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Nataly_w [17]
3 years ago
8

Solve the simultaneous equations 3x-4y=18

Mathematics
1 answer:
GuDViN [60]3 years ago
8 0

Step-by-step explanation:

  • 3x-4y=18

3x=18+4y

x=18+4y/3

  • 3(18+4y/3)-4y=18

18+4y-4y=18

18=18

so there is equare

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Im very confused with how to solve and would like help please​
Schach [20]

Answer:

(x+1 )- (x-2) ≠ -1

Step-by-step explanation:

8 0
3 years ago
What is an equation of the line that passes through the points (-8, 8) and (4, -1)? Put your answer in fully reduced form.
Salsk061 [2.6K]
Slope: -4/3
y+1=-3/4(x-4)
y+1= -3/4 +3
y= -3/4x +2
7 0
3 years ago
Which ideas from the excerpt would be most appropriate to
Elenna [48]

Answer:

Step-by-step explanation:

A) Popular novels from the past often ask provocative questions that are important to consider today.

In this speech, President Reagan uses the ending of a popular novel of the '60s to help pose his question about whether history still has a place for America, her people and her ideals. He takes provocative questions written in an old novel and uses them to show important subjects that need to be addressed today.

B) Many Americans have given up and say that the nation is no longer great or a land of dreams.

In his speech Reagan states that many Americans have lost their faith in their country and no longer believe that it is a place for dreams and greatness. This people say that Americans must "cut our expectations, conserve and withdraw"

C) President Reagan believed that John Wayne would argue that he was not the last American hero, because there are many more.

After the passing of the iconic Hollywood actor, John "Duke" Wayne, the headlines on the newspapers called him the "Last American Hero". Reagan, being a close friend of the late actor, stated that Wayne would've hated being called that, since he knew there were still many other heroes in America.

3 0
3 years ago
Read 2 more answers
2.5h= min pls answer me quick pls​
Effectus [21]

Answer:

2.5h = 150 min.

Step-by-step explanation:

An hour is 60 minutes.

A half an hour is 30 minutes.

Two hours = 1 hour + 1 hour = 60 minutes + 60 minutes = 120 minutes

2.5 hours = 2 hours + 1/2 hour = 120 minutes + 30 minutes = 150 minutes

2.5h = 150 min.

Hope this helps.

6 0
3 years ago
Please help me answer thanks.
Dmitry_Shevchenko [17]

Answer:

see explanation

Step-by-step explanation:

Given that M is directly proportional to r³ then the equation relating them is

M = kr³  ← k is the constant of proportion

To find k use the condition when r = 4, M = 160, thus

160 = k × 4³ = 64k ( divide both sides by 64 )

2.5 = k

M = 2.5r³ ← equation of variation

(a)

When r = 2, then

M = 2.5 × 2³ = 2.5 × 8 = 20

(b)

When M = 540, then

540 = 2.5r³ ( divide both sides by 2.5 )_

216 = r³ ( take the cube root of both sides )

r = \sqrt[3]{216} = 6

5 0
3 years ago
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