Y-(-3y) combine the like terms to create an equivalent expression

Mathematics

1 answer:

anastassius [24]2 years ago

5 0

Answer: 4y

Step-by-step explanation:

Distribute the negative sign to get rid of the parentheses

y+3y = 4y

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Plsssss help I’m stuck on this one

melisa1 [442]

9514 1404 393

Answer:

(a) x: Ferris wheel once; y: roller coaster once

Step-by-step explanation:

The coefficients of x and y are both 1 in the equation representing the statement ...

"if he rides them each once, it takes 14 minutes total."

That tells you that x and y represent the times for one ride.

The coefficient of x is 6 in the equation representing the statement ...

"he rides the Ferris wheel 6 times ..."

This tells you the variable x represents the Ferris wheel ride time. It is further confirmation that x represents the time for one ride.

6 0

2 years ago

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bogdanovich [222]

Answer:

The answer is 5

Step-by-step explanation:

2x+7=17

2x=10

x=5

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3 years ago

Starting at home Nadia traveled uphill to the grocery store for 30 minutes at just 4mph. She then traveled back home along the s

xz_007 [3.2K]

Answer:

6 mph

Step-by-step explanation:

Here is the complete question: Starting at home Nadia traveled uphill to the grocery store for 30 minutes at just 4mph. She then traveled back home along the same path downhill at a speed of 12 mph. What is her average speed for the entire trip from home to the grocery store and back?

Given: Time taken to travel uphill to the grocery store is 30 minutes.

Speed of travelling uphill to the grocery store is 4 mph.

Speed of travelling downhil to the home is 12mph.

First converting the unit if time given:

Time taken to travel uphill to the grocery store= $\frac{30}{60} = \frac{1}{2}$