Complete question is;
A cash register contains coins. 10 pennies, 11 nickels, 13 dimes, and 6 quarters. A cashier will randomly choose two coins one at a time without replacement. What is the probability that the cashier will choose a penny first, followed by a dime?
Answer:
1/12
Step-by-step explanation:
We are told there are 10 pennies, 11 nickels, 13 dimes, and 6 quarters.
Thus total number of coins = 10 + 11 + 13 + 6 = 40 coins
Probability of picking a penny first is;
10/40 = 1/4
After which we will have 39 coins left.
Probability of a dime after that will be 13/39 = 1/3
Thus,probability of picking a penny first then a dime will be; ¼ × ⅓ = 1/12
Which inequality represents all values of x for which the quotient below is
defined?
im not rlly understanding how to do this
Answer:
its D
Step-by-step explanation:
I just took the test and it was right
WILL GIVE BRAINLIEST IF RIGHT
Answer:
Step-by-step explanation:
2x^2+14x=520
x^2+7x-260
x(x+7)=260
so x=13
13x20=260
second
x^2+10x=875
x(x+10)=875
x= 25
25x35=875
Shawn bought $45.00 worth of pencils from Office Max. If the sales tax is 4%, what was the amount of tax she had to pay?
Answer:
46.80
Step-by-step explanation:
because 45/4%=1.80 and 45+1.80=46.80
5x-3y = 2x -5 is an expression.
true or false
Answer:
no
Step-by-step explanation:
It has an equation mark so no.
Solve the system by graphing. Check your solution.
y= 3x
y= - 4x + 7
0
Use the graphing tool to graph the system.
Step-by-step explanation:
the answer from the graph is:
(1 , 3)
what does y 4/3x+2 equal too?
2/3x(2x+3)
Explanation: 2/3x2(2x+3)
factor out 2/3 from the expression
Nothing it stays the same.
Step-by-step explanation:
2(n-4) = 16 solve for n
Answer:
answer is 12
Step-by-step explanation:
2n-8=16
2n=24
n=12
Answer:
x=12
Step-by-step explanation:
divide both sides by 2
16/2=8
x-4=8
x=12
Heyy help please!! And explain, ty!
Answer:
9.2 x 9.2 x 9.2 (778.688)
Step-by-step explanation:
When you are looking at a cube or 3D figure, most of the time you will have to multiply by the base, length, and height. Since this is a cube, all the sides are the same, so the base, length, and height are also the same. First multiply 9.2 x 9.2 to get 84.64. 84.64 (bxl) now must be multiplied by the height. 84.64 x 9.2 = 778.688.
Hi can you help please
Answer:
x ≤ -4
Step-by-step explanation:
The dot/filled-in circle is on -4, so that's where we get that part of the inequalityThe line is going to the left of -4 (going towards the negatives), so x is less than -4The dot/circle is filled in, which means it is an "or equal to" symbol (in our case it's less than or equal to)Put it all together: x ≤ -4I hope this helps!
Help me find the answer
Answer:
54
can i get brainly doe?
Can someone help me??
Answer:
12.8
Step-by-step explanation:
Tan 52° = x/10
x = Tan 52° * 10
x = 1.2799 × 10
x = 12.799
Rounding to the nearest tenth, we have
x = 12.8
Answer:
Step-by-step explanation:
Let's use 52 as our degree.
The adjacent side to 52 is x, and the opposite is 10.
Since it's gonna be opposite over adjacent, we need to use the Tangent ratio.
(tan)
Now let's start our calculations.
Tan52 = x/10
(Tan52)(10) = x
x = 12.79941532
Let's round that to the nearest tenth place.
x = 12.8 units
(Don't forget the degree sign for 52 in Tan52!!!)
Hope that helped! :)
3. Jasper estimates her car expenses at about $7 650.00 per year. How much
should Jasper budget monthly for car expenses?
Answer:
637.50
Step-by-step explanation:
7,650.00 per year divided by 12 months equals 637.50
Diego has 27 ounces of juice. He pours equal amounts for each of his 3 friends and has 6 ounces left for himself. A. Find the solution to the equation you chose for the story above. B. Explain what the solution means in the context of the story.
Answer:
3x + 6 =27
Step-by-step explanation:
A. The solution is 7! First I Subtracted 6 from both sides of the equation, Then I Divided both sides of the equation by the same term. Then I got "7" from doing the following.
B. The solution is the x in the answer which is the amount of juice he poured.
"Diego has 27 ounces of juice. He pours equal amounts for each of his 3 friends and has 6 ounces left for himself"
tell me if i did something wrong
PLS HELP MEH PLLLSSSSSSSSSS
Write an inequality and solve each problem.
William fills 1/3 of a water bottle in 1/15 of a minute. How much time will it take him to fill the bottle?
Answer:
1/5 minutes
Step-by-step explanation:
✓Let the X= a bottle of water
✓Let y= number of minutes it will takes to fill a bottle
We can express the given statement as
1/3 X = 1/15 mins
X= ymins
If we cross multiply the two expression above we have
X/15 mins= X/3 mins * ymins
15 mins * X * y mins= 3X
Divide both sides by X
15 mins * y= 3
Make "y" the subject of the formula
y= 3/15 mins
Divide both numerator and denominator by factor of 3.
y= 1/5 minutes
Hence, the time it will take him to fill the bottle is 1/5 minutes
A=5. Move the dot to -(-A) on the number line
78% of 50 is what number
Answer:n I got this 64.102564102664.1025641026
Step-by-step explanation:
Answer:
39
Step-by-step explanation:
So do this equation in your head.
