Mathematics Middle School

Isaac and Paul shared some baseball cards in the ratio 2:5. If Paul gave 30 cards to Isaac, they would have the same number of cards. How many cards does Isaac have in the beginning?

PLS SHOW YOUR WORK. WILL GIVE BRAINLIEST TO THOSE YOU DO EVERYTHING. HELP ASAP. 10 POINTS.

Answers

Answer 1

Answer: 0

Step-by-step explanation: paul was the one how had the baseball cards not isaac

tbh really easy no offence

Answer 2

The requried, Isaac had 40 cards in the beginning.

What are simultaneous linear equations?

Simultaneous linear equations are two- or three-variable linear equations that can be solved together to arrive at a common solution.

If Paul gave 30 cards to Isaac, then Isaac would have 30 more cards than he originally had, and Paul would have 30 fewer cards than he originally had. This means that their new card counts would be:

Isaac: 2x + 30

Paul: 5x - 30

Since they would have the same number of cards after this transfer, we can set their new counts equal to each other and solve for x:

2x + 30 = 5x - 30

60 = 3x

x = 20

Now that we have found the value of x, we can find out how many cards Isaac had in the beginning by substituting x = 20 into the expression for Isaac's card count:

Isaac: 2x = 2(20) = 40

Therefore, Isaac had 40 cards in the beginning.

Learn more about simultaneous equations here:

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Related Questions

When Grayson moved into a new house, he planted two trees in his backyard. At the time of planting, Tree A was 29 inches tall and Tree B was 14 inches tall. Each year thereafter, Tree A grew by 2 inches per year and Tree B grew by 5 inches per year. Let A A represent the height of Tree A t t years after being planted and let B B represent the height of Tree B t t years after being planted. Write an equation for each situation, in terms of t , t, and determine the height of both trees at the time when they have an equal height.

Answers

tree A. Tree B
==
|. =
|. - 29in. |. = 14 in
|. |


year one:
tree A-29+2=31
tree B- 14+5= 19


year two
Tree A- 31+2=33
Tree B- 19+5= 25


and this continues until the same height is reached

Pls help due in 5 mins

Answers

Answer:

60 cm

Step-by-step explanation:

The answer is b 60cm

26. Find the volume of a cube with side length 2 m.

Answers

v=8m3!!!/&?2.?72?,7!;8!9

Please help this is due today at 9:00 PM!

Answers

Answer: B

Step-by-step explanation: When you find the amount of sugar that Brain has for 12 ounces you find that it is twice as much as David does

The answer is B because 30:4 is two times bigger than 45:12

PLEASE HELP LATS MATH PROBLEM
A, B and C

Answers

Answer:

a) Set up triangles where the hypotenuse is 16ft (the ladder) and one of the two edges are 1, 2, 3, 4, 5ft (the base of the ladder).  Use a^2 + b^2 = c^2 where a is the base length, c is the hypotenuse and b is the value you are trying to find.

Ex w/ 1ft base:

1^2 + b^2 = 16^2

1 + b^2 = 256

b^2 = 255

b = 15.97ft.

b) Simply take your answers from part a) and add 5.5ft (the height of the girl) to them.

Ex w/ 1ft base:

15.97ft + 5.5ft = 21.47ft

c) Using logic here think about it.  Let's take the 1ft base as the example.  Marissa standing on top of the ladder is 21.47ft.  That's clearly not high enough to reach the cat . . . but what happens if Marissa reaches upwards.  As long as her arms can reach roughly 1.53ft above her head she should be able to reach it.

Step-by-step explanation:

lolz

WILL MARK BRAINLIEST IF RIGHT!Cam is using this coordinate plane to find areas of triangles using the formula 1/2 bh, choose ALL sets of triangle coordinates for which (2, 1) and (2,-2)

Answers

Answer:

Area: T = 3

Sides: a = 2.828   b = 2.236   c = 3

Step-by-step explanation:

Angle ∠ A = α = 63.435° = 63°26'6″ = 1.107 rad

Angle ∠ B = β = 45° = 0.785 rad

Angle ∠ C = γ = 71.565° = 71°33'54″ = 1.249 rad

Hope this helps!

Have a good day!

