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3 years ago

Solve the formula 12x+2y=10 for y

Mathematics

2 answers:

Angelina_Jolie [31]3 years ago

8 0

12x = 10 - 2y

12x - 10 = - 2y

-6x + 5 = y also written as y = -6x + 5

Mars2501 [29]3 years ago

3 0

12x + 2y = 10

Divide the equation by 2,
6x + y = 5
y = 5 - 6x

In short, Your Answer would be y = -6x + 5

Hope this helps!

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Find the sum of all multiples of 7 lying between<br>500 & 900

Anna11 [10]

Answer:

Sₙ = 57/2 * (504 + 896) = 39900

Step-by-step explanation:

first multiple of 7 after 500 is: 72 *7 = 504

last multiple of 7 before 900 is: 128 *7 = 896

a₁ = 504

aₙ = 896

where n = 128-72 +1 = 57

sum of arithmetic sequence: Sₙ = n/2 * (a₁ + aₙ)

Sₙ = 57/2 * (504 + 896) = 39900

6 0

2 years ago

For women aged 18-24, systolic blood pressures are normally distributed with a mean of 114.8 mm Hg and a standard deviation of

NNADVOKAT [17]

Answer:

0.0579 is the probability that mean systolic blood pressure is between 119 and 122 mm Hg for the sample.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 114.8 mm Hg

Standard Deviation, σ = 13.1 mm Hg

Sample size = 23

We are given that the distribution of systolic blood pressures is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

Standard error due to sampling:

$\displaystyle\frac{\sigma}{\sqrt{n}} = \frac{13.1}{\sqrt{23}} = 2.731$

P(blood pressure is between 119 and 122 mm Hg)

$P(119 \leq x \leq 122) = P(\displaystyle\frac{119 - 114.8}{2.731} \leq z \leq \displaystyle\frac{122-114.8}{2.731}) = P(1.537 \leq z \leq 2.636)\\\\= P(z \leq 2.636) - P(z < 1.537)\\= 0.9958 - 0.9379 = 0.0579= 5.79\%$

$P(119 \leq x \leq 122) = 5.79\%$

0.0579 is the probability that mean systolic blood pressure is between 119 and 122 mm Hg for the sample.

8 0

2 years ago

Algebra- systems of equations (x,y)<br> 3x + 4y = 56<br> x = 3y + 12

ElenaW [278]

Answer:

Step-by-step explanation:

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7 0

3 years ago

0.5 percent of what number is 12

gavmur [86]

Answer:24

Step-by-step explanation:

0.5 is half to get a whole 12x 2 =24

6 0

2 years ago

Gotta go back to school today..

PIT_PIT [208]

Answer:

I believe its 33.60 because if you add up 33.+5% that would give you 33.6 so its 33.60

Step-by-step explanation:

Hope its right

3 0

3 years ago