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
galben [10]
3 years ago
8

which one of following statement expresses a true proportion 3:4=9:12 b. 2:1=1:2 c. 7:9=8:9 d. 54:9=6:3

Mathematics
1 answer:
Flura [38]3 years ago
3 0
A is the right one:
a. 3:4=9:12
    3×3:4×3=9:12
You might be interested in
how tall are sally and anna if sally is 0.1m taller than anna and their combined height is 3.16 meters
Veseljchak [2.6K]
Set up a simple equation with S FOR SALLY AND A FOR ANNA LOOKS LIKE THIS A+(A+.1)=3.16
8 0
3 years ago
Read 2 more answers
For each of the following research scenarios, decide whether the design uses a related sample. If the design uses a related samp
Wewaii [24]

Answer:1. uses a related sample - repeated measures

2. . does not use a related sample--a

Step-by-step explanation:

Question 1.

step1  A repeated measure design is a design which measures a given sample repeatedly over a given time using different conditions or related measures.

step 2:In the treatment for compulsive hoarding, Here, measures are taken two times ie before and after treatment on the same 50 hoarders which shows a repeated measure, also the design is a within related sample of the same 50 hoarders to give measurement at different conditions  of treatment for  high and low hoarding scores so the design describes  a related sample - repeated measures

Question 2:

step 1 ; An unrelated sample  occurs when Samples being measured do not depend on each other  

Step 2;  1st Sample for comparison by John are random lonely people  and Second Sample are random non lonely people. so the two samples are independent on each other and will give different  measurement based on quality of sleep.   So the design does not use a related sample

8 0
3 years ago
Can someone plug some numbers into a small equation real quick for me?:)
Arada [10]
-13 times -7 equals -91
5 0
3 years ago
Find the total in the account with the following facts monthly contributions =$180 employer matching 25% interest rate 4.99% yea
algol13

Answer:

The amount that will be in the account after 38 years is $ 36811,05

Step-by-step explanation:

a)

For resolved this exercise used the next equation

R(1-(1 + i)--) Ap = ... (1)

Ap = Amount in account

R = Paid monthly

i = Monthly interest rate

t = Months for paid

Dates

i=- 2.05% 12 = 0,1708% = 0.0017

The interest is divided for 12 because is annual and the formula is mensual

t = 15yearsx12 = 180 months

             R = 220$

R(1-(1 + i)-) Ap =

220(1-(1 + 0.0017)-180) Ap = 0.0017

162,04 Ap=0.0017

Ap = 95321,855

The amount that will be in the account after 15 years is $ 95,321.85

b)

R(1-(1 + i)--) Ap = ... (1)

Ap = Amount in account

R = Paid monthly

i = Monthly interest rate

t = Months for paid

i=- 4,99% -= 0,415% = 0.0041

The interest is divided for 12 because is annual and the formula is mensual

t = 38yearsx12 = 456 months

             R = 180$

R(1-(1 + i)-) Ap =

Ap = 180(1-(1 + 0.0041) -456 0.0041

Ap = 36811,055

The amount that will be in the account after 38 years is $ 36811,05

4 0
3 years ago
F-7/g = h for f<br>solve for f
gregori [183]
(f - 7)/g = h
f - 7 = gh
f = gh + 7
5 0
3 years ago
Other questions:
  • Help with radical form!
    9·2 answers
  • Next four multiples of a unit fraction one half
    13·2 answers
  • Sasha drank 21⁄2 pints of water, and on the way home she drank 1⁄2 cup of water. How much water did she drink in total?
    13·1 answer
  • Factor the trinomial: 5x^2-2x-7
    7·1 answer
  • 7.4 multiply by what is equal to = 24
    11·1 answer
  • -11 &lt;2k +9 313<br> I need help
    9·1 answer
  • 7.) For every 6 cans Oliver collected for
    8·1 answer
  • The graph below represents the distance of a dog from a trainer after a command is given.
    14·1 answer
  • What is the length of y in this picture? <br> X <br> 45° <br> 5
    8·1 answer
  • Directions: Simplify and write in standard form, letting f(x) = x2 + 2x + 1, g(x) = 3 - 2x,
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!