Harriet works at the Mint, where new coins are made. Old and fake coins are also destroyed there. Harriet has 10 bags of $1 coins. All 10 bags contain the same number of coins. Harriet knows that nine bags contain only good coins and that one bag contains only fake coins. The fake coins are all about 0.5 gram short. Harriet has forgotten which bag contains the fake coins.
Harriet has a set of scales for weighing like the ones in the illustration. What is the lowest number of times she can weigh bags on the scales in order to find the bag of fake coins?

Answers

Answer 1

Answer:

3 times

Step-by-step explanation:

She would have to weigh the fake coins and another bag of real coins to spot a difference, and then she would need to check another bag to see which was correct. Maybe thats right.


Related Questions

Please help! Due tonight

Answers

Answer:

what grade you in

this looks like 4th grade

You can send and receive text messages on your cellphone for $0.12 a message your cellphone provider also offers a plan for an unlimited number of messages for $4 per month. How many text messages must you send and receive a month to make the unlimited plan a better buy?

Answers

Answer:

33.333

Step-by-step explanation:

The mapping below shows y as a function fo x?

True
False

Answers

Answer:

False

Step-by-step explanation:

x is the input and y is the output

the same input cannot have more than 1 output

-8 has 1 output

5 has 1 output

but "1" has 2 outputs

A line that passes through ( 3, 1) and 0,3 in y= mx+ b form

Answers

Answer:

y = -0.7x + 3

Step-by-step explanation:

I just used a math app called geo-gebra. Put the points in made a line and bam an answer. Hope this helps!

Five more than a number g is six less than twice a number h. Solve for g.

Answers

Answer:

g=2h-11

Step-by-step explanation:

You need to make the two sides equal, so add  6  to the left side:

[tex](g+5)+6=2h[/tex]

Solve for g

[tex]g+5+6=2h\\\\g+11=2h[/tex]

Isolate g

[tex]g=2h-11[/tex]

What is the value of 5(a-4b) when a= -7 and b= 0.25

Answers

Answer:

-40

Step-by-step explanation:

5(-7-4[0.25])

5(-7-1)

-35-5

-40

Kylie's family took a road trip to the Grand Canyon, Kylie fell asleep 42% of the way through the trip. If the total length of the trip was 600 miles, how many miles had they travelled when Kylie fell asleep?​

Answers

252 miles. Because just do 42% of 600.

What is the slope of the line passing through (1, 2) and (3, 8)?

A. slope = 7
B. slope = 1/7
C. slope = 3
D. slope = 1/3

Answers

Answer:

slope is 3

Step-by-step explanation:

remember (y2-y1)/(x2-x1)? thats pretty easy bruh.

Please help me I’ll give brainliest

Answers

Answer:

x<3

Step-by-step explanation:

Is not a negative so it wont be on the left

Find the perimeter of the polygon with the vertices Q( – 3, 2), R(1, 2), S(1, - 2), and T (-3, -2).
, -2)

Answers

Answer:

Step-by-step explanation:

Please help i’ve been here for hours so can someone please tell me what to put here

Answers

Answer:

If you divide the amount $60.20 (60.20) by 5 (amount of hours), you can find out the amount of money Andrew gets paid in dollars per hour. The quotient is 12.04, $12.04. Therefore, Andrew is payed $12.04 per hour.

Step-by-step explanation:

HOPE THIS HELPS

HAVE A GOOD DAY

STAY SAFE BYEE

a=5h+60.20 i think 5 being the hours so if u plug in 2 for h you’d get 10 hours then you’d double 60.20

Solve the inequality 3(x - 2) + 1 = x + 2(x + 2).
A XS4
B. XX-5
C. no solution
D. all real numbers

Answers

Answer:

No solution

Step-by-step explanation:

calculate the sum) 3x-5+x+2(x+2)

distribute 2 through the parentheses) 3x-5=x+2x+4

calculate the like terms) 3x-5=3x+4

calculate equal terms on both sides of the equation) -5 = 4

-5 = 4 meaning that the statement is false!

What fraction is the same as 9/12

Answers

Answer:

3/4

Step-by-step explanation:

If you divide both the numerator and the denominator by 3 you'll get 3 over 4.

how to do this question plz ​

Answers

Step-by-step explanation:

Volume of a cube is the side length cubed.

V = s³

27 cm³ = x³

x = 3 cm

Please help anyone
Linear function f is shown in the graph. Write the slope-intercept form of the equation representing this function.

