Solve x^3=1/8 a.1/2 b.+1/2 c.1/4 d.+1/4

What is 85/20 simplified

inessss [21]

Answer: 4 1/4

Step-by-step explanation: 85 divided by 20 is 4.25

6 0

3 years ago

Read 2 more answers

In the Mississippi River Delta, fresh water (0% salinity) mixes with salt water from the Gulf of Mexico (3 1 2% salinity). If 1,

Rina8888 [55]

Answer:

The total resulting gallons of water is 4,000 gallons

The concentration of the resulting solution is 2.625% salinity

Step-by-step explanation:

The salinity of the fresh water from the Mississippi River Delta = 0%

The salinity of the water from the Gulf of Mexico = 3 1/2%

Therefore, if 1,000 gallons of river water mixes with 3,000 gallons from the Gulf, we have;

The total resulting gallons of water = 1,000 + 3,000 = 4,000 gallons

The total resulting gallons of water = 4,000 gallons

The concentration of the resulting solution is found as follows;

The concentration of the resulting solution = (3 × 3 1/2)/400 × 100 = 2.625%

The concentration of the resulting solution = 2.625% salinity.

8 0

3 years ago

What was Dimitri's mistake? He mixed up the coordinates of the ordered pair when Substituting it into the equations 7x+9y=-4 and

seropon [69]

Answer:

He made a mistake in his calculations when simplifying 5x - 2y

Step-by-step explanation:

Given

The coordinate pair

$(x,y) = (2,-2)$

The equations

$7x + 9y = ?$

$5x - 2y = ?$

Dimitri's Solution

$Equation\ 1: 7x + 9y = -4.$

$7(2) + 9 (-2) = -4.$

$14 + (-18) = -4.$

$-4 = -4.$

$Equation\ 2: 5x -2y = 6.$

$5(2) - 2 (-2) = 6.$

$10 - 4 = 6.$

$6 = 6.$

Required

Identify Dimitri’s mistake

In the first equation, Dimitri made no mistake.

However, he made a mistake when simplifying the second equation.

We have:

$5x - 2y$

and

$(x,y) = (2,-2)$

Substitute $x = 2$ and $y = -2$

So, we have:

$5(2) -2(-2)$

Open bracket

$10 +4$

Finally, we have:

$14$

7 0

3 years ago

Need help writing an equation for a graph in slope-intercept form & standard form !

stich3 [128]

Remember that slope intersect from is y=mx+b
y=2/3x+2

5 0

3 years ago

A total of 800 pre-sale tickets and tickets at the gate were sold to football city championship game. If the number of tickets s

Nitella [24]

The number of presale tickets sold is 271

Solution:

Let "p" be the number of presale tickets sold

Let "g" be the number of tickets sold at gate

Given that, total of 800 Pre-sale tickets and tickets at the gate were sold

Therefore,

Presale tickets + tickets sold at gate = 800

p + g = 800 ------ eqn 1

Given that, number of tickets sold at the gate was thirteen less than twice the number of pre-sale tickets

Therefore,

Number of tickets sold at gate = twice the number of pre-sale tickets - 13

g = 2p - 13 ------- eqn 2

Let us solve eqn 1 and eqn 2

Substitute eqn 2 in eqn 1

p + 2p - 13 = 800

3p -13 = 800

3p = 800 + 13

3p = 813

p = 271

Thus 271 presale tickets were sold

4 0

4 years ago