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Mkey [24]
2 years ago
14

Bob has 12 red cards and 20 green cards. what is the ratio of bobs red cards to his green card

Mathematics
1 answer:
nadya68 [22]2 years ago
8 0

Answer:

3:5

  • If Bob has 12 red cards and 20 green cards, all we have to do is write the two numbers seperated by a colon.

12~to~20 -- > 12:20

  • How did we get 3:5 then, you may be asking? It is just a few simple steps. All you need to do is find the divisor. How do we find the divisor? Find the lowest <em>or highest</em> number that both parameters are divisible by.

\frac{12 / 4}{20 / 4} = \frac{3}{5} -- > 3:5

________________________________________________________

The problem is now complete, time to go over what we just learned while reading this.

________________________________________________________

<h3>What did we learn?</h3>

We learned how to find and simplify ratios in a story problem.

Related questions? Ask me in the <em>comments</em> box.

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What is the solution to this system of equations?<br><br><br>4x + 5y = 7<br><br><br>3x – 2y = –12
oksano4ka [1.4K]

Answer:

x = -2 and y = 3

Step-by-step explanation:

It is given that,

4x + 5y = 7    -----(1)

3x – 2y = –12   ----(2)

<u>To find the value of x and y</u>

eq(1) * 3 ⇒

12x + 15y = 21   ----(3)

eq(2) * 4 ⇒

12x - 8y = -48  ---(4)

eq(3) - eq(4) ⇒

12x + 15y = 21   ----(3)

<u>12x - 8y = -48 </u> ---(4)

 0 + 23y = 69

y = 69/23 = 3

Substitute the value of y in eq(1)

4x + 5y = 7    ----(1)

4x + 5*3 = 7

4x = 7 - 15 = -8

x = -8/4 = -2

Therefore x = -2 and y = 3

5 0
3 years ago
Klein stated before 7:10 meg inlinewhich shows this distance written as a decimal
vfiekz [6]
Since decimals have places in 10 100 and 1000 you need a denominator with those number but since you already have a 10 you take the 7 and add a 0. in front so the answer is 0.7


5 0
3 years ago
Find the time required for an investment of 5000 dollars to grow to 9000 dollars at an interest rate of 7.5
umka2103 [35]

Answer:

i think its 3.5 years

Step-by-step explanation:

4 0
2 years ago
What is the length of x? What is the length of EF? Only enter numbers in the answer boxes below:
dimaraw [331]

Focus on triangles DFC and DFE:

  • They are both right triangles because DF is perpendicular to EC
  • DC=DE
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So, the two triangles are congruent. It follows that CF=FE, and in particular

8x=3x+15 \iff 5x=15 \iff x=3

And since x=3, the length of EF is

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3 years ago
Simplify the ratio 2:10
Tamiku [17]
The answer to this question is 1:5
5 0
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