15x120 helppp what is this and how do u get the answer

Answer:

x=-16

Step-by-step explanation:

y=-20

y=x-4

-20=x-4

x=-16

Answer:

135 minutes

Step-by-step explanation:

The total number of minutes Tim needs to practice is 300 minutes.

We subtract the number of minutes he has already finshed:

300 - 127 - 38 = 135 minutes

Answer:

138 minutes

Step-by-step explanation:

so all we have to do is subtract the times he practiced for on sunday and tuesday by 300

300-127-38=138

he still has to practice 138 minutes to reach his goal

Answer:

Step-by-step explanation:

6/9+x=7/10

x=7/10-6/9

when adding fractions both denominators must be equal, we’ll make them 90

x=(7/10)(9/9)-(6/9)(10/10)

x=63/90-60/90

x=3/90, the greatest divisor of 3 and 90 is 3 so divide both the numerator and denominator by 3

x=(3/3)/(90/3)

x=1/30

Answer:

colby is faster

Step-by-step explanation:

he ran more meters in less time he is faster

Answer:

16 percent

Step-by-step explanation:

75 is the old value and 87 is the new value. In this case we have a positive change (increase) of 16 percent because the new value is greater than the old value.

Answer:

15125265

Step-by-step explanation:

Answer:

Step-by-step explanation:

x + y = 6 -------------(I)

    y = 6 -x

2.5x + 3.25y = 15.75 -------------(II)

substitute y = 6 - x in equation (II)

2.5x + 3.25*(6 - x) = 15.75      {Distributive property: a(b +c) =a*b + b*c}

2.5x + 3.25*6 - x * 3.25 = 15.75    

2.5x + 19.5 - 3.25x = 15.75

2.5x - 3.25x + 19.5 = 15.75    {Combine like terms}

-0.75x +  19.5 = 15.75

            -0.75x=15.75 - 19.5

           -0.75x = -3.75

                  x = -3.75/-0.75

                  x = 5

Plugin x = 5 in (I)

5 + y = 6

     y = 6 - 5

    y = 1

Answer:

I think angel 2 and angle 3

and angel 5 and angle 8

are the pairs of vertical angle.

hope it helps.

Answer:

Step-by-step explanation:

Answer:

$30.40

Step-by-step explanation:

to find out how much 20 candy bars would cost, first, we have to find out how much 1 candy bar costs. we do this by dividing $19.76 by 13.

$19.76 ÷ 13 = $1.52

so now we know that one candy bar costs $1.52. now, we multiply this value to 20, to know how much 20 candy bars cost. therefore, we get:

20 × $1.52 = $30.40

Answer: I think it might be A bit Im not sure

Step-by-step explanation:

Answer:

i think its A not suree

Step-by-step explanation:

Answer:

thanks for the points

Step-by-step explanation:

Answer:

15+9 is 3(5+3)

8+10 is 2(4+5)

6+4 is 2(3+2)

10+12 is 2(5+6)

Answer:

so what was it because i need help NEVER MIND ITS 211.95

Step-by-step explanation:

Answer:  211.95 in3

Step-by-step explanation:

Answer:

a.) X  ≈ N (0, 12)

b.) Y ≈  exp(2)

c.) The given distribution is not defined.

d.) Not a standard form of any distribution .

Step-by-step explanation:

Given - In parts (a)−(d) below, either use the information given to determine

            the distribution of the random variable, or show that the information

            given is not sufficient by describing at least two different random

            variables that satisfy the given condition.

To find - (a) X is a random variable such that Mₓ(t) = [tex]e^{6t^{2} }[/tex] when |t| < 2.

              (b) Y is a random variable such that  [tex]M_{Y}[/tex](t) = [tex]\frac{2}{2 - t}[/tex] for t < 0.5.

              (c) Z is a random variable such that [tex]M_{Z}[/tex](t) = ∞ for t ≥ 5.

              (d) W is a random variable such that [tex]M_{W}[/tex](2) = 2

Proof -

a.)

As we know that the moment generating function of normal distribution is given by

Mₓ(t) = [tex]e^{ut + \frac{1}{2}t^{2} \sigma^{2}}[/tex]

Now,

Mₓ(t) = [tex]e^{6t^{2} }[/tex]

       = [tex]e^{0(t) + \frac{12}{2} t^{2} }[/tex]

⇒μ = 0, σ = 12

Nd it is represented by

X  ≈ N (0, 12)

b.)

Moment generating function of exponential function is given by

[tex]M_{Y}[/tex](t) = [tex]( 1 - \frac{t}{\theta})^{-1}[/tex]

Now,

 [tex]M_{Y}[/tex](t) = [tex]\frac{2}{2 - t}[/tex] for t < 0.5.

          = [tex]\frac{1}{\frac{2 - t}{2} }[/tex]

          = [tex]\frac{1}{1 - \frac{t}{2} }[/tex]

          = [tex]( 1 - \frac{t}{2} )^{-1}[/tex]

And it is represented by

Y ≈  exp(2)

c.)

Z is a random variable such that [tex]M_{Z}[/tex](t) = ∞ for t ≥ 5.

The given distribution is undefined.

d.)

[tex]M_{W}[/tex](2) = E([tex]e^{2w}[/tex] )

           = [tex]\int\limits^{-\infty}_{\infty} {e^{2w} f(w) } \, dw[/tex]

          = 2

It is not the standard form of any distribution.

Answer:

the answer is (6,2)

Step-by-step explanation:

Hope this helps

Answer:

I think false

Step-by-step explanation:

This may be more complicated than it looks but here are the odd numbers before nine:

1, 3, 5, 7    

Hope this helps!

Answer:

Debit Cash $12,000

Credit Interest Revenue $12,000

Step-by-step explanation:

Based on the information given in a situation where Landmark bought $300,000 of SRW Company's which includes 8% bonds payable which means that if the Interest payments are

made semiannually on December 31 as well as on June 30. The journal entry that Landmark should make to record the interest earned at year-end December 31 is:

Debit Cash $12,000

Credit Interest Revenue $12,000

($300,000*8%*6/12)

Answer:

$ 2,200 for 8%, $ 1,300 for 12%

Step-by-step explanation:

I=PRT

Let Bank 1 be x

332= x (8%) + (3,500-x) 12%

332= x (0.08) + (3,500-x) 0.12   change the percent to decimal

332= 0.08x + 420 - 0.12x

0.04x= 420-332

x= [tex]\frac{88}{0.04}[/tex]

x= 2,200 (Bank 1)

Bank 2= 3,500-Bank 1

Bank 2= 3,500- 2,200

Bank 2= 1,300

Answer:

1 < a < b < 4

so 'a' could be 2 and 'b' could only be 3

2 + 3 = 5

Step-by-step explanation:

Answer:

n + 0.5 = p

Step-by-step explanation:

I'm not sure how you format it so the AI would understand.

Answer:

14 / 12 miles or 1 1/6 miles

Step-by-step explanation:

A group of campers walked 4 2/3 miles along a hiking trail.

Distance = 4 2/3 miles

Another group of campers walked 1/4 of that distance with the first group before turning off onto another trail.

That is; 1/4 of 4 2/3 miles

How many miles did the two groups of campers walk with one another ?

This is obtained by solving 1/4 of 4 2/3 miles

Converting 4 2/3 to an improper fraction;

4 2/3 = 14 / 3 Miles

1/4 of 14 / 3

1 / 4 * 14 / 3

= 14 / 12 miles or 1 1/6 miles