A system of equations has infinitely many solutions. If zy - 4x = 6 is one of the equations, which could be the other equation?

Susan drove 571 miles and the trip took 14 hours of driving time she wants to shorten her driving time by 1/2 hour what average

Allushta [10]

Answer: The answer is 80 mph.

Step-by-step explanation: 1. Divide 14 from 571.

2. You'll get the answer 40. So it's 40 mph.

3. If she's trying to shorten by 1/2 then she should drive 80 mph because if you drive 80 mph it will take 7 hours instead of 14 hours. (She'll go 7 hours because you divide 14 hours by 2. Then you have to multiply 2 to 40.)

8 0

3 years ago

W divide 3+6 = 2 I need help I don’t know how to get the answer

tatuchka [14]

Assignment: $\bold{Solve \ Equation: \ \frac{w}{3+6}=2\quad }$

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Answer: $\boxed{\bold{w=18}}$

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Explanation: $\downarrow\downarrow\downarrow$

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Note: $\bold{Fraction \ Bar \ "/" \ = \ \div}$

[ Step One ] Multiply Both Sides By 9

$\bold{\frac{9w}{3+6}=2\cdot \:9}$

[ Step Two ] Simplify

$\bold{w=18}$

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$\bold{\rightarrow Mordancy \leftarrow}$

6 0

3 years ago

The total number of victories for a football team exceeds the number of defeats by 4, with no draws. Knowing that if 44 jojos, h

Leno4ka [110]

Answer: 24

Step-by-step explanation:

Let the number of defeats be represented by x.

Since the total number of victories exceeds the number of defeats by 4, then the number of victories will be:

= x + 4

We then add the number of victories and losses together and equate them to 44. This will be:

x + x + 4 = 44

2x + 4 = 44

2x = 44 - 4

2x = 40

x = 40/2

x = 20

Therefore number of victories will be:

= x + 4

= 20 + 4

= 24

7 0

2 years ago

Restaurateur Denny Valentine is evaluating two sites, Raymondville and Rosenberg, for his next restaurant. He wants to prove tha

Aleksandr-060686 [28]

Answer:

$\bar X_1$ represent the sample for the sample 1

$\bar X_2$ represent the sample for the sample 2

$s_1$ represent the deviation for the sample 1

$s_2$ represent the deviation for the sample 2

$n_1 = 81$ represent the sample size for the group 1

$n_2 = 81$ represent the sample size for the group 2

And on this case if we create the system of hypothesis we have this:

Null hypothesis : $\mu_1 -\mu_2 \leq 0$

Alternative hypothesis: $\mu_1 -\mu_2 >0$

Step-by-step explanation:

Previous concepts

A hypothesis is defined as "a speculation or theory based on insufficient evidence that lends itself to further testing and experimentation. With further testing, a hypothesis can usually be proven true or false".

The null hypothesis is defined as "a hypothesis that says there is no statistical significance between the two variables in the hypothesis. It is the hypothesis that the researcher is trying to disprove".

The alternative hypothesis is "just the inverse, or opposite, of the null hypothesis. It is the hypothesis that researcher is trying to prove".

On this caseHe wants to prove that Raymondville residents (population 1) dine out more often than Rosenberg residents (population 2). So this statement need to be on the alternative hypothesis. And the complement of the alternative hypothesis would be on the null hypothesis.

Solution to the problem

We assume that we have the following statistics:

$\bar X_1$ represent the sample for the sample 1

$\bar X_2$ represent the sample for the sample 2

$s_1$ represent the deviation for the sample 1

$s_2$ represent the deviation for the sample 2

$n_1 = 81$ represent the sample size for the group 1

$n_2 = 81$ represent the sample size for the group 2

And on this case if we create the system of hypothesis we have this:

Null hypothesis : $\mu_1 -\mu_2 \leq 0$

Alternative hypothesis: $\mu_1 -\mu_2 >0$

5 0

3 years ago

I. Let f(x) = 2x – 1, g(x) = 3x, and h(x) = x2<br> + 1. Compute the following:<br><br> 1. f(g(-1))

aleksandrvk [35]

F(g(-1))
g(-1) = 3(-1) = -3
f(-3) = 2(-3) -1 = -6 -1 = -7

3 0

2 years ago