1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
nordsb [41]
3 years ago
12

A adult blinks about 450 times every 30 minutes. a 12 year old blinks about 150 times every 15 minutes. how many more times does

a adult blink every hour than a 12 year old
Mathematics
1 answer:
ahrayia [7]3 years ago
4 0
An adult blinks 300 times more in an hour
You might be interested in
You are buying a home for $158,950. You have an annual interest rate of 3.72% over the next 30 years. How much is the final cost
jeka57 [31]
The answer is $475,484 I believe
7 0
3 years ago
X y
Darina [25.2K]

Answer:

Part 1) The rate of change is \frac{17}{15}

Part 2) The initial value is 68

Part 3) The function rule to the linear model is y=\frac{17}{15}x+68

Step-by-step explanation:

we know that

The linear equation in slope intercept form is equal to

y=mx+b

where

m is the slope or unit rate

b is the y-intercept or initial value

step 1

Find the slope

take two points from the table

(0,68) and (15,85)

The formula to calculate the slope between two points is equal to

m=\frac{y2-y1}{x2-x1}

substitute the values

m=\frac{85-68}{15-0}

m=\frac{17}{15}

In a linear function , the slope is the same that the rate of change

therefore

The rate of change is \frac{17}{15}

step 2

Find the y-intercept

we know that

The y-intercept is the value of y when the value of x is equal to zero

Looking at the table

For x=0, y=68

therefore

The y-intercept is

b=68

The y-intercept is also called the initial value

therefore

The initial value is 68

step 3

Determine the function rule to the linear model

y=mx+b

we have

m=\frac{17}{15}

b=68

substitute

y=\frac{17}{15}x+68

8 0
3 years ago
5 7/5-5 2/5-3 4/5 equal what
Katyanochek1 [597]

Answer:

-78.424

Step-by-step explanation:

8 0
3 years ago
2x-1=4<br> -2x+y=8<br> Find the value of x
andrezito [222]

Answer:

Step-by-step explanation:

2x=5

x=2.5

4 0
2 years ago
Points a,b and c are collinear and in that order. If AC=3x+3, AB=-1+2x, and Bc=11, find x and AC
zimovet [89]

The answers are:

AC = AB + BC

3x+3 = -1+2x+11

3x-2x = -1-3+11

x = 7


AC = 3x+3                   x = 7

AC = 3x7+3

AC = 24


Hope it helps!


4 0
2 years ago
Other questions:
  • How much times can 8 go into 195
    15·2 answers
  • Determine the values to complete the Relative Frequency by Rows table.
    10·1 answer
  • Someone Please Helpppppp pleaseee
    11·1 answer
  • 3. Which of the following has a value that is
    5·1 answer
  • Where is the point of concurrency of the angle bisectors of a triangle?
    5·1 answer
  • Sevaral rabbits ran ............ (around/across) the road infront of the car.​
    13·1 answer
  • What fractional part is black?
    7·2 answers
  • Given: Circle W W (-4, 6) Radius = 10 Units Which point lies on circle W?
    6·1 answer
  • Through: (1, 3), perp. to y = x + 5
    8·1 answer
  • Suppose that the functions u and w are defined as follows.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!