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Rudik [331]
3 years ago
13

The number of Roberto’s baseball cards is ¾ the number of David’s cards If Roberto gives ½ of his cards to David, what will be t

he ratio of Roberto’s cards to David’s cards? please help me. I need it to step by step equations!!!!
Mathematics
2 answers:
inn [45]3 years ago
6 0

Answer:

1/4, 0.25

Step-by-step explanation:

PtichkaEL [24]3 years ago
4 0

Answer:

3/11

Step-by-step explanation:

Let Roberto's cards be x.

Let David's cards be y

x = (3/4) y

Roberto gives half his cards away which is 1/2*(3/4) = 3/8

David's new amount after the gift = 1/2(3/4)y + y = 3/8y+y=3y/8+8y/8 = 11y/8

So the ratio is Roberto / David = (3/8) // (11/8)

Roberto to David = 3/8 // 11.8 which you now invert and multiply the denominator

Roberto to David = 3/8 * 8/11 = 3/11

Done on my cell.

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Jada has read 35 of a book. She has read 75 pages so far. How many pages are in the whole book?
Savatey [412]

Answer:

Im Guessing 110 for what info u just gave me.

Step-by-step explanation:

75+35 = 110

6 0
3 years ago
Read 2 more answers
3x - y = 2<br>and<br>2x + y = 4​
Naddik [55]

\frac{3}{1}Answer:

Step-by-step explanation:

3x-y = 2

2x+y =4

put them into slope intercept form

y=3x-2

y=-2x+4

Now, you can either graph it or use substitution

3x-2 = -2x+4

+2x +2x

5x -2 = 4

+2 +2

5x = 6

5x/5 = 6/5

x = 6/5

3x -2 = y

3(6/5) -2 = y

3 x 6 / 1 x 5 = 18/5

3 3/5 -2 = 1 3/5

Let me know if it's wrong.

Hope this helps

6 0
3 years ago
4+2p=10( 5/3p−2)<br> Solve
worty [1.4K]

Answer:

p=18/11

Step-by-step explanation:

Simplify: 4+2p=50/3p-20

Multiply each side by 3: 12+6p=50p-60

Add like terms: -44p=-72

Divide both sides by -44 and simplify:  p=18/11

7 0
3 years ago
Read 2 more answers
How many times can 16 go into 50
ExtremeBDS [4]
Three times. The remainder would be 2.
5 0
3 years ago
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A cone shaped paper water cup has a height of 12 cm and a radius of 6 cm. If the cup is filled with water to half its height, wh
monitta

Answer:

The portion of the volume of the cup that is filled with water is \frac{1}{8}

Step-by-step explanation:

step 1

Find the volume of the paper water cup

The volume of the cone is equal to

V=\frac{1}{3}\pi r^{2}h

we have

r=6\ cm

h=12\ cm

substitute

V=\frac{1}{3}\pi (6)^{2}(12)

V=144\pi\ cm^{3}

step 2

If the cup is filled with water to half its height, find out what portion of the volume of the cup is filled with water

Remember that

If two figures are similar, then the ratio of its volumes is equal to the scale factor elevated to the cube

In this problem the similar cone has half the height of the complete cone

so

The scale factor is equal to 1/2

therefore

The volume of the cup that is filled with water is equal to the volume of the complete cup by the scale factor elevated to the cube

V=(1/2)^{3}(144\pi)=(1/8)144\pi\ cm^{3}

therefore

The portion of the volume of the cup that is filled with water is

\frac{1}{8}

8 0
3 years ago
Read 2 more answers
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