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3 years ago

Write the linear equation in slope-intercept form -4x + 2y = 10

1 answer:

3 0

You know slope intercept form is y=mx+b so just put in that form by:
Adding 4x to other side
2y=10+4x
Then divide by 2
Y=10/2 +4/2x
Simplify
Y=5+2x
I rearranged so x is first so your answer would be: y=2x+5

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Bumek [7]

Answer:

1) vertical-Line test

2)y=x

3)x

4)domain

Step-by-step explanation:

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2 years ago

Tickets to a concert cost $2 for children, $3 for teenagers and $5 for adults. When 570 people attended the concert, the total t

-Dominant- [34]

Let

x--------> the number of children

y------> the number of teenagers

z------> the number of adults

we know that

$2x+3y+5z=1,950$ ------> equation A

$x+y+z=570$ -----> equation B

$y=\frac{3}{4}x$

$x=\frac{4}{3}y$ -------> equation C

Substitute equation C in equation A and equation B

$2[\frac{4}{3}y]+3y+5z=1,950$

$\frac{17}{3}y+5z=1,950$ --------> equation D

$[\frac{4}{3}y]+y+z=570$

$\frac{7}{3}y+z=570$ --------> equation E

Multiply equation E by $-5$

$-\frac{35}{3}y-5z=-2,850$ --------> equation F

Adds equation D and equation F

$\frac{17}{3}y+5z=1,950\\\\-\frac{35}{3}y-5z=-2,850\\\\---------\\\\-\frac{18}{3}y=-900\\\\y=3*900/18\\\\y=150\ teenagers$

therefore

<u>the answer is the option</u>

$150\ teenagers$

4 0

2 years ago

Read 2 more answers

What is the product of StartFraction 5 Over 11 EndFraction and Three-fourths?

Alex

Answer:

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Step-by-step explanation:

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2 years ago

Read 2 more answers

Which of the following equations has infinitely many solutions? A. 2x + 5(2x + 6) = 12x + 30 B. 2x + 5 = 2 C. 2(x + 5) + 2 = 6x

Nat2105 [25]

Answer:

A. 2x + 5(2x + 6) = 12x + 30

Step-by-step explanation:

Infinitely many solutions means the two sides of the equation will be equal to each other, so B and D can be eliminated. Distribute for A and C to check

A. 2x + 5(2x + 6) = 12x + 30

2x + 10x + 30 = 12x + 30

12x + 30 = 12x + 30

C. 2(x + 5) + 2 = 6x + 2(x + 2)

2x + 10 + 2 = 6x +2x + 4

2x + 12 = 8x + 4

You only get the same equation for A, therefore A is the correct answer

8 0

2 years ago

Becky invests £5000 for 2 years in a bank account.

Arte-miy333 [17]

Answer:

£300

Step-by-step explanation:

We apply the formula for Simple Interest:

$I = \frac{P * R * T}{100}$

where P = Principal

R = Rate of interest

T = Time elapsed (in years)

We are given that P = £5000, R = 3%, T = 2 years

The interest after 2 years will be:

$I = \frac{5000 * 3 * 2}{100} \\\\\\I = \frac{30000}{100}$

I = £300

The interest Becky will get after 2 years will be £300.

6 0

2 years ago