3 years ago

Please help ill give brainliest

Mathematics

2 answers:

bekas [8.4K]3 years ago

7 0

It’s the last one because you have a coupon which means your subtracting

velikii [3]3 years ago

4 0

Answer:

It's the 4th one because you first calculate the cost of the sanwiches and then you take off $2

Step-by-step explanation:

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How many counting numbers have three distinct nonzero digits such that the sum of the three digits is 7?

SOVA2 [1]

Answer:

Step-by-step explanation:

You have 2 conditions.

1. The digits must be different.

2. The digits must add to 7.

There aren't very many

124

142

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421

That's it. That's your answer. There are 6 of them

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3 years ago

Simplify -2x+7=15, i need help understanding why it is -4

yulyashka [42]

Answer:

-4

Step-by-step explanation:

Step 1: Subtract 7 from both sides.

−2x+7−7=15−7

−2x=8

Step 2: Divide both sides by -2.

−2x

−2

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3 years ago

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Step-by-step explanation:please see attachment for explanation

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