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lilavasa [31]
3 years ago
9

the ratio of boys to girls at the beach clean up was 7:8 if there are 42 boys how many girls are there

Mathematics
1 answer:
Len [333]3 years ago
4 0
48 girls are there. Given that there is a ratio of boys to girls of 7:8. Then divide 42 boys by 7 boys which equals 6. After, multiply 6 by 8 girls equals 48 girls.

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You're at a halloween fair with a big ferris wheel. the wheel has ten chairs and people are seated two per chair. every minute a
miskamm [114]
The number of people who took ride in the big ferris wheel at a fair can be calculated by proper dimensional analysis. This can be done through the equation below,

         n = (number of minutes)(rate at which the chair passes the exit platform)(number of persons per chair)

Substituting the known values to the equation,

       n = (30 minutes)(1 chair / minute)(2 persons / chair)
                 n = 60 persons

Answer: 60 persons
8 0
4 years ago
Read 2 more answers
On a recent day, 8 euros were worth $11 and 24 euros were worth $33. Enter an equation of the form y = kx to show the relationsh
irakobra [83]

Put the numbers in the given equation and solve for k.

... $11 = k·(8 €)

Divide by the coefficient of k:

... k = $11/(8 €) = 1.375 $/€

Then your equation is ...

... y = (1.375 $/€)x

_____

It is fairly common to leave the units out of such equations, assuming that everyone understands that x is in euros and y is in dollars and the conversion factor includes a unit change from euros to dollars. Thus, you might expect to see ...

... y = 1.375·x

5 0
3 years ago
Please help me. I don’t understand
laiz [17]

Answer:

Therefore the Equation and missing value is

\dfrac{3}{4}=\dfrac{1}{6}+x      .............Equation for the Diagram

x=\dfrac{7}{12}

Step-by-step explanation:

Given:

Let Label the Diagram such that

AB =\dfrac{1}{6}

BC =c

AC =\dfrac{3}{4}

To Find:

Equation =?

x = ?

Solution:

Here Total Length is given in Two Parts

one\ part =\dfrac{1}{6}

Second\ part =x

Total =\dfrac{3}{4}

For a Line A-B-C

AC =AB+BC       ..............Line Addition Property

Substituting the values we get

\dfrac{3}{4}=\dfrac{1}{6}+x ...Equation for the Diagram

x = \dfrac{3}{4}-\dfrac{1}{6}\\\\x=\dfrac{18-4}{4\times 6}\\\\x=\dfrac{14}{24}\\\\x=\dfrac{7}{12}

Therefore the Equation and missing value is

\dfrac{3}{4}=\dfrac{1}{6}+x ...Equation for the Diagram

x=\dfrac{7}{12}

3 0
3 years ago
Theresa has $12 in nickels amd quarters if she has the same number of each kind of coin how many nickels and quarters does she h
Bogdan [553]

n=# of nickels

q=# of quarters

$12 is 1200 cents

5n+25q=1200

n=q

substitute q for n or n for q

5q+25q=1200

30q=1200

q=1200/30

q=40 quarters and therefore n=40 nickels

40 quarters is $10 and 40 nickels is $2, therefore you have $12

Hope this helps.

4 0
3 years ago
(2x + 64)。<br> 中个<br> (4x + 8)。<br> What is x?
JulsSmile [24]

Answer:

if that arrow stands for an equal, than x=28

4 0
3 years ago
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