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3 years ago

How do you solve for x? 3 + 2x = 4y

Mathematics

2 answers:

Dimas [21]3 years ago

8 0

Answer:

x= 2y - 3/2

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

Tanzania [10]3 years ago

6 0

Answer:

x=2y - 3/2

Step-by-step explanation:

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Danielle has her finals coming up and she's worried she'll fail her class. Her past 3 test grades were a 72. an 85, and a 68. Sh

natka813 [3]

Answer:

Step-by-step explanation:

7 0

3 years ago

PLEASE HELP!

bagirrra123 [75]

Answer: c) $30,799.45

Step-by-step explanation:

Assuming there are 52 weeks in a year, the rate and time would be converted to;

Rate = 8%/52 = 8/52%

No. of periods = 9 years * 52 weeks = 468

The amount Mr Mantle would have is;

= 15,000 * ( 1 + 8/52%) ⁴⁶⁸

= $30,799.45276

= $30,799.45

5 0

3 years ago

Help!!! Quick!!! Plzzzzz!!!

max2010maxim [7]

Answer:

x = -8

y = 9

Step-by-step explanation:

to solve this expression using simultaneous equation, we would say let

y =9............................................. equation 1

6x + 5y =-3............................................equation 2

substitute equation 1 into equation 2

-3 = 6x + 5y............................................equation 2

6x + 5(9) = -3

6x + 45 = -3

collect the like terms

6x = -3-45

6x = -48

divide both sides by the coefficient of x which is 6

6x/6 = -48/6

x = -8

therefore y = 9

x = -8

4 0

3 years ago

If the cubic function P(x) includes the points (−1, 0), (−2, 0), (3, 0), and (0, −12) which of the following represents this fun

zhannawk [14.2K]

I think the answer would be <span>2(x + 1)(x + 2)(x - 3).
Hope this helped! :) </span>

3 0

3 years ago

A professor finds that the average SAT score among all students attending his college is 1150 ± 150 (μ ± σ). He polls his class

solniwko [45]

Answer:

Step-by-step explanation

Hello!

Be X: SAT scores of students attending college.

The population mean is μ= 1150 and the standard deviation σ= 150

The teacher takes a sample of 25 students of his class, the resulting sample mean is 1200.

If the professor wants to test if the average SAT score is, as reported, 1150, the statistic hypotheses are:

H₀: μ = 1150

H₁: μ ≠ 1150

α: 0.05

$Z= \frac{X[bar]-Mu}{\frac{Sigma}{\sqrt{n} } } ~~N(0;1)$

$Z_{H_0}= \frac{1200-1150}{\frac{150}{\sqrt{25} } } = 1.67$

The p-value for this test is 0.0949

Since the p-value is greater than the level of significance, the decision is to reject the null hypothesis. Then using a significance level of 5%, there is enough evidence to reject the null hypothesis, then the average SAT score of the college students is not 1150.

I hope it helps!

7 0

3 years ago

How do you solve for x? 3 + 2x = 4y​

How do you solve for x? 3 + 2x = 4y