Answers

Y=3x-7 more characters because the app won’t let me put only the answer

The equation representing the function f(x) -

y = 4x - 8

We have a linear function f(x) as shown in the graph.

We have to determine the slope-intercept form of the equation representing this function.

What is the Slope - intercept form of the equation of a straight line ?

The Slope - intercept form of the equation of a straight line is as follows -

y = mx + c

where -

m - slope of line

c - intercept of line on y - axis.

According to the question, we have -

c = - 8 = intercept of line on y - axes.

Intercepting coordinates on  y - axes = (0, -8).

Intercepting coordinates on x - axes = (2, 0).

Slope = m = [tex]\frac{-8-0}{-2 -0}[/tex] = 4

Therefore, the equation representing the function f(x) -

y = 4x - 8.

To solve more questions on Straight lines, visit the link below -

brainly.com/question/28091452

#SPJ6

Please help!!! Tony wants to build a fence around his rectangular garden that has
dimensions 20 ft by 35 ft. His fence posts need to be placed 5 ft apart.
How many posts will Tony need to buy?
I

Answers

Answer:

22 posts

Step-by-step explanation:

on the side of 20 feet you have 5 fence posts each in including one on each of the corners. On the 35 feet side you would have 8 including the corners, but since the corner posts are done its 6 on each 35 feet side. So you get 5+5+6+6=22

Evaluate the expression when c=5 and d=6.
7c+d.​

Answers

Answer:

41

Step-by-step explanation:

Step 1:

7c + d          Equation

Step 2:

7 ( 5 ) + 6      Input c and d

Step 3:

35 + 6       Multiply

Answer:

41          Add

Hope This Helps :)

u would have to plug in the numbers meaning

C=5 & D=6

so u would when they ask 7C+D u have to add parentheses for the numbers that are getting plugged in

7(5) + (6) = 41

Select all terms that are like terms 5 yx2 -8 x2 1.25 x2 1/2 x2 -3.4 x3 4 x 5 3/8

Answers

i believe it would be 5 yx2-8 and 1.25 but i may be wrong

Question 3. The diameter M of a medium coffee CUP at a coffee shop follows the Normal distribution with a mean of 2.96 inches and a standard deviation of 0.02 inches. The diameter L of a medium coffee cup LID at the coffee shop follows the Normal distribution with a mean of 3.01 inches and standard deviation of 0.01 inches. Assume that M and L are independent random variables. Let D = L-M be the difference between the lid's diameter.
What is the mean of D? Use 2 places after the decimal.
What is the standard deviation of D? Use 4 places after the decimal.
For a lid to fit on the cup, the difference, D, needs to be less than .08 inches. Find the probability that a randomly select lid will fit on the medium coffee cup. Use 3 places after the decimal.

Answers

Answer:

The diameter M of a medium coffee CUP at a coffee shop follows the Normal distribution with a mean of 2.96 inches and a standard ... Assume that M and L are independent random variables. ... Andre ran 2 kilometers in 15 minutes, and Jada ran 3 kilometers in 20 minutes.

you either add all of the math numbers together or you either multiply all of the math numbers together cuz

Step-by-step explanation:

Simplify 1/4 (15-6) + 3^3 divided by 12

Answers

Answer:

Step-by-step explanation:

Use PEDMAS  method

P - Parenthesis

E - Exponents

D - Division

M - Multiplication

A- Addition

S -Subtraction

[tex]\frac{1}{4}(15-6) + 3^{3}[/tex] ÷ 12  = [tex]\frac{1}{4}*9+3^{3}[/tex] ÷ 12     {Operation inside parenthesis}

                              [tex]= \frac{1}{4}*9+27[/tex]÷ 12   {Exponents}

                             [tex]= \frac{9}{4} + \frac{27}{12}\\\\\\= \frac{9*3}{4*3} + \frac{27}{12} \\\\\\= \frac{27}{12} + \frac{27}{12}\\\\\\=\frac{27+27}{12}\\\\\\=\frac{54}{12}\\\\=\frac{9}{2}\\\\= 4\frac{1}{2}[/tex]  

Answer:

the answer is c. 4 1/2

Step-by-step explanation:

I guessed c got it right

Help Me pleasee i dont understand

Answers

To find slope on the graph you use rise/run like #1 you go up 3 and across 2 so it’s 3/2 and positive because the line is going up if it were going going down it’s a negative slope…now to find it with the formula it says it right there y2-y1 over x2-x1 for example 14-10 over -7-8 and simplify if you can…on the table you will do the same as you did with the formula on #15 you will use the formula like this 2-5 over -2+3 because we all know when you subtract a negative with a negative you’re basically adding them together

Which statement or statements accurately describe a good way to avoid excessive service fees?

