3 years ago

I need to know if 198 to 1287 and 2 to 13 are equivalent ratios

Mathematics

1 answer:

Vikki [24]3 years ago

6 0

yes they are equivalent

Step-by-step explanation: try dividing 198 and 1287 and the same to 2 and 13 you should get the same for both.

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The average of 5 consecutive multiples of 5 is 20 what is the largest of these numbers

vlada-n [284]

Answer:

Step-by-step explanation:

5 consecutive multiples of 5....

x , x + 5, x + 10, x + 15, x + 20

the average is 20...

(x + x + 5 x + 10 + x + 15 + x + 20) / 5 = 20

(5x + 50) / 5 = 20

5x + 50 = 20 * 5

5x + 50 = 100

5x = 100 - 50

5x = 50

x = 50/5

x = 10......smallest number

x + 5 = 10 + 5 = 15

x + 10 = 10 + 10 = 20

x + 15 = 10 + 15 = 25

x + 20 = 10 + 20 = 30 <=== largest number

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4 years ago

A group of friends wants to go to the amusement park. They have no more than $310

Marizza181 [45]

Answer: $35x+9\leq 310,\ 8$

Step-by-step explanation:

Given

A group of friends has $310 to spend

Parking costs $9 and ticket cost $35 per person

Suppose there are x friends who go to amusement park

So, the cost of tickets and parking must be less than or equal to $310

$\Rightarrow 35x+9\leq 310\\\text{Subtract 9 from both sides}\\\Rightarrow 35x\leq 301\\\text{Divide both sides by 35}\\\Rightarrow x\leq 8.6$

This indicates that there sholud be maximum 8 persons who can go to amusement park with this much money.

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