*6=36 – 22=14

I tried a few numbers .

Question 5

What is the area of the figure?

If you break the figure apart. 3*2=6

2*6=12

6+12=18cm

Question 6

What is the area of the trapezoid?

11+3=14*9=126*2=252

Question 7

Hint: 1 Revolution equals the Circumference!

How far does a wheel travel in 2 revolutions if it has a radius of 45 cm?

2*3.14=6.28*45=282.6*2=565.2

Question 8

The diameter of the larger circle is 11 cm.  The diameter of the smaller circle is 7 cm.  What is the area approximate area of the shaded region?

For the smaller one – 7/2= 3.5 *3.5*3.14=38.46

For the bigger one- 5.5*5.5*3.14=94.98

94.98-38.46=56.52

Question 9

What is the approximate area of a circular garden that has a diameter of 12 feet?

A= Pi*r2. 3.14*6^2 =113

6*6=36*3.14= 113.04

Question 10

A 17-foot pole is leaning against a wall.  The bottom of the pole is 8 feet away from the bottom of the wall.  Approximately how high up the wall does the top of the pole reach?

(a^2+b^2=c^2) Its 15 ft

4 0
3 years ago
Write an equation of the line with a slope of −1/2 and a y-intercept of 1.
masha68 [24]

Answer:

y=-1/2x+1

Step-by-step explanation:

y=mx+b

5 0
3 years ago
Please help. Which function represents an initial population that increases 22% per year where A represent the intial value and
jeyben [28]
C would be correct
6 0
3 years ago
Vivi is a drummer for a band. She burns 756 calories while drumming for 3hours. She burns the same number of calories per hour.
lions [1.4K]

This question uses the concept of the division.

Vivi, the band drummer, burns 765 calories in 3 hours. And she burns these calories at the same rate. Which means she burns the same amount of calories per hour.

Thus, the set up equation for this question will be:

Energy burnt in 3 hours=756 calories

Therefore, Energy burnt in 1 hour = \frac{756}{3} =252 Calories.

Thus, the required answer is that Vivi burns 252 Calories of energy per hour while drumming.

7 0
3 years ago
Explain answer ! <br><br> Will give brainlst
Ne4ueva [31]

Answer:

x = 4, y = 2

Step-by-step explanation:

Start by multiplying the first equation by 2:

2x + 2y = 12 --> 4x + 4y = 24

Subtract the second from the first:

   4x + 4y = 24

-   5x + 4y = 28

4x - 5x = -x

4y = 4y = 0

24 - 28 = -4

so you end with -x + 0 = -4

Solve for x to get x = 4

Plug x = 4 back into 2x + 2y = 12 to find y.

2(4) + 2y = 12

8 + 2y = 12

2y = 4

y = 2

5 0
3 years ago
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