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jeka57 [31]
2 years ago
14

the admission fee for a charity event is $7 for children and $10 for adults the event was attended by 700 people on the total am

ount collected in the admission was $6,400 there were blank children and blank adults at the show ​
Mathematics
2 answers:
Luba_88 [7]2 years ago
6 0

the Answer:

200 Children & 500 Adults

Step-by-step explanation:

(A) Set up two equations from the given info:

1) 7C + 10A = 6,400 (amount of money brought in)

2) C + A = 700 (the total amount of people in attendence)

(B) set up a substitution:

A = 640 - 0.7C (can also solve for C, but in this case would be more difficult)

(C) use substitution in the second equation:

C+(640-0.7C)= 700

(D) do the algebra and solve for C:

C= 200

(E) insert the actual value of C back into the equations and solve for A:

200+A = 700 so A=500 (again, you could use either equation, this one is just simpler)

HOPE THIS HELPS!

9966 [12]2 years ago
3 0

Answer:

there were 200 children and 500 adults at the show

Step-by-step explanation:

7x+10y=6400

x+y=700

x=700-y

7(700-y)+10y=6400

4900-7y+10y=6400

-7y+10y=1500

3y=1500

y=500

x=700-y

x=700-500

x=200

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Step-by-step explanation:

\tt{30.16 = 17.56 + 5x}

Swap the sides of the equation :

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We want to remove the 17.56 first.

Since the original equation is 17.56 , we are going to use the opposite operation and subtract 17.56 from both sides :

⤑ \tt{5x + 17.56 - 17.56 = 30.16 - 17.56}

Simplify. 17.56 - 17.56 = 0 on the left. 30.16 - 17.36 = 12.6 on the right.

⤑ \tt{5x = 12.6}

Then, we need to think about how to remove the coefficient 5. Since the opposite of multiplication is division , I am going to divide both sides by 5.

⤑ \tt{ \frac{5x}{5}  =  \frac{12.6}{5}}

Simplify. 5/5 = 1 on the left and 12.6/5 = 2.52 on the right. So, Our answer is x = 2.52.

\pink{ \boxed{ \boxed { \tt{Our \: final \: answer :  \underline{ \underline{ \bold{ \tt{x = 2.52}}}}}}}}

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7 0
3 years ago
Drag the numbers to order them from least to greatest
AURORKA [14]
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6 0
2 years ago
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The number 1953125 is equal to 5^9. Explain how the information above tells you that it is not a square number. I've tried the a
ddd [48]

Answer:

5^{9} can not be expressed as a square of any other number.

Step-by-step explanation:

The number 1953125 is equal to 5^{9}.

Now, the above statement gives an idea that 1953125 i.e. 5^{9} is not a square number as 9 is not a multiple of 2.

So, we can not express 5^{9} as a square of any other number.

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3 years ago
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kozerog [31]

Answer:

x = 7.5

Step-by-step explanation:

3(x + 4.5) = 36

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3x = 36 - 13.5

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x =  \frac{22.5}{3}

x = 7.5

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andrezito [222]

Answer:

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Step-by-step explanation:

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That is 18.4×3:8= 184/10×3/8=6.9

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