3 years ago

Substitute x=3y+1 into the expression-x -7 and simplify

Mathematics

1 answer:

ratelena [41]3 years ago

3 0

Answer:

Step-by-step explanation:

x-7

3y+1-7

3y-6

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Answer:

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2 years ago

If you were to solve the following system by substitution, what would be the best variable to solve for and from what equation?

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2 years ago

CONSTRUCTION Carlos is building a screen door. The height of the door is I foot more than twice its width. What is the width of

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Answer:

<h2>width = 3 feet</h2>

Step-by-step explanation:

Let h be the height of the door

and w be its width

The statement “The height of the door is I foot more than twice its width”

can be translated mathematically like this : h = 2w + 1

Let’s solve the equation for w:

h = 2w + 1

⇔ 2w = h - 1

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1 year ago

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A case of tomato cans weighs 563 dekagrams. A case of soup cans weighs 458 dekagrams. How much do the two cases weigh together i

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Answer:

102,100 decigrams

Step-by-step explanation:

(564 dag + 458 dag) = 1021 dag

1021 dag × 100 dg/dag = 102100 dg

The two cases together weigh 102,100 decigrams.

_____

1 dag = 10 g

1 dg = 0.1 g

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2 years ago

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