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4 years ago

Can someone help with these problems?

Mathematics

2 answers:

fgiga [73]4 years ago

7 0

Answer:

First, you have to substitue 3 into x

20 - 5(3)

20 - 15

= 5

so the first one is 5

the next one we will do the same but with 4

20 - 5(4)

20 - 20

= 0

Step-by-step explanation:

vaieri [72.5K]4 years ago

5 0

Answer:

20-5(3)

20-15

than

20-5(4)

20-20

and there is your answer

Step-by-step explanation:

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3 years ago

Blake into her friends are going to an amusement park. The cost of admission to the park is $39.95 per person. Once they're in t

Sindrei [870]

Answer:

143.70 = 3(39.95) + x

where x is the additional fee spent to race the cars at the park

Step-by-step explanation:

Let’s write the complete question first before we solve;

Blake and two of her friends are going to an amusement park. The cost of admission to the park is $39.95 per person. Once they are in the park, Blake and her friends ride the race cars, which require an additional fee. The total amount spent by all three boys is $143.70. Write an equation that can be used to find the additional fee to ride the race cars.

solution;

we are trying to write an equation that could help determine the additional fee used to race cars at an amusement park by a group of friends.

we proceed as follows;

We identify that they are 3, with each spending an amount equal to $39.95 for admission.

now to find the additional fee, we simply multiply the admission fee by 3 and subtract from the total amount spent.

let’s say the additional fee is x

This means;

143.70 = 3(39.95) + x

To get x, we can then open the bracket then take the value to the other side to get x

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3 years ago

What is 4 60/72 as a decimal

Whitepunk [10]

Answer:

0.206897

Step-by-step explanation:

it is 0.206897 because you have take the whole make uneven fraction an add it to 60 in 60/72 to get 348 divided equals 0.206897

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3 years ago

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A group of people pays$720 for admission tickets to an amusement part. The price of an adult ticket is $15 and a child ticket is

Masteriza [31]

Answer:

Step-by-step explanation:

Set the number of children to n.

The number of adults is, thus, n + 25.

The total price of admission is $720, made up of adult tickets and child tickets.

The children paid $8 per child, or

8 * n

The adults paid $15 per adult, or

15 * (n + 25)

These sum of these is equal to the total cost of $720.

8*n + 15*(n + 25) = 720

8n + 15(n + 25) = 720

Multiplying 15 with both n and 25.

8n + 15n + 25*15 = 720

8n + 15n + 375 = 720

Subtracting 375 from both sides.

8n + 15n + 375 - 375 = 720 - 375

8n + 15n = 345

Adding together 8n and 15n.

23n = 345

Dividing both sides by 23.

n = 345/23 = 15

n = 15

As n is the number of children, there are 15 children in the group.

Answer: 15

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3 years ago