:D

Evaluate each expression for the value given z/4;z=824

Answers

Answer:

their is no answer

Step-by-step explanation:

When Paisley moved into a new house, she planted two trees in her backyard. At the
time of planting, Tree A was 21 inches tall and Tree B was 33 inches tall. Each year
thereafter, Tree A grew by 6 inches per year and Tree B grew by 3 inches per year. Let
A represent the height of Tree At years after being planted and let B represent the
height of Tree Bt years after being planted. Write an equation for each situation, in
terms of t, and determine the interval of time, t, when Tree A is taller than Tree B.

Answers

Answer:

At the time of planting, Tree A was 19 inches tall a When Makayla moved into a new house, she planted two trees in her backyard. At the time thereafter, Tree A grew by 6 inches per year and Tree B grew by 2 inches per year. Let Rate the tree grew every year- 6 inches per year. Equation- 6t+19.

Step-by-step explanation:

Explain why the value of 0.6 is greater than the value of 0.39.

Answers

Answer:

Step-by-step explanation:

the value 0.6 is greater than 0.39 bc 0.6 is a bigger value than 0.39 as u go down the values get more bigger and as u go up the values get more smaller.

Hope this helps!

Answer:

Step-by-step explanation:

because 0.6=0.60 and 0.60 is bigger than 0.39.hope it helps.

Find the probability of rolling an odd number on a fair number cube and drawing a 7 of any suit from a standard deck of cards.

Answers

Answer:

A deck of cards contains RED cards numbered 1,2 and BLUE cards numbered ... Patricia will draw 8 cards from a standard 52-card deck with replacement. ... Outcome: any of the possible results of an experiment in probability. ... Correct answers:$\frac{7}{9}$7/9​​ ... Event A: rolling a 6-sided fair number cube and getting 1Step-by-step explanation:

The probability of rolling an odd number on a fair number cube and drawing a 7 of any suit from a standard deck of cards is 1/26.

To find the probability of rolling an odd number on a fair number cube and drawing a 7 of any suit from a standard deck of cards, we need to calculate the probabilities of each event and then multiply them together since the events are independent (the outcome of one event does not affect the outcome of the other event).

1. Probability of rolling an odd number on a fair number cube:

A fair number cube has 6 faces with numbers 1 through 6. Out of these, three numbers are odd: 1, 3, and 5. So, the probability of rolling an odd number is 3/6, which simplifies to 1/2.

2. Probability of drawing a 7 of any suit from a standard deck of cards:

A standard deck of cards has 52 cards. There are four 7s in the deck (one for each suit: hearts, diamonds, clubs, and spades). So, the probability of drawing a 7 is 4/52, which simplifies to 1/13.

Now, multiply the probabilities together:

Probability = (Probability of rolling an odd number) * (Probability of drawing a 7)

Probability = (1/2) * (1/13)

Probability = 1/26

Therefore, the probability of rolling an odd number on a fair number cube and drawing a 7 of any suit from a standard deck of cards is 1/26.

To know more about probability, refer here:

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Sam bought a new bicycle on sale that was originally $160 but was 20% off. He was also charged 6.5% sales tax. How much did Sam pay in total after the discount and tax?

Answers

Sam paid 136.32 after tax you take 20% from 160 which 10% of 160 is 16 and 16+16=32 making 20% 32$ off then add the 6.5%

HELP NOW Claire buys a jacket that originally cost $76. The price is marked down 25% for a
sale. What is the discounted price of the jacket? HELP NOW

Answers

Answer:

$57

Step-by-step explanation:

76 x 25% (0.25) = 19

76 - 19 = 57

Answer:

$57

Step-by-step explanation:

100-25=75%

75%=0.75

0.75 times by 76=57

A typical basketball player scores on 70% of free throw attempts. During a basketball practice, Lebron james attempted 40 free throws and was successful on 75% of them. How many free throws did he get? ( Give me methods as to how you got it ) I will mark brainiest who ever explans the most!

Answers

As you may know, 70% is equal to .7. So you just multiply 40 by .7 to get 28, which is the answer.

Help fast 6th grade math

Answers

Answer:

2.6

Step-by-step explanation:

2.6. Have a good day

Find the missing angle in a triangle with the given sides.

Answers

Answer: 72 degree

Step-by-step explanation:

By Angle Sum Property,

53 + 100 + angle C = 180

153 + angle C = 180

angle C = 180 - 153

       =    72 degree

Hope it helped u,

pls mark as the brainliest        - Ayaan707 for help -

^_^

Answer: 27

Step-by-step explanation:

The full triangle has to equal 180

Anil wants to multiply 5, 6, and 3. Which expression could Anil write in the box to
show a way to multiply these numbers?
5 x 6 x 3=0
5 x 18
30 + 3
11 + 3
11 x 3

(NO FILES OR LINKS!)

