Final quetion on this website :D it's worth 30 points :) But there are 3 questions. Anwser them all completely please. I also give thanks and if you need help just pm me

Answers

Answer 1

Answer: 1. enlarged by a scale factor of 10/1 or basically he made the legnth and the width 10 times bigger
4 times 10=40
6 times 10=60
new dimentions are 40 inches by 60 inches

2.
A: normally we write ratios in (distance):(time) so
marie=325:20
tamara=255:15
B. proportional means that if you conver to fraction and simplify, they will be equall so
325/20=16.25/
255/15=17/1
they are not equal and therefor NOT proportional

3. so we use slope intercept form which is y=mx+b where m=slope and b=y-intercept
so we find the equation
slope=-4/3
we are given the point (0,16)
the y-intercept is where x=0
in (x,y) form, (0,16), x=0 and y=16
b=16
y=-4/3x+16
the x intercept is where the line crosses the x axis or when y=0 so set y=0 so
0=-4/3x+16
subtract 16 from both sides
-16=-4/3x
multiply both sides by -1 because I don't like negatives
16=4/3x
multiply both sides by 3
48=4x
divide both sides by 4
12=x
solution=(12,0)

it will cross at (12,0)

ANSWERS
1.40 inches by 60 inches
2. A.marie=325:20 tamara=255:15
B.They are NOT proportonal
3. the point (12,0)

Answer 2

Answer: 1) 4* 10 : 6 * (10) = 40:60 inches.
2) a. $(325)/(20)$ : $(255)/(15)$ Now reduce
$(65)/(4)$ : $(17)/(1)$ The ratios are not proportional.
3) [0, 16], [3, 12], [6, 8], [9, 4], [12, 0]
The answer is [12, 0]

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An average person's heart beats about 103,680 times a day. Write and solve an equation to find about how many times the average person's heart beats in one minute.

Answers

It should be noted that in each day there are 24 hours which in turn is comprised of 60 minutes each. The way to answer this item to properly do the conversion and the dimensional analysis.
1. The equation that would be used in order to find out how many beats in one minute does an average human's heart do is,
x = (103,680 times/day)(1 day/24 hours)(1 hour/60 minutes)Simplifying,
x = 72 times / minute

How much money does the person earn every hour.

Answers

It depends what job a person has

5t-14=-14
solve the equation for t

Answers

Hi there!

Before we begin, let's rewrite your equation. :)

$5t - 14 = -14$

Step 1) Add 14 to both sides.

$5t - 14 + 14 = -14 + 14 5t = 0$

Step 2) Divide both sides by 5.

$(5t)/(5) = (0)/(5)$

$t = 0$

Final Answer -

$t = 0$

Hope this helps!

Message me if you need anymore help! :D

What is .67 written as a percentage

Answers

Hi there, .67=0.67*100=67%, Therefore, .67 written as a percentage is 67%

multiply 0.67 by 100
you get 67%

Solve the problem.If $13,000 is borrowed at 5.8% simple interest for 10 years, how much interest will be paid for the loan?

Answers

Answer:

Interest =$7540

Step-by-step explanation:

p=$13000

r=5.8%

t=10yrs

i=p*r*t/100

=13000*5.8*10/1000

=130*58

= $7540

Estimate how many times larger 4 x 10^15 is than 19 x 10^12.A)
20 times larger
B)
50 times larger
C)
100 times larger
D)
200 times larger

Answers

whats the answer

i am working on the same test right now

Answer:

D) 200

Step-by-step explanation: