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zhannawk [14.2K]
3 years ago
6

Solve the syetems of equations: 6x-20y=120 4x+20y=80

Mathematics
2 answers:
Marina86 [1]3 years ago
5 0
(20,0).......... :) I think
Len [333]3 years ago
4 0

Answer:

(x,y) = ( 20, 0)

Step-by-step explanation:

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Ms. Cruz has a tank with 11 fish. After buying two more, she has 2 less than triple the amount of fish Ms. Montesinos has. How m
exis [7]

Answer:

a) Write a let statement below to define your variable(s):

Let the number of fishes Ms. Montesinos has be represented by = f

b) Set up an equation using the variable you defined in (a):

The equation is :

3f - 2 = 13

c) Solve your equation & Check. How many fish does Ms. Montesinos have?

Ms. Montesinos has 5 fishes

Step-by-step explanation:

Ms. Cruz has a tank with 11 fish. After buying two more, she has 2 less than triple the amount of fish Ms. Montesinos has. How many fish does Ms. Montesinos have in her tank?

a) Write a let statement below to define your variable(s):

Let the number of fishes Ms. Montesinos has be represented by = f

b) Set up an equation using the variable you defined in (a):

We are told in the question:

Ms. Cruz has a tank with 11 fish. After buying two more, she has 2 less than triple the amount of fish Ms. Montesinos has.

Therefore,

3× f - 2 = 11 + 2

The equation is :

3f - 2 = 13

c) Solve your equation & Check. How many fish does Ms. Montesinos have?

Solving the above equation:

3f - 2 = 13

3f = 13 + 2

3f = 15

Divide both sides by 3

3f/3 = 15/3

f = 5

Hence, Ms. Montesinos has 5 fishes

4 0
3 years ago
Justify solution<br>-1/2(5x-8)=7<br>5x-8=-14<br>5x=-6<br>x=-6/5​
Leona [35]

Answer:

solution is -6/5 because:

-1/2(5x-8)=7

-5x+8/2=7

-5x+8=7*2

-5x+8=14

-5x=14-8

-5x=6

x=-6/5

5 0
3 years ago
2. y = 5x2 + 10x – 3
Mice21 [21]

Answer:

x= -7/10 or x= -0.7 , y= 7

Step-by-step explanation:

Find the x-intercept:                  Find the y-intercept:

y= 5×2+10x-3                                y= 5×2+10x-3  

0=10+10x-3                                    y= 5×2+10×0-3

0=7+10x                                         y= 7

-10x=7

x=-7/10

8 0
3 years ago
I need help on figuring out the two ways.
Ymorist [56]
I believe the diagonals would be perpendicular. So if it's on a graph/coordinate plane the slopes would be opposite. And all the sides would be the same length/2 sets are parallel/same slope
4 0
3 years ago
If you live in Dallas, then you live in Texas
viktelen [127]

Answer:

The <u>inverse </u>statement is given as follows;

If you do not live in Dallas, then you do not live in Texas

False

The <u>converse </u>statement is given as follows;

If you live in Texas then you live in Dallas

False

The <u>contrapositive</u> statement is given as follows;

If you do not live in Texas, then you do not live in Dallas

True

The <u>biconditional </u>statement is given as follows;

You live in Dallas, if and only if, you live in Texas

True

Step-by-step explanation:

5 0
3 years ago
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