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Naily [24]
3 years ago
7

Which expression is equivalent to 30(1/2x - 2) plus 40(3/4y-4)

Mathematics
1 answer:
nirvana33 [79]3 years ago
7 0

Answer:

225

Step-by-step explanation:

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elise bought a video game for $65.00. if the store charged 150% of what it paid for the game, how much is the store’s profit?
OLEGan [10]

Answer:

$21.67 profit

Step-by-step explanation:

65/1.5 = 43.33 bought for

65.00-43.33 = 21.67 profit

7 0
3 years ago
Read 2 more answers
The product of two consecutive integers is 30. What are the integers?
Nadusha1986 [10]

a negative times a negative is a positive answer so both 5 *6 and -5 *-6 = 30

the answer is C

3 0
3 years ago
Read 2 more answers
Given: B = 7 −3 5 −1 C = 1 −1 13 −5 Solve the equation: 2X + B = C X =
zhuklara [117]

Answer:

-3/4 and 1/-2 is the correct answer.

Step-by-step explanation:

8 0
3 years ago
I don’t understand :(
viktelen [127]

Answer:

The quotient when x^3-4x^2-8x+8 is divided by x+2 is x^2-6x+4 with no remainder, so x+2 is a factor of p(x).

Step-by-step explanation:

As the question suggests, there are two ways to solve this problem: long division (which can always be used to divide polynomials), and synthetic division (which can only be used when you are dividing by something of the form (x-a). In this case, we may use synthetic division, since x+2 is equal to x-(-2). I will use synthetic division here as it is slightly faster than long division.

The -2 on the left represents that we are dividing by x-(-2), and the rest of the numbers in the top row are the coefficients of p(x): 1, -4, -8, and 8.

The first step in synthetic division is to being down the leading coefficient of the polynomial: in this case, the 1 (as indicated in red). Now, we multiply the 1 by -2. We get -2, which we place directly below the -4.

Next, we add directly down the column, (-4 + (-2) is equal to -6), and this answer is placed in the box below. We can continue this process, getting the coefficients 1, -6, 4, and 0 in the bottom row.

This is the answer: the quotient is x^2-6x+4, and the remainder is zero (which indicates that x+2 is a factor of p(x)).

--

Edit: long division

We may also solve this problem using long division (see the second image). The first step is to look at the leading coefficients: since x \times x^2 is equal to x^3, the first term in the quotient will be x^2. Since x^2 \times (x+2) is equal to x^3+2x^2, we must now subtract that from x^3-4x^2-8x+8.

We repeat the same process, as shown in the image. Since we eventually get to zero, the remainder is zero, and the polynomial at the top (x^2-6x+4) is the quotient.

<em>I know this might be difficult to follow, so please comment if you have any questions.</em>

4 0
3 years ago
PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU B
BabaBlast [244]

Answer:

328.5 cm

Step-by-step explanation:

Volume= L x W x H

10 x 4.5 x 7.3= 328.5

:))

6 0
3 years ago
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