Billy and Sam started with the same number of baseball cards in their collections. Billy collected 3 cards per week and now has 29 cards. Sam collected 2 cards per week and now has 20 cards. Let x represent the number of cards they began with, and let y represnt the number of weeks. Which system of equations represents this situation?

i think it is this.

1. 2/50

2.  1/10

Answer:

5.7

Step-by-step explanation:

brainly pls :]

Answer: 7/10, 7/10 and 3/10.

Step-by-step explanation:

7/10 = Between 1 and 10, the multiples of three are 3, 6, and 9. So the amount favourable outcomes is the total minus the multiples, 10-3 = 7. So 7/10.

7/10 = Between 1 and 10, the multiples of 2 are 2, 4, 6, 8, and 10. The multiples of 3 are 3, 6 and 9. That, gives 7 favourable outcomes (6 is a multiple of both but counted once) giving the probability of 7/10.

3/10 = The favourable outcome is 8 and above, so: 8, 9 and 10. There are 3 favourable outcomes which gives the probability of 3/10.

Answer:

x = 5

Step-by-step explanation:

4x + 2y + z = 24

2x - 3y - z = 2

5x + y + 2z = 21

-----------------

Eliminate z

Add the 1st and 2nd eqn

4x + 2y + z = 24

2x - 3y - z = 2

----------------

6x - 1y = 26 eqn A

Multiply the 2nd eqn by 2, then add the 3rd.

4x - 6y -2z = 4

5x + y + 2z = 21

----------------

9x - 5y = 25 eqn B

---------------

Now you have 2 eqns in 2 unknowns, not 3.

Multiply eqn A by 5 and subtract eqn B.

30x - 5y = 130 eqn A times 5

9x - 5y = 25 eqn B

-------------

21x = 105

x = 5

Answer:

x = 5 is the answer

Step-by-step explanation:

Answer:

No, because 2^28 is equal to 2x2 28 times, not 28x2. This means that the answer will be 268435456.  

Step-by-step explanation:

Answer above

If this has helped you please mark as brainliest

Answer:

no, exponents are how many times the base is used, it would be 2×2×2... so on until there are 28 2s

Answer:

do ur assignment by downloading the given document and upload it there..

Answer:

1) = 2hrs and 30mins

2) = 130miles

Step-by-step explanation:

1) 60mi/hr, total driven 150miles

so at 120miles thats 2 hours. 30 miles is 30 minutes

60+60+30=150miles

2) 40miles/hr you drove 2 hours at 40 miles

40+40 =80miles

50miles/hr you drove 1 hour st 50 miles

40+40+50 = 130miles

Answer: 1)  2.5 hours,  2)  130 miles

Step-by-step explanation:

To solve both of these problems, let us remember the formula:

    Distance = (speed) × (time)

1)  Plug in the numbers into the formula:

    150miles = (30miles/hour) × (time)

Divide both sides by 30miles/hour to solve for time:

    150miles/(30miles/hour) = time

Simplify:

    2.5hours = time

2)  Susan's driving is broken into two parts with different speeds and time.

Solve the distance for first drive by plugging numbers into formula:

    Distance = (40miles/hour) × (2hours)

Multiply:

    Distance of first drive = 80miles

Solve for distance of second drive:

    Distance = (50miles/hour) × (1hour)

Multiply:

    Distance of second drive = 50miles

Add distance of first drive and second drive:

    80miles + 50miles = 130miles

The caller number will receive both would be 48.

The Least common multiple of two or more numbers are the smallest number that is multiple of two or more numbers.

Given that;

On a radio morning show, every 12th caller receives concert tickets, and every 16th caller receives an autographed album.

Now,

Since, On a radio morning show, every 12th caller receives concert tickets, and every 16th caller receives an autographed album.

Hence, The common caller number is find by calculating the LCM of 12 and 16.

⇒ LCM of 12 and 16 = 48

Thus, The common caller number which receive both will be 48.

