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padilas [110]
3 years ago
14

. 15 pens at $. 79 each 13 erasers at $.29 each.​

Mathematics
1 answer:
gregori [183]3 years ago
3 0

Answer:

15.62

Step-by-step explanation:

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Step-by-step explanation:

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The size 4 soccer ball Sean’s team uses should weigh no more than 0.37 kilograms, and no less than 0.31 kilograms. A soccer bag
dmitriy555 [2]

Answers:

Q: What is the most they could weigh together?

A:  0.74 kg

-----

Q: What is the least they could weigh together?

A:  0.62 kg

=================================================

Work Shown:

x = weight of first ball

y = weight of second ball

each ball has a weight range of 0.31 kg to 0.37 kg, so,

0.31 \le x \le 0.37

0.31 \le y \le 0.37

add straight down to get

0.31+0.31 \le x+y \le 0.37+0.37

which simplifies to

0.62 \le x+y \le 0.74

the two soccer balls have a weight range of 0.62 to 0.74, inclusive of both endpoints.

--------

Without using algebra, you basically just add the smallest the two weights could be (0.31) to itself to get 0.31+0.31 = 0.62 which represents the smallest the two weights combined can be. The same happens with the largest weight of 0.37 to get 0.37+0.37 = 0.74 as the max weight of both objects together.

7 0
4 years ago
Which of the following expressions are equivalent to - 4 + (4 + 5)?
ryzh [129]

Answer:

number: 1,3,5

Step-by-step explanation:

8 0
3 years ago
A bottle of medicine contains 16 fluid ounces of medication. If one does of the medicine is equal to 1 teaspoon, and there are a
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Answer:

96 Doses

Step-by-step explanation:

6 teaspoons = 1 ounce

Med Bottle contains 16 ounces of medicine

6 * 16 = 96

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3 years ago
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