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3 years ago

What ratio is equivalent to 4 : 13? A. 8 : 17 B. 16 : 52 C. 12 : 33 D. 20 : 55

1 answer:

8 0

The answer would be b . i know this because if you multiply 4 and 13 by 4 you would get 16 and 52 , so the ration 16 : 52 is equivalent to the ration 4 : 13 .

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There 22,869 children,49,563 men and 2,872 more women than men st the fair.how many people were at the fair?

AfilCa [17]

There are 2872 more women than men
49563 + 2872 = 52435
52435 + 22869 = 75304

75304.in all

hope this helps

5 0

3 years ago

Read 2 more answers

. The mean incubation time for a type of fertilized egg kept at a certain temperature is 25 days. Suppose that the incubation ti

Paul [167]

Answer:

Step-by-step explanation:

Given that the mean incubation time for a type of fertilized egg kept at a certain temperature is 25 days.

Let X be the incubation time for a type of fertilized egg kept at a certain temperature is 25 days.

X is N(25, 1)

a) Normal curve is in the attached file

b) the probability that a randomly selected fertilized egg hatches in less than 23 days

= $P(X$

we convert x into Z score and use std normal distn table to find probability

$P(X$

i.e. we can say only 2.5% proportion will hatch in less than 23 days.

8 0

3 years ago

A grocery store recently sold a bag of peanuts for $0.76 and a bag of Pikachu's for $3.68 at the end of the day 50 bags of peanu

Setler [38]

Answer:

31 Pikachu bags were sold.

19 peanut bags were sold.

Step-by-step explanation:

Let's set up an equation of the total revenue of the day, where x is the number of Pikachu's sold.

We know that the number of Peanuts sold is 50-x (as the total needs to be 50)

We know that the total revenue is:

Number of Pikachus * Cost per Pikachus + Number of Peanuts * Cost per Peanuts

Using our definitions above:

Total Revenue = x * $3.68 + (50-x) * $0.76

We know that the revenue needs to be $128.52.

$128.52 = x * $3.68 + (50-x) * $0.76

Let's remove the $ signs.

128.52 = x * 3.68 + (50-x) * 0.76

Multiplying both 50 and -x with 0.76, "expanding" the parenthesis.

128.52 = x*3.68 + 50*0.76 - x*0.76

128.52 = x*3.68 + 38 - 0.76*x

Subtracting 38 from both sides

90.52 = 3.68*x - 0.76*x

We can simplify the right side.

90.52 = 2.92*x

We can divide both sides by 2.92:

31 = x

And flip it:

x = 31

So 31 Pikachus were sold (remember we claled that x), and as we know, the number of peanut bags sold is

50-x = 50-31 = 19

31 Pikachu bags were sold.

19 peanut bags were sold.

7 0

3 years ago

Read 2 more answers

Factorise fully 18e^2f^3-12e^2f

Alexeev081 [22]

Answer:

$18e^2f^3-12e^2f = 6e^2f(3f^2-2)$

Step-by-step explanation:

Given

$18e^2f^3-12e^2f$

Required

Factorize:

$18e^2f^3-12e^2f$

Express 18 as 6 * 3 and 12 as 6 * 2

$18e^2f^3-12e^2f = 6*3e^2f^3-6*2e^2f$

Factor out 6

$18e^2f^3-12e^2f = 6(3e^2f^3-2e^2f)$

Factor out $e^2$

$18e^2f^3-12e^2f = 6e^2(3f^3-2f)$

Factor out f

$18e^2f^3-12e^2f = 6e^2f(3f^2-2)$

8 0

3 years ago

HELP ILL GIVE PONTS // For a recent science project, Sally collected data regarding the distribution of fish and aquatic life in

myrzilka [38]

Answer:

32m³

Step-by-step explanation:

$\: \: \: \: \: \:$

4-4=0+9=9+23= 32m³

5 0

2 years ago