All categories

3 years ago

Solve 7x + 4 = 5x + 8 + 2x - 10

2 answers:

6 0

7x + 4 = 5x + 8 + 2x - 10

7x + 4 = 7x + 8 - 10

7x + 4 = 7x - 2 (cancel out equal terms here)

4 = -2

ANSWER: no solution

ladessa [460]3 years ago

3 0

So, 7x + 4 = 10x - 2;

Then, 4 + 2 = 10x - 7x;

6 = 3x;

x = 6 ÷ 3;

x = 2.

You might be interested in

WILL MARK BRAINLIEST AND EXTRA POINTS ONLY HAVE 5 MINS

adelina 88 [10]

Answer:

1/3?

Step-by-step explanation:

8 0

3 years ago

Joan needs to estimate the size of her bedroom so that she can buy enough paint to cover the walls. Two of the walls measure 2.8

labwork [276]

The total area of the room is 37.6376 and the no. of cans required to paint the wall is 3 cans.

The measurement of two of the walls is 2.86 metres and 3.16 metre

Area of the two walls = 2(length x breadth)

Area = 2(2.86 x 3.16) = 18.0752 m²

The measurement of the other two walls is 2.86 metres and 3.42 metres

Area of the two walls = 2(length × breadth)

Area = 2(2.86 × 3.42) = 19.5624 m²

Total area = 18.0752 + 19.5624 = 37.6376 m²

If one can of paint can cover 15 m², the no. of cans required to paint the bedroom will be

No. of cans = Total area/Area covered by one can of paint

No. of cans = 37.6376/15 = 2.5091 = 3 cans (approx.)

3 0

1 year ago

If i have 20 cookies and i take 10 away, how much do i have left

pentagon [3]

Answer:

Step-by-step explanation:

20 - 10 = 10

8 0

3 years ago

Read 2 more answers

Hey and I supposed to add or multiple when there is volume?

MrMuchimi

Answer:

mutiply

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

uppose that Mary's utility function is U(W) = W0.5, where W is wealth. She has an initial wealth of $100. How much of a risk

Stels [109]

Note that $U(W) = W^{0.5}$

Answer:

Mary's risk premium is $0.9375

Step-by-step explanation:

Mary's utility function, $U(W) = W^{0.5}$

Mary's initial wealth = $100

The gamble has a 50% probability of raising her wealth to $115 and a 50% probability of lowering it to $77

Expected wealth of Mary, $E_w$

$E_{w}$ = (0.5 * $115) + (0.5 * $77)

$E_{w}$ = 57.5 + 38.5

$E_{w}$ = $96

The expected value of Mary's wealth is $96

Calculate the expected utility (EU) of Mary:-

$E_u = [0.5 * U(115)] + [0.5 * U(77)]\\E_u = [0.5 * 115^{0.5}] + [0.5 * 77^{0.5}]\\E_u = 5.36 + 4.39\\E_u = \$ 9.75$

The expected utility of Mary is $9.75

Mary will be willing to pay an amount P as risk premium to avoid taking the risk, where

U(EW - P) is equal to Mary's expected utility from the risky gamble.

U(EW - P) = EU

U(94 - P) = 9.63

Square root (94 - P) = 9.63

If Mary's risk premium is P, the expected utility will be given by the formula:

$E_{u} = U(E_{w} - P)\\E_{u} = U(96 - P)\\E_u = (96 - P)^{0.5}\\(E_u)^2 = 96 - P\\ 9.75^2 = 96 - P\\95.0625 = 96 - P\\P = 96 - 95.0625\\P = 0.9375$

Mary's risk premium is $0.9375

7 0

3 years ago