Learn more about the Least common multiple visit:

https://brainly.com/question/10749076

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Answer:

Step-by-step explanation:

Each package holds 24 so you would use the equation n = 24p

which means the number of lightbulbs = 24 times the number of packages

so 1 package = 24

3 packages = 72

10 packages = 240

oh and part B is B

Answer:

3. 37.5

4. 60

5. 32

Step-by-step explanation:

Mark me brainliest tho 2

Answer:

3. A=37.5ft

4.A=60in

5.A=32in

Hope I helped you pls mark brainliest if you can

Answer:

You would use scientific notation for an easier way to simplify a very complex equation, and use standard form whenever you are showing the answer.

Step-by-step explanation:

Answer:

326

Step-by-step explanation:

Add a nails: 65+40+45+176= The answer

660

Step-by-step explanation:

John

65s (small)

40m (medium)

45 L (large)

Susan

x small

176m

y large

From question:

Susan has a box of nails that has the same proportion of small, medium, and large nails as John's box =Meaning same ratio

John ratio. Susan

s : m : L s : m : L

65 : 40 : 45. 13 : 8 : 9

13 : 8 : 9. x : 176 : y

x = (176/8)*13

=286

y = (176/8) * 9

= 198

Total number of nails in Susan box

= x + 176 + y

= 286 + 176 + 198

=660

Answer: acute for #1 obtuse for #2 and isosceles for #3

Step-by-step explanation:

The greatest possible length of each piece is 2 cm.

The highest common factor is defined as the set of numbers with the highest common multiple. The highest positive integer with more than one factor in the set is HCF.

Three ropes of length 2 m 84 cm, 4 m 26 cm, and 7 m 10 cm are to be cut into small pieces of equal length.

We have been given the lengths of the ropes as

2 m 84 cm = 284cm

4 m 26 cm = 426cm

7 m 10 cm= 710 cm

We have to determine the greatest possible length of each equal part So that there is no wastage

So the greatest possible length of each piece will be the HCF of the length of the ropes.

⇒ 284 = 2× 142

⇒ 426 = 2 × 213

⇒ 710 = 2 × 355

Hence, the HCF of the 284, 426, and 710 is 2.

Therefore, the greatest possible length of each piece is 2 cm.

Learn more about the highest common factor here:

https://brainly.in/question/3803222

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i dont see anything, what do you need help with?

Answer:

Step-by-step explanation:

Circumstance of a curcle C=2*pi*r

So if you want to find r from this equation you come up with r=C/2*pi. That's exactly what they give you in the problem.

Now you know that C= 26.69 so replacing what we know in the formula r=C/2*pi you get

r=26.69/2*3.14 =4.25

So looking at the figure you they said r=4.25

That means that the figure is has to be a circle.

Hope that makes sense.

Answer:

32

Step-by-step explanation:

1 hour = 60 minutes

Thus, 30 minutes if half an hour.

The worker can load 4 pallets every 30 minutes.

30*2=60

4*2=8

So the worker can load 8 pallets every 60 minutes, or every hour.

8*4=32

So, a worker can load 32 pallets in 4 hours.

BONUS: The worker can load 1 pallet every 7.5 minute

Brainliest pls

Answer:

18>x

Step-by-step explanation:

Answer:

I don't know but I think it is 18 < x.

Step-by-step explanation:

I hope this answers your question :)

Answer:

c

Step-by-step explanation:

Answer:

7 is the radius

14 is the diameter

44 is the circumference

Step-by-step explanation:

7 is the smallest number of them all so it's the radius. The diameter is double of a radius so 14 is the diameter and finally 44 is the circumference :)

Answer:

Step-by-step explanation:

go to quiziz just replace the last part with rocks

(answers for quiziz)

Answer:

C.

Step-by-step explanation:

6 to the second power is 36. 6 x 6 is 36. I'm really bad at explaining so I'm sorry if you don't understand.

Answer:

Rational

Step-by-step explanation:

Because it gives whole number which is 11

Answer:

Rational

Step-by-step explanation: