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
victus00 [196]
3 years ago
5

Roberta is thinking about joining the food co-op store. If she pays $10.00 to join, she will get 10% off on all the groceries sh

e buys there.How much must she buy before her savings equal her membership fee?
Mathematics
1 answer:
IceJOKER [234]3 years ago
8 0

$100 worth of groceries.

You might be interested in
Ví dụ 1.5. Một người đi mua hàng 3 lần. Xác suất lần đầu mua được hàng tốt là 0,7.
vodka [1.7K]

Answer:

a) 0.50575,

b) 0.042

Step-by-step explanation:

Example 1.5. A person goes shopping 3 times. The probability of buying a good product for the first time is 0.7.

If the first time you can buy good products, the next time you can buy good products is 0.85;  (I interpret this as, if you buy a good product, then the next time you buy a good product is 0.85).

And if the last time I bought a bad product, the next time I bought a good one is  0.6. Calculate the probability that:

a) All three times the person bought good goods.

P(Good on 1st shopping event AND Good on 2nd shopping event AND Good on 3rd shopping event) =

P(Good on 1st shopping event) *P(Good on 2nd shopping event | Good on 1st shopping event) * P(Good on 3rd shopping event | 1st and 2nd shopping events yield Good) =

(0.7)(0.85)(0.85) =

0.50575      

b) Only the second time that person buys a bad product.

P(Good on 1st shopping event AND Bad on 2nd shopping event AND Good on 3rd shopping event) =

P(Good on 1st shopping event) *P(Bad on 2nd shopping event | Good on 1st shopping event) * P(Good on 3rd shopping event | 1st is Good and 2nd is Bad shopping events) =

(0.7)(1-0.85)(1-0.6) =

(0.7)(0.15)(0.4) =

0.042

5 0
3 years ago
Sarah has gone to work for 60 days. On 39 of those days, she arrived at work before 8:30 A.M. On the rest of the days she arrive
IgorC [24]
There is a 35%  chance she will arrive after 8:30AM
4 0
3 years ago
Write an equation of the line, in slope intercept form.
DedPeter [7]

Answer:

y = -3x + 6

Step-by-step explanation:

Slope-intercept form:

y = mx + b

m (slope) = \frac{-6}{2} or -3

b (y-intercept, or where the line crosses the y-axis) = 6

y = -3x + 6

4 0
2 years ago
Read 2 more answers
Sum and difference of 5+2.3
professor190 [17]

Answer:

sum: 7.3 difference:2.7

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Simplify <br> x^2/3 / x^-4/3
Helga [31]
I think it would be too confusing to type but it would look like this

3 0
3 years ago
Other questions:
  • PLEASE HELP ME ANYONE PLEASE HELP I HAVE 15 MI NUTES
    15·1 answer
  • Is an angle that is greater than 90 degrees is acute True or False
    11·2 answers
  • Condensing Logarithmic Expression In Exercise,use the properties of logarithms to rewrite the expression as the logarithm of a s
    11·1 answer
  • What is seven and one fifth minus four and five eighths?<br> 01 7/8<br> 2 23/40<br> 3 3/8<br> 4 1/4
    10·2 answers
  • What is the value of X
    15·1 answer
  • What’s <br> the next perfect square after 25.*<br> Your answer
    6·2 answers
  • Is (-3.4) a rational number? And why is (-3.4) a rational number?
    10·1 answer
  • Arrangement the following in ascending order ; -5/7, -3/14, 4/7, -6/7​
    7·2 answers
  • Help! I have no idea what to do! Will award brainliest!
    8·2 answers
  • What is 372.7332 rounded to the nearest thousandth?<br><br> Please help rn I have until 3pm
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!