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2 years ago

−5x+2y=9 y=7x solve the system of equation

Mathematics

1 answer:

egoroff_w [7]2 years ago

6 0

Here to solve the equation we need to plug in the value y as given. -5x+2(7x)=9. -5x+14x=9. 9x=9. X=1.

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If a baseball player get a hit in 31% of his at-bats, what is the probability that he will

solong [7]

Given:

A baseball player get a hit in 31% of his at-bats.

To find:

The probability that he will get a hit 5 at-bats in a row.

Solution:

Since, a baseball player get a hit in 31% of his at-bats, therefore

Probability that he get a hit = $\dfrac{31}{100}$

= $0.31$

Now, the probability that he will get a hit 5 at-bats in a row is

$P=0.31\times 0.31\times 0.31\times 0.31\times 0.31$

$P=(0.31)^5$

$P=0.0028629151
$

Therefore, the required probability is $(0.31)^5$ and it can be written as 0.0028629151 .

3 0

2 years ago

Timed help asap free 30 points after if correct find the value of the polynomial x^2-3xy+1/2 y^2 if x=3,y-2

BARSIC [14]

Answer:

Ans: 29

Step-by-step explanation:

soln:

Given,

x=3 and y=-2

Now,

x^2-3xy+1/2y^2

= 3^2-3×3×(-2) +1/2(-2)^2

= 9+18+4/2

= (18+36+4) /2

= 58/2

= 29 Ans

7 0

2 years ago

Moon Company produces baseball bats and cricket paddles. It has two departments that process all products – Cutting Department a

Sunny_sXe [5.5K]

The Moon Company's equivalents units for <em>transferred-in cost, direct materials, and conversion cost</em> are 74,800 / 101,200 / 86,800 respectively.

Data and Calculations:

Percentage of completion:

Beginning work in process = 80%

Ending work in process = 30%

Beginning inventories:

Transferred-in costs = $30,800

Direct materials costs = $13,200

Conversion costs = $27,500

Physical Flows of Units:

Beginning WIP = 26,400

Units transferred in from Cutting Department = 74,800

Total production units available = 101,200 (26,400 + 74,800)

Units completed and transferred out = 79,200

Ending WIP = 22,000

Transferred-in Direct Materials Conversion

Units transferred out 79,200 79,200

(79,200 x 100%)

Units transferred-in 74,800 0 0

(74,800 x 100%)

Ending WIP 0 22,000 (100%) 6,600 (22,000 x 30%)

Total equivalent units 74,800 101,200 86,800

Thus, the equivalent units for the Finishing Department are determined based on the percentage of completion under the Weighted Average Method.

Learn more: brainly.com/question/17078653

4 0

3 years ago

George’s parents are saving for his college fund. they put $5,000 into an interest bearing account with a compound interest rate

sergey [27]

so hmmm is compound interest, now, we'll be assuming the compounding period is per year, or annually, so it happens once per year.

$~~~~~~ \textit{Compound Interest Earned Amount} \\\\ A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill &\$5000\\ r=rate\to 5.5\%\to \frac{5.5}{100}\dotfill &0.055\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{annually, thus once} \end{array}\dotfill &1\\ t=years\dotfill &15 \end{cases} \\\\\\ A=5000\left(1+\frac{0.055}{1}\right)^{1\cdot 15}\implies A=5000(1.055)^{15}$

7 0

2 years ago

Billy drove his car 290 miles in 5 hours. Sheila drove her car 132 miles in 2 hours. If each driver is traveling at a constant s

Ksju [112]

Answer:

Shelia is

Step-by-step explanation:

hope this helps plz mark brainlessly

4 0

2 years ago

−5x+2y=9 y=7x ​ solve the system of equation

−5x+2y=9 y=7x solve the system of equation