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Misha Larkins [42]
3 years ago
6

Evaluate and simplify if possible:

Mathematics
1 answer:
Yuki888 [10]3 years ago
3 0
\frac{2x(3y - 4z)}{3(5x + 4z)}   Plug in the given values
\frac{2(4)(3(-1) - 4(-3)}{3(5(4) + 4(-3)}   Multiply where needed
\frac{8(-3 + 12}{3(20 - 12)}   Add and subtract inside the parentheses
\frac{8(9)}{3(8)}   Multiply
\frac{72}{24}
3


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Use the number line. Enter the integer value that point D represents.
GenaCL600 [577]

Given:

A number line from -10 to 10 with 20 tick marks.

Point D is 1 tick mark to the left of 5.

To find:

The integer value that represents point D.

Solution:

A number line from -10 to 10 with 20 tick marks. It means, each mark represents the integer values from -10 to 10.

We know that, as we move towards left on a number line the value decreases and as we move towards right the value increases.

Point D is 1 tick mark to the left of 5. It means, point D represents the integer value which is 1 less than 5.

5-1=4

Therefore, point D represents the integer 4.

4 0
2 years ago
1. Addition
nexus9112 [7]

Answer:

1. Exponent

2. Multiplication

3. Subtraction

4. Square root

5. Addition

6. Division?

<em>Note: I am not very sure about my answer because of two things. 1. The proper order for operating is PEDMAS (Parentheses, Exponent, Multiplication, division, addition, and subtraction). There is no Square root in that operation so I will consider it in the middle. 2. There is no division operation in this problem.</em>

4 0
3 years ago
Read 2 more answers
Write each equation in standard form using integers? <br><br> y = 3x + 1<br><br> y = 4x - 7
Maru [420]

Answer:

The standard form of y = 3 x + 1 is         -3x + y = 1 .

The standard form of y  = 4x - 7 is         -4x + y = -7.

Step-by-step explanation:

Here the given equation are:

y = 3 x + 1

and y  = 4x - 7

The above equations are of the form:  y = m x + C

Now, the STANDARD FORM of the equation is Ax + By  = C

<u>Consider equation 1: </u>

y = 3 x + 1

or, y - 3x  = 1

or. -3x + y = 1

⇒ The equation  -3x + y = 1  is in STANDARD FORM.

<u>Consider equation 2: </u>

y = 4 x - 7

or, y - 4x  = -7

or. -4x + y = -7

⇒ The equation -4x + y = -7 is in STANDARD FORM.

3 0
3 years ago
Please help!! markup and markdown word problems.
IRISSAK [1]

Answer:

Step-by-step explanation:

1. A boat is marked up 20% on the original price. The original price was $50. What is the sale price of the boat before sales tax?

$50(1+0.20) = <u>$60</u>

                                                                                 

2. Fred buys a video game disk for $4. There was a discount of 20%. What is the sales price?

$4(1-0.2) = <u>$3.20</u>

3. A painting is on sale at 50% off. The sale price is $320. What was the original price?

X*(1-0.5) = $320

X = $320/0.5

X = $640

8 0
2 years ago
Wendy did a survey to answer the following question: What is the average math score of grade 6 students? The mean math score was
melomori [17]

Answer:

IT WOULD HAVE TO BE 8.5

Step-by-step explanation:

AVERAGE IS JUST ANOTHER NUMBER FOR MEAN.

8.5+8.5=17

17/2=8.5

8.5+8.5+8.5=25.5

25.5/3=8.5

7 0
3 years ago
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