Or Write It Down.
50 x 0.78
And Multiply it from there.
So I hope it helps.
Answer needed immediately please help!
Answer: 3
Step-by-step explanation: When you solve for x you get 2 so when you put that into the equation (2+1) you get 3. You solve for x but solving this equation (x+5) = (x+1) Hope this helps :)
The figure shown is a semicircle. Find its area. Round your solution to 2 decimal places.
Answer:
12.5 pie , 39.25 using pie=3.14, and 39.28 to be exact
Step-by-step explanation:
BTW n=pie
10in= Diameter
5in=Radius
Area=n5^2
= 25n/2
=12.5n
12.5 times 3.14= 39.25
22/7 times 12.5= 39.2857143
Point D is the in center of triangle ABC. Write an expression for the length x in terms of the three side lengths AB, AC, BC.
Hint: Use areas of triangles...A=1/2bh
Answer:
[tex] \underline{\boxed{x = \frac{A_r}{AC}}}[/tex]
Step-by-step explanation:
[tex]let \: the \: area \: be \to \: A_r \\ since \: the \: base =AC \\ then \: the \: height = AB \\ but \: AB = 2x \\ hence : the \: area \: A_r= \frac{1}{2} AC(2x) \\ (2x)AC = 2A_r\\ x = \frac{2(A_r)}{2(AC)} \\ \boxed{x = \frac{A_r}{AC}}[/tex]
Help!!!!!!!!!!!!!!!!!!!!!!!!!!ASAP
I need help
Element X is a radioactive isotope such that every 27 years, its mass decreases by half. Given that the initial mass of a sample of Element X is 7900 grams, how much of the element would remain after 12 years, to the nearest whole number?
Answer:
About 5, 805 grams remaining.
Step-by-step explanation:
We are given that every 27 years, the mass of Element X decreases by half.
We can write an exponential function to model the situation. The standard exponential function is given by:
[tex]\displaystyle f(t)=a(r)^t[/tex]
Where a is the initial amount, r is the rate, and t is the time, in this case years.
Since it is halved, our rate r is 1/2.
Since it is halved for every 27 years, for t, it will be t/27.
Therefore, our function is:
[tex]\displaystyle f(t)=a\Big(\frac{1}{2}\Big)^{t/27}[/tex]
Our initial sample is 7,900 grams. Hence, a = 7900:
[tex]\displaystyle f(t)=7900\Big(\frac{1}{2}\Big)^{t/27}[/tex]
We want to find the remaining amount after 12 years. So, t = 12. Use a calculator:
[tex]\displaystyle f(12)=7900\Big(\frac{1}{2}\Big)^{12/27}\approx5805\text{ grams}[/tex]
After 12 years, there will be about 5805 grams remaining.
Answer:
About 5, 805 grams remaining.
Step-by-step explanation:
We are given that every 27 years, the mass of Element X decreases by half.
We can write an exponential function to model the situation. The standard exponential function is given by:
→ f(t)=a(r)^t
Where a is the initial amount, r is the rate, and t is the time, in this case years.
Since it is halved, our rate r is 1/2.
Since it is halved for every 27 years, for t, it will be t/27.
Therefore, our function is:
→ f(t)=a(1/2)^t/27
Our initial sample is 7,900 grams. Hence, a = 7900:
→ f(t)=7900(1/2)^t/27
We want to find the remaining amount after 12 years. So, t = 12. Use a calculator:
→ f(12)=7900(1/2)^12/27 ≈5805 grams
After 12 years, there will be about 5805 grams remaining.
please help :( please !
Answer:
8k+5
Step-by-step explanation:
1/2 6k = 3k
1/2 of 10 = 5
3k+5+5k = 8k+5
all you need is in the photo
please answer fast pleaseee
please do the step by step
Answer:
1.601×10^9
Step-by-step explanation:
800.5 × 2×10^6
1601×10^6
1.601×10^9
Jeremy ran 4 kilometers in a race. How many meters did he run?
Answer:
4000m
1k =1000m
Step-by-step explanation:
Is the point (83, 70) a solution to 52x - 35y = 1,866?
Answer:
I do not know
Step-by-step explanation:
if you are considering banning me plz do
Which expression is equivalent to
-4(h - 2) + 20
a. -4h + 12
b. -4h + 18
c. -4h + 28
d. -4h + 22
Answer:
C.
Step-by-step explanation:
it would simplify to -4h+8+20
then if you gather like terms it would be -4h+28
Find the value of the variables.
c
60"
309
8
b
b =
CE
12
HELP :(
Answer:
90
Step-by-step explanation:
Help me please ASAP !!
Answer:
60
Step-by-step explanation:
A grocery store sells tangerines in 2/5 kg bags. A customer bought 4 kg of tangerines for a school party.
How many bags did they buy?
