MATHEMATICS MIDDLE SCHOOL

The Stevenson family’s bill at a restaurant came to $39.50, and they left the waiter an 18% tip. How much did the Stevenson family pay, including the tip? A) $46.61
B) $48.42
C) $7.11
D) $71.10

Answers

Answer 1
Answer: C: $7.11 because 18% x 39.50 is $7.11
Answer 2
Answer: A, $7.11 is the tip. I am doing homework like this:)

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No,It Won't. Because It Increases Right, Do You Get It?

When 4((0.5 x + 2.5 y minus 0.7 x minus 1.3 y + 4)) is simplified, what is the resulting expression?

Answers

Answer:

-0.8x + 4.8y + 16          

Step-by-step explanation:

We have to simplify the given expression:

4(0.5x + 2.5y-0.7x-1.3y+4)

First we group all the like terms of x.

4((0.5x-0.7x) + 2.5y-1.3y+4))\n=4(-0.2x+ 2.5y-1.3y+4)

Next we group all the like terms of y.

4(-0.2x+ (2.5y-1.3y)+4)\n=4(-0.2x+1.2y+4)

Now, we use distributive property for the multiplication,

4(-0.2x+1.2y+4)\n=(4* -0.2x) + (4* 1.2y) + (4* 4)\n=-0.8x + 4.8y + 16

is the required simplified expression.

Answer:

-0.8x + 4.8y + 16

Step-by-step explanation:

Which equation shows the inverse property of multiplication?4 + (-4) = 0
-8 + (-3) = -3 + (-8)
2 times one-half = 1
Eight-fifths + 0 = Eight-fifths

Answers

Answer:

The answer is -8+(-3)=-3+(-8)

Answer:

A

Step-by-step explanation:

Which ordered pair is the vertex of y= -|X+4|

Answers

y = -|x + 4|

The coordinates of vertex of that function is (x; 0).

-|x + 4| = 0

|x + 4| = 0 ⇔ x + 4 = 0 |-4

x = -4

Answer: (-4; 0)

Explain how you know that the values of the digit 5 in the numbers 150,000 and 100,500 are not the same.

Answers

Answer:

The place value of both the numbers are different so they are not same.

Step-by-step explanation:

To find : Explain how you know that the values of the digit 5 in the numbers 150,000 and 100,500 are not the same ?

Solution :            

The place value system is

Hundred Th.     Ten Th.     Thousand     Hundred     Tens    Ones

     1                        5                  0                0                0           0

     1                        0                  0                5                0           0

We have seen that,

In the numbers 150,000 the 5 digit is at ten thousand place.

In the numbers 100,500 the 5 digit is at hundred place.

As the place value of both the numbers are different so they are not same.
In the number 150,000 the number is in the ten thousandths place.

In the number 100,500 the number is in the hundredths place.

The data represent the ages of people working at a store.19, 27, 20, 26, 20, 24, 32, 23, 20, 19, 21

What is the first quartile of these ages?

A.
19

B.
21

C.
20

D.
26

Answers

A Q1 is the minimum Q2 is mode I think and Q3 is the max
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