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4 years ago

9

A store offers a discount of 20 ℅to customers who spend more than $100.If a customer's total bill was $450,what will the custome

r actually pay?

1 answer:

kotegsom [21]4 years ago

5 0

Answer:

$360

Step-by-step explanation:

This is because 20% of $450 is $90. You subtract the $90 from $450 and you get your answer!

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For 3x2 - 4x+ 1, match the following:

Usimov [2.4K]

Constant: 1

Degree: 2

Coefficient : 3 and -4

Algebraic expression: $3x^2-4x + 1$

Variable : x

<em><u>Solution:</u></em>

<em><u>Given expression is:</u></em>

$3x^2-4x + 1$

We have to find the constant, degree, coefficient , algebraic expression and varibale

<h3><u>Constant:</u></h3>

In Algebra, a constant is a number on its own, or sometimes a letter such as a, b or c to stand for a fixed number like 1, 2

In the given expression, constant is 1

<h3><u>Degree:</u></h3>

The largest exponent the variable has in a polynomial with one variable

In the given expression, largest exponent is 2

Thus degree of polynomial is 2

<h3><u>Coefficient:</u></h3>

The coefficients are the numbers that multiply the variables or letters

In $3x^2-4x + 1$ , coefficients are 3 and -4

<h3><u>Algebraic expression:</u></h3>

An algebraic expression is a mathematical expression that consists of variables, numbers and operations.

Here the algebraic expression is:

$3x^2-4x + 1$

<h3><u>Variable:</u></h3>

The letters x, y, and z are common generic symbols used for variables.

Thus the variable in given expression is x

3 0

3 years ago

1O less than the quotient of a number c and 13

Verizon [17]

Answer:

c/13 - 10

Step-by-step explanation:

5 0

2 years ago

Ashley is the oldest of four siblings whose ages are consecutive even integers. If the sum of their ages is 100, find Ashley's a

jok3333 [9.3K]

Answer:

Ashleys age is 28.

Step-by-step explanation:

When finding numbers that are consecutive, I like to divide the sum in this case, 100 by the number of people or things, in this case, the 4 siblings. The sum is 100 and there are 4 of them so we divide them first.

100÷4=25 so our answer must be around there. The question states that the ages must be even. So the even numbers in the range of lets say 20-30 are 20, 22, 24, 26, 28 and 30. Closest four numbers to 25 are 22, 24, 26 and 28. We must have two numbers below 25 and two numbers above 25. So we will keep 22,24,26 and 28. If you add them together, then you'll get 100! Since we are looking for Ashley's age which is the oldest, her age will be 28 as 28 is the highest number out the four numbers (22,24,26,28)

Good Luck and hope this helped! <33

4 0

2 years ago

What is another way to write 42 + 63

satela [25.4K]

You could write this by going 63+42 or add 63 and 42
hope that's what you are looking for ;-)<span />

7 0

3 years ago

Read 2 more answers

Answer the questions by drawing on the coordinate plane below.

solniwko [45]

Coordinates of the given triangle ΔPQR P(1,-1), Q(3,-2), R(3,-4).

a) Let us discuss the rule for rotation of 90° clockwise about the origin.

If given coordinate is (h,k) is rotated 90° clockwise about the origin the position of rotated coordinate will be (k, -h).

x and y coordinates would switch their values and after switching x any values, the y value of the coordinates would reverse in sign.

So, the coordinates of rotated ΔPQR P(1,-1), Q(3,-2), R(3,-4) would become

P(1,-1) --> P'(-1,-1)

Q(3,-2) --> Q'( -2,-3)

R(3,-4) --> R'(-4,-3)

b) If given coordinate is (h,k), the coordinates after reflection across the x-axis would besome (h,-k). (Just change in the sign of y-coordinate).

So, the coordinates of rotated ΔPQR P(1,-1), Q(3,-2), R(3,-4) would become

P(1,-1) --> P"(1,1)

Q(3,-2) --> Q"( 3,2)

R(3,-4) --> R"(3,4)

6 0

3 years ago