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topjm [15]
2 years ago
8

Is this a proportional equation? Explain your answer. y=-3/5x

Mathematics
1 answer:
tatuchka [14]2 years ago
5 0
I dont even know , I’m confused
You might be interested in
Evaluate: x(y – z) for x = 3, y = 9, and z = 2<br> O 33<br> O 45<br> O-21<br> O 21
ad-work [718]

Answer:

21

Step-by-step explanation:

Hi there!

We are given the expression x(y-z), and we want to evaluate it if x=3, y=9, and z=2

As we're given the values of the variables, we can substitute those values into the expression to find out what the value of the expression is.

So substitute 3 as x, 9 as y, and 2 as z in the expression above

x(y-z)

3(9-2)

Now we must follow the order of operations; start by subtracting 2 from 9 (do the stuff inside the parentheses first)

3(7)

Now multiply 3 and 7 together

<u>21</u>

Hope this helps!

3 0
3 years ago
There is $48 to be divided among 3 people. the ratio of dividing is 3:2:1. How much does the person who receives the most will g
hodyreva [135]

Answer:

The person who receives the most will get $24

Step-by-step explanation:

Let

x ----> amount received by the first person

y ----> amount received by the second person

z ----> amount received by the third person

we know that

x+y+z=48 ----> equation A

x:y:z=3:2:1

so

\frac{x}{y}=\frac{3}{2}

x=1.5y ----> equation B

\frac{y}{z}=\frac{2}{1}

z=0.5y ----> equation C

substitute equation B and equation C in equation A

1.5y+y+0.5y=48

solve for y

3y=48\\y=\$16

Find the value of x

x=1.5(16)=\$24

Find the value of z

z=0.5(16)=\$8

therefore

The person who receives the most will get $24

7 0
3 years ago
Read 2 more answers
A square has a side length 9 cm. What is its area? A square has an area of 9 cm2. What is its side length?
Kay [80]

Answer:

Area = 81; Side Length = 3

Step-by-step explanation:

The area of a square is the side lenght squared, and 9² is 81.

The side lengh can be found by taking the square root of the area. √9 = 3

5 0
2 years ago
How to find the area of a polygon
ipn [44]
The rectangle is 7 x 4 so the area is 28 sq cm
The triangle has a base of 4 and a height of 3.
The formula is A = 1/2 * b*h
You have 2 triangles so:
2(1/2)*4*3= 12 sq cm
Add together:
28 + 12= 40 sq cm
6 0
3 years ago
What is the slope of the line which passes through (−2, 0) and (0, 4)?
avanturin [10]

Answer:

slope = 2

Step-by-step explanation:

Slope of a line given two points can be found using slope formula:

\frac{(y_{2}-y_{1})}{(x_{2}-x_{1})}

Given two points (-2, 0) and (0, 4):

x_{1}=-2 \\x_{2}=0\\y_{1}=0\\y_{2}=4

Plug them into the equation:

\frac{(4-0)}{(0--2)}=\frac{4}{2}=2

3 0
3 years ago
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