3 years ago

Use diagrams of equivalent ratios to show that the ratios 2:3,4:6, and 8:12 are equivalent

Mathematics

1 answer:

stellarik [79]3 years ago

5 0

Can someone please go over to my page and help me with this problem, its worth 99 points,no joke

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A 1 km long train travelling at a speed of 60km/h enter a tunnel 1km long. What time will the train take to come out of the tunn

zysi [14]

Answer:

2 minutes

Step-by-step explanation:

The front of the train enters the tunnel and travels 1 km before the rear of the train enters the tunnel. Thus, the total distance traveled by the front of the train is 2 km, and this is covered in a certain number of hours:

Since distance = rate times time, time = distance / rate. In this particular case we have:

2 km

time = distance / rate = ------------------- = (1/30) hr

60 km/hr

(1/30) hr converts to 2 minutes, since 1 hr = 60 minutes

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2 years ago

Tanner has a budgeted no more than $20 a month for entertainment and an additional $15 for possible one-time fees. If Tanner has

sesenic [268]

Let the number of months = x , and total budget = y

An inequality to represent the situation:

$y \leq 20 x + 15$

For budget = $155
∴ 155 = 20 x +15
solve for x
20 x = 155 - 15 = 140
∴ x = 140/20 = 7

∴ The greatest number of months = 7 months.

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3 years ago

1. The distance you travel varies directly with the amount of gas you use. You can travel 300 miles on 12 gallons of gas.

Ratling [72]

Answer is in the attachment