3 years ago

I'm struggling with this lesson on Study Island, please help!

Mathematics

1 answer:

vazorg [7]3 years ago

5 0

Answer:

Step-by-step explanation:

Associative property states that when three or more numbers are added, the sum is the same regardless of the grouping.

This means that (4x + 13) + 11 is the same as C. 4x + (13 + 11)

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Two burgers and one hotdog cost $4.82. At the same price ,one burger and two hotdogs cost $3.70. How much does a hotdog cost?

STatiana [176]

Hello!

Let's use 'x' to represent the cost of the burger, and 'y' to represent the cost of the hotdog.

2x + y = 482

× + 2y = 370

2x + 47 = 740

-3y = -258

y = 86 cents

2x + 86 = 482

2x = 396

x = 198

A burger costs $1.98 and a hot dog costs $.86

I hope this didn't confuse you, I'm not very good at explaining!

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2 years ago

The weights of NCAA lacrosse players are approximately normally distributed with a mean of 182 lbs and a standard deviation of 1

Marizza181 [45]

Answer:

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Step-by-step explanation:

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2 years ago

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