Answers

Answer:

5x18

Step-by-step explanation:

5x6x3 and 5x18 equal 90

Both 5x6x3
And 5 x18 because 18=6*3

Part A: Explain why x = 5 makes 4x − 1 ≤ 19 true but not 4x − 1 < 19. (5 points) Part B: What value from the set {6, 7, 8, 9, 10} makes the equation 5x + 2 = 47 true? Show your work.

Answers

A) because 4 times 5 minus one equals 19 the second equation is telling me 19 is greater than 19
B)9x5=45+2=47

Of the 220 tickets available for a school play, 45% have been sold.

What is the number of tickets that have sold?


A. 99

B. 175

C. 489

D. 990

Answers

Answer:

A.

Step-by-step explanation:

Hope this helps and have a great day!!!!

Answer:

A 99

Step-by-step explanation:

you would multiply 220 by .045 and get 99.

the maximum load of elevator is 480 pounds. Assuming that the average mass of student is 45 pounds, and m represents the number of students in the elevator, how many students can take the elevator at the same time

Answers

we can use the equation 45m < 481

we can replace m to see where it caps.

and the cap is 10.

we can replace m to check our work

45(10) < 481

450 < 481

if you add another student, it would go over the limit.

hope this helps :D


about 10 students can get on a elevator at once

middle school
math problem....

Answers

Answer:

I think the answer is kole

Step-by-step explanation:

answer ; Bella is correct.

explanation; 265 - 45 / 11 = w doesn't look correct.

You're also supposed to put a letter next to a number, in this case 11.

11w + 45 = 265 would be correct because you would multiply 11 and w to find ? + 45, which would equal 265 and would help her get the bike.

There is a closed carton of eggs in Mai's refrigerator. The carton contains eggs and it can hold 12 eggs.

1. What does the inequality e>0 mean in this context?

Answers

I think it means that the carton holds more than 0 eggs

I’m sorry if it’s wrong but have a good day : )
I think it means zero eggs are being holding

please help asap im confused

Answers

Answer:

Brand #2

Step-by-step explanation:

Brand #2 is the cheapest making it the best value.

Hope this helped :)

Answer:

brand 2

Step-by-step explanation:

brand 2 is 1.18 per packet

2)who ever gets this will get a brainlest

Answers

Answer:

the answer is 36

Step-by-step explanation:

you multiply 120 by .30

Answer:

36

Step-by-step explanation:

30/100*120=

=3600/100=

=36 students have completed their science projects.

A shirt is originally priced at $15. It is marked down by 35%. What is the new cost of the shirt?

Answers

It would be £9.75 :)
Answer $9.75

Step by step

100-35= 65%
0.65 times 15
9.75

can u guys plz help me with these questions

Answers

Answer:

on question #2, the answer is A.

Step-by-step explanation:

19-5 is 14.

Hope this helps!

On question 2# is A hope this helped

does anyone understand this?

Answers

Answer:

first option is correct

Step-by-step expla nation:

s=1/6 r

I can’t see the photo

Please help me i really do need help

Answers

Answer:

1.) less than four sides

2.) There should only be straight sides

Answer:

This is not a quadrilateral because a quadrilateral only has 4 sides, 4 vertices, and 4 angles.

This is not a quadrilateral because they do not have any curves.

Part A: Write an expression representing the perimeter of the rectangle as the sum of the four side lengths. Expression: __________________

Part B: Explain how the expression 2 (2x + 4/5) also represents the perimeter of the rectangle.

Part C: The perimeter of the rectangle is 7 3/5 units. What is the value of x?
Show your work

Please answer this please immediately!!!!

Answers

Answer:

2(2x+4/5) is the x+4/5 multiplied by 2

Answer:

Part A: 4x + 1 4/5

Part B: 2(2x + 4/5) represents 2(length + width)

Part C: x = 29/20

Step-by-step explanation:

Part C work:

4x + 1 4/5 = 7 3/5

4x = 5 4/5

x = 29/20

Shivani jars 4 liters of jam everyday. How many days does Shivani need to spend making jam if she wants to jar 32 liters of jam in all?

Answers

The answer is 8 days because 32 divided by 4 is 8

The perimeter of a rectangle is 20 centimeters. Its length is 6 centimeters. What is its width?

Answers

Answer:

4 centimeters

Step-by-step explanation:

6+6=12

20-12=8

8/2=4

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