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
Basile [38]
3 years ago
11

The Smiths are sending out a batch of holiday cards. Emily signed 2/5 of the cards. Then Josh signed 1/9 of the remaining cards.

Tatiana signed 20% of what Josh had left. If there were 75 cards in all, how many cards are left to be signed?
Mathematics
1 answer:
Ivanshal [37]3 years ago
3 0
First off who needs 75 cards?? Emily signed 2/5 or .4 of 75 so EMILY SIGNED 30 CARDS (caps helps me stay organized) Josh, that slacker, signed 1/9 or .11(repeating) of the remaining 45 cards so JOSH SIGNED 5 CARDS there are 40 unsigned cards and Tatiana signed 2/10 or .2 of them so TATIANA SIGNED 8 CARDS so 40-8=32 there are 32 cards left
You might be interested in
Divide the number by 3 and adds 2
anzhelika [568]

aiejrhejekwhvqiekwnww

8 0
3 years ago
pens are on sale for $0.79 each. Tamira is going to buy as many pens as she can for $13.50 for the upcoming school year. how man
Simora [160]

17 pens total. 13.50 divided by $0.70 equal 17.0886076 but you can’t but that much of a pen. Therefore; 17 is the answer.

8 0
3 years ago
Read 2 more answers
kelly can paint her father's shed in five hours, working alone. working together, she and her sister sharon can complete the tas
natali 33 [55]

According to the solving the correct expression of the given data is:

S = 5T/(T - 5).

<h3>What does a math expression mean?</h3>

At least two numbers as well as variables, one or more arithmetic operations, and a statement are all required components of a mathematical expression. With the help of this mathematical operation, you can multiply, divide, add, or subtract. A sentence has the following structure: (Number or Variable, Math Operator, Number or Variable) is an expression.

<h3>How does a term come to mind?</h3>

The evaluation of each algebraic expression requires the substitution of one integer for each variable and the execution of the arithmetic operations. The variable x in the preceding example has the value of 6 since 6 plus 6 = 12. Our variables' values can be substituted for the original variables if we are aware of them, allowing us to evaluate the expression with those values instead of the original ones.

<h3>According to the given information:</h3>

Let S be the number of hours it would take Sharon to paint the shed alone.

Kelly alone can paint the shed in T hours,

so she can paint (1/T) of a shed per hour.

Sharon alone can paint (1/S) shed per hour, so, working together.

They can Paint:

(1/T)+(1/S)

it takes them five hours to paint the shed together, they can paint (1/5) shed per hour.

$\frac{1}{S}+\frac{1}{T}=\frac{1}{5}$\\

$\frac{1}{S}+\frac{1}{T}-\frac{1}{T}\\\\=\frac{1}{5}-\frac{1}{T}$

After simplifying this we get:

(T - 5)/5T

the reciprocal of both expressions:

S = 5T/(T - 5)

According to the solving the correct expression of the given data is:

S = 5T/(T - 5).

To know more about arithmetic operation visit:

brainly.com/question/25834626

#SPJ1

7 0
1 year ago
A published report of a repeated-measures research study includes the following description of the statistical analysis. "The re
balandron [24]

Answer:

3 treatment conditions were compared in the study.

14 individuals participated in the study.

Step-by-step explanation:

Consider the provided information.

Part (A) How many treatment conditions were compared in the study?

There are two sets of degrees of freedom; one for the numerator and one for the denominator.

F ratio is defined as: df=(df_{\text{Between treatment}}, df_{error})

The formula for between treatment is: df_{\text{Between treatment}}=k-1

Substitute df_{\text{Between treatment}}=2 in above formula.

2=k-1

k=3

Therefore, 3 treatment conditions were compared in the study.

Part (B) How many individuals participated in the study?

The error degree of freedom is df_{error}=(k-1)(n-1)

Substitute df_{error}=26 and k=3 in above formula.

26=(3-1)(n-1)

26=2(n-1)

14=n

Hence, 14 individuals participated in the study.

3 0
3 years ago
5/7x =5 <br> Pls pls pls someone help me on this I tried so many times and I can’t figure this out.
Talja [164]

Step-by-step explanation:

\frac{5}{7} x = 5 \\ x =  \frac{5 \times 7}{5}  \\ x = 7

value of x is 7

hope this answer helps you dear....take care!

8 0
3 years ago
Read 2 more answers
Other questions:
  • Solve the linear system of equations using addition. Graph the equations to verify your solution.
    10·1 answer
  • For a particular type of motion, the velocity is zero but the speed is a nonzero quantity. Which statement can you make about th
    9·2 answers
  • 3.
    13·1 answer
  • A teacher is making identical activity packet using 92 Kranz and 23 sheets of paper what is the greatest number of packets the t
    7·1 answer
  • Flora has 22 vases. Each vase has 6 tulips and 9 carnations. Which expressions correctly show how to find the total number of fl
    8·2 answers
  • marco has a piece of wood that measures 9 x 1/10 6 x 1/100 4 x 1/1000 meter. how can this measurement be written as a decimal?
    14·1 answer
  • Help plz the faster the better anyone :(
    9·1 answer
  • Help me with this please
    10·1 answer
  • To find the quotient 2/5 divided by 1/4 multiply
    5·2 answers
  • ANSWER PLEASEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!