Scarlett's math teacher finds that there's roughly a linear relationship between the
amount of time students spend on their homework and their weekly quiz scores. This
relationship can be represented by the equation y = 60 + 8x, where y represents
the expected quiz score and x represents hours spent on homework that week. What
is the meaning of the x-value when y = 89?

Answer:

hope this helps you out good luck with your math

Answer:

A) 18x + 15

Step-by-step explanation:

Brainliest please?

Answer:

Solution given;

[tex] \sqrt{625 \times 16} [/tex]

[tex] \sqrt{25²\times 4²} [/tex]

±(25*4)

±100 is a required answer.

Answer:

[tex]\sqrt{625\cdot \:16}[/tex]

[tex]=\sqrt{10000}[/tex]

[tex]=\sqrt{100^2}[/tex]

[tex]=100[/tex]

Answer:

Percent markup is 200%

Step-by-step explanation:

The cost of each stylus is

[tex]\frac{400}{200} = 2[/tex] dollars

The selling price of each stylus is $6

Percent markup  =

(Selling price - cost price)/cost price *100

[tex]\frac{6-2}{2} *100\\2*100\\200[/tex]%

Percent markup is 200%

B 4,2 because it is 6 units away from the point

Answer:

95.60$

Step-by-step explanation:

50% discount is basically the price divided by 2. So if we inverse it it will become x2. 47.80x2=95.6

Answer:

Step-by-step explanation:

Answer:

1. 15/32 2. 53/100. 3. 7/14 or 1/2

Answer:

62.5%

Step-by-step explanation:

(10*8)/(16*8) = 0.625 = 62.5%

Answer:

m = rise/run = 270/20.5 = 13.17

Step-by-step explanation:

Going from (9, 260) to (29.5, 530), we see that the horizontal change (in x) is 20.5 and the vertical change (in y) is 270.  Thus, the slope is

m = rise/run = 270/20.5 = 13.17

Answer:

[tex]\sin{72^\circ}[/tex]

Step-by-step explanation:

In a right triangle, the two acute angles are complementary--they add up to 90 degrees.

Cosine is defined as the adjacent side divided by the hypotenuse.  In the attached picture,  [tex]\cos{18^\circ}=\frac{a}{h}[/tex].

The other acute angle is 90 - 18 = 72 degrees.  Looking at just that angle, side a is the opposite side.  So the ratio a/h is opposite over hypotenuse -- the sine ratio.

Therefor, [tex]\cos{18^\circ} = \sin{72^\circ}[/tex]

Answer:

a. 1.52%

b. There is 95% probability that the true population percentage lies between 53.8$ and 56.62%

Step-by-step explanation:

The number of participants in the sample, n = 4,100

The percentage that watched the particular popular situation episode, p = 55.1%

a. The margin of error is given by the following formula;

[tex]Margin \ of \ Error = Z_{\alpha /2} \times \sqrt{\dfrac{p \times (1 - p)}{n} }[/tex]

Where;

Z = The z-score at 95% = 1.96

p = The proportion of the sample that responded positively = 55.1% = 0.551

n = 4,100

From the above data, we get;

[tex]Margin \ of \ Error = 1.96 \times \sqrt{\dfrac{0.551 \times (1 - 0.551)}{4,100} } \approx 0.0152252[/tex]

The margin of Error ≈ 1.52%

b. The confidence interval is give as follows;

[tex]p \pm Z_{\alpha /2} \times \sqrt{\dfrac{p \times (1 - p)}{n} }[/tex]

Therefore, we get the 95% confidence interval as follows'

55.1 - 1.52 ≤ μ ≤ 55.1 + 1.52

53.8%  ≤ μ ≤ 56.62%

The answer as formatted in an online source is presented as follows;

There is 95% probability that the true population percentage lies between 53.8$ and 56.62%.

Answer:

× + 3902.00 = 25litres

Step-by-step explanation:

x per litres

25÷ xlitres = 3902pesos

Answer:

34 Deg

Step-by-step explanation:

Since the Triangle is isoceles, each of the internal base angle = 180-107=73

Sum of internal angles =180,  Angle4= 180-(73+73)= 180-146=34

Answer:

43

Step-by-step explanation:

180 - 43 = 137

then,

180 - 137 = 43

Answer:

3,760,128

Step-by-step explanation:

v = whl. process for volume of the bin

Answer:

45

Step-by-step explanation:

135 ÷ 3 = 45

1/3 = 45

2/3 = 90

3/3 = 135

Hopefully this helps :3 sorry if wrong :( plz mark brainiest if correct :D Your bootiful/handsome! Have a great day luv <3

-Bee~

After multiplying (1/3) with the given number 135:

One-third of 135 is 45

A fraction is a part of the whole number and a way to split up a number into equal parts. Or, A number which is expressed as a quotient is called a fraction.

It can be written in the form of p:q, which is equivalent to p / q.

The given number is: 135

One of third can be represented as 1/3

Now to find one-third of 135 multiply it with 1/3

Therefore,

135 x (1/3)

= 135/3

= 45

Hence,

One-third of the number 135 is 45.

To learn more about the fraction visit:

https://brainly.com/question/5454147

#SPJ6

Answer:

where is the question

Step-by-step explanation:

Answer:

1+1=2

2+2=4

Step-by-step explanation:

Answer:

Base = 353.55 sq cm

Step-by-step explanation:

10 by 10 triangle = 45 45 90 traingle

hypotenuse = 10√2

A = 10√2 by 25

Answer:

2

Step-by-step explanation:

I think the correct answer would be 2

Answer:

[tex]a_{n}[/tex] = [tex]a_{n-1}[/tex] × [tex]\frac{3}{4}[/tex]

Step-by-step explanation:

There is a common ratio r between consecutive terms

r = [tex]\frac{384}{512}[/tex] = [tex]\frac{288}{384}[/tex] = [tex]\frac{216}{288}[/tex] = [tex]\frac{3}{4}[/tex] , then recursive formula is

[tex]a_{n}[/tex] = [tex]a_{n-1}[/tex] × [tex]\frac{3}{4}[/tex] : a₁ = 512

Answer:

6.4 mins

Step-by-step explanation:

Answer:

⇒ 5/2 min

Step-by-step explanation:

Hong sing total song = 4

Every song takes time = 5/8min

4 song total takes

time = 4×5/8= 20/8

5/2 min

hope it helps..

have a great day!!

Answer:

Quadrant 2

Step-by-step explanation:

Quadrant 2 has a negative x-axis and a positive y-axis

Answer:

Quadrant 2

Step-by-step explanation:

Quadrant 2: (-, +)

Answer:

irrational

Step-by-step explanation:

pi is irrational, so even thought sqrt(4) is rational, this product is irrational.

Answer:

Equation: 112+x=180

Value of x: x=68

Answer: 80

Step-by-step explanation:

As  45 %  of a number is  36 ,

45 % × Number = 36

or  45 /100 × Number = 36

45 /100 × 100 /45 × Number =36 × 100 /45

Number = 4 × 100 / 5

Number=80