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Tanya [424]
3 years ago
9

Audrey has some guppies in a fish tank. The ratio of the orange guppies to silver guppies is 3 : 5. She has 12y orange puppies.

Write the number of silver guppies she has in terms of y.
Mathematics
2 answers:
adelina 88 [10]3 years ago
5 0

Answer:

Should be y=20

Step-by-step explanation:


Margarita [4]3 years ago
4 0
We solve:
\frac{3}{5} =  \frac{12y}{number \: of \: silver \: guppies} \: or \\  \\ 3 \times (number \: of \: silver \: guppies) \:  \\  = 60y \\  \\ this \: means \: the \: number \: of \:  \\ silver \: guppies \: in \: terms \: of \: y \: is \:  \\  \frac{60y}{3} = 20y
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If the sum of five consecutive even integers is 290, what is the smallest of the five integers?
PilotLPTM [1.2K]

So let n be the smallest number. To have consecutive even integers each number goes up by 2 so n, n+2, n+4, n+6, n+8.

Therefore, n+n+2+n+4+n+6+n+8=290

5n+20=290

5n=270

n=54

4 0
3 years ago
If u= <4,5> and v= <0,-1>, find 2v+5u
GaryK [48]

Answer:

<20,23>

Step-by-step explanation:

u= <4,5> and v= <0,-1>

2v = 2*<0,-1> = <0,-2>

5u = 5* <4,5> = <20,25>

2v+5u = <0,-2> + <20,25>

            = <20,23>

4 0
3 years ago
Read 2 more answers
Passes through (8,7) and (0,0)
quester [9]

Answer:

6,3

Step-by-step explanation:

8 0
3 years ago
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Sixty students voted in a class president. 30% of the students voted for Shawn and 70% of the students voted for Jane. How many
JulsSmile [24]
There are 60 students. The winner got 70% of the 60 students votes. Let's work this one out to get the answer.

First, you need to figure out what 70% of 60 is, by using this equation.
60 x .70 = 42.
Now that you know the answer is 42, you now know that 70 percent of 60 is 42.

So, the class president got 42 winning votes!






Hope I could help!
Ossashi(づᵔᗜᵔ)づ








8 0
3 years ago
A basket contains four apples and six peaches. You randomly select one piece of fruit and eat it. Then you randomly select anoth
Sveta_85 [38]

Answer:

Answer as a fraction: 4/15

Answer as a decimal: 0.267

The decimal version is approximate rounded to three decimal places.

Step-by-step explanation:

6 apples, 4 peaches

6+4 = 10 pieces of fruit total

The probability of picking an apple is 6/10 = 3/5

After you pick and eat the apple, there are 10-1 = 9 pieces of fruit left. Also, the probability of picking a peach is 4/9, as there are 4 peaches out of 9 fruit left over.

Multiply out 3/5 and 4/9 to get (3/5)*(4/9) = (3*4)/(5*9) = 12/45 = 4/15

Using a calculator, 4/15 = 0.267 approximately.

6 0
2 years ago
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