1. Try to deposit money in large batches rather than in small amounts.

II. Try to limit the number of withdrawals you make from out-of-network ATMs.

III. Try to avoid using your debit card online.

a. I and II

b. ll only

c. Ill only

d. I and III

Answers

Answer:

b. ll only

Explanation:

Remember, service fees often refer to an amount deducted to pay for the cost of providing particular services, such as ATM service charges, etc.

We can this conclusion because if one decides to deposit money in large batches rather than in small amounts; they will be directly subjecting themselves to excessive charges. Consider, most financial institutions often charge higher fees for larger deposits.

Also, if one decides to avoid using your debit card online they will tend to spend more using traditional cash methods which require increasing the number of one's ATM withdrawal.

However, by trying to limit the number of withdrawals you make from out-of-network ATMs, one saves him or herself of excessive service fees.

The editor of a textbook publishing company is deciding whether to publish a proposed textbook. Information on previous textbooks published show that 20 %20% are huge​ successes, 30 %30% are modest​ successes, 30 %30% break​ even, and 20 %20% are losers. Before a decision is​ made, the book will be reviewed. In the​ past, 99 %99% of the huge successes received favorable​ reviews, 60 %60% of the moderate successes received favorable​ reviews, 40 %40% of the​ break-even books received favorable​ reviews, and 30 %30% of the losers received favorable reviews. If the textbook receives a favorable​ review, what is the probability that it will be huge​ success?

Answers

Answer:

[tex]Probability = 0.198[/tex]

Step-by-step explanation:

Given

Publish

[tex]Huge\ Success = 20\%[/tex]

[tex]Modest\ Success = 30\%[/tex]

[tex]Break\ Even = 30\%[/tex]

[tex]Losers = 20\%[/tex]

Favorable Reviews:

[tex]Huge\ Success = 99\%[/tex]

[tex]Modest\ Success = 60\%[/tex]

[tex]Break\ Even = 40\%[/tex]

[tex]Losers = 30\%[/tex]

Required

Determine the probability that a textbook is huge success and favorable

To do this, we simply multiply the probability of a textbook being huge success and being favorably reviewed. as follows;

[tex]Probability = 20\% * 99\%[/tex]

[tex]Probability = 0.198[/tex]

Which of the following sets represents a function?
O [(1, 2), (3, 2), (5, 7))
O [(3,5),(-1,7), (3,9)}
O [(1, 2), (1,4), (1, 6)

Answers

Answer:

(1, 2), (1,4), (1, 6)

Step-by-step explanation:

They're adding the Y-axis

2/3x = 24 what does x equal?

Answers

Answer:

x=36

Step-by-step explanation:

X equals to 36
To Step per step look at the picture

Find the value of x and y given that p//q. Type answers alphabetically, and separate by a comma and a space

Answers

Answer:

39

Step-by-step explanation:

What’s 19,975 divided by 25 show your work

Answers

the answer to the question is 799

Question 2
Solve for y. Write your answer in slope-intercept form y= mx + b.
6x+2y = -10
Question 3

Answers

Answer:

y=-3x-5

Step-by-step explanation:

6x+2y=-10

2y = -6x-10 (you need to isolate the y and so i took 6x and subtracted it from both sides)

y = -6/2x-10/2 ( dont feel like explaining)

divide them (-6/2 and -10/2) to get

y=-3x-5

Hope i helped

5. Express 12⁄16 in quarters.
a. 1⁄4
b. 1⁄3
c. 2⁄4
d. 3⁄4

Answers

Answer:

D

Step-by-step explanation:

Divide 16 by 4 to get the denominator of 4. Then divide 12 by 4 to get three. Therefore your answer is D. 3/4

Answer:

3/4

Step-by-step explanation:

All I did was divide the top and bottom number by 4. 12/4= 3 and 16/4=4

Help me please I don’t get it I put false and my teacher said it’s wrong

Answers

ur teacher is wrong im in algebra 2 an this is correct

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