All categories

2 years ago

The sum of x and 3 times y is 5. The difference of x and y is 5. Write two equations and graph to find the value of y.

Mathematics

1 answer:

kupik [55]2 years ago

5 0

Answer:

for the first one, x + 3 * y = 5

and the second equation, x - y = 5

Step-by-step explanation:

the sum of two numbers means for example the sum of 5 and 8 is 13, so as an equation that is 5 + 8 = 13

the difference is the same thing as the sum but it's subtraction.

and then times is just multiplication.

You might be interested in

What is the value of x and the length of segment DE?

Mandarinka [93]

Answer:

Part 1) $x=6.6\ units$

Part 2) $DE=16.2\ units$

Step-by-step explanation:

Part 1) Find the value of x

we know that

Triangles CDF and FDE are similar

therefore

The ratio of its corresponding sides is proportional and its corresponding angles are congruent

$CD/FD=FD/DE$

$\frac{5}{9}=\frac{9}{2x+3} \\ \\5*(2x+3)=9*9\\ \\10x+15=81\\ \\10x= 81-15\\ \\10x=66\\ \\ x=6.6\ units$

Part 2) Find the length of DE

$DE=2x+3$

substitute the value of x

$DE=2(6.6)+3=16.2\ units$

8 0

3 years ago

Read 2 more answers

Anybody know the answer?

maksim [4K]

x is 3pi/4 and 7pi/4

Type in correctly

8 0

3 years ago

Is 14/35 and 21/42 proportional

PIT_PIT [208]

1.Simplified each one
2/5 (both divided by 7) , 1/2 (divided by 21)
2.Make them into integer
(2/5 )*(2/2)=4/10 , (1/2)*(5/5)=5/10
Now the dominators are the same ,you can just compare the numerators. It is 4:5

8 0

3 years ago

Which of the following side-angle relationships in △ABC are true? Select all that apply.

GarryVolchara [31]

I think its B and D the smallest angle is opposite the small side and the largest angle is opposite the largest side

3 0

3 years ago

What term best describes the graph of y = x - 1?<br>Increasing, Decreasing, Constant, or Positive

egoroff_w [7]

Answer : increasing

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers