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3 years ago

Please help me anyone I need help with this question

Mathematics

1 answer:

Leto [7]3 years ago

7 0

Answer:

(d) 2x +y = 8

Step-by-step explanation:

The answer choices are shown in "standard form," so the comparison to the given equation is easier if it is written in standard form. Add 2x to both sides:

2x +y = 5 . . . . . . given equation in standard form

The other equation in a system with no solution will look like this, but will have a different constant:

2x +y = 8 . . . . . . does not intersect the given equation

_____

<em>Additional comment</em>

All of the other equations shown will intersect the given equation. One way to show this is to use the given equation to substitute for y in the answer choices:

a: 2x -(-2x+5) = 8 ⇒ 6x -5 = 8 . . . one solution: x=13/6

b: x +2(-2x+5) = 8 ⇒ -3x +10 = 8 . . . one solution: x=2/3

c: x -2(-2x+5) = 8 ⇒ 5x -10 = 8 . . . one solution: x=18/5

d: 2x +(-2x+5) = 8 ⇒ 5 = 8 . . . no solution

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sineoko [7]

Answer:

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Step-by-step explanation:

Average prices= $18,500

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Sum of quoted prices=

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Next price to be quoted will be ;

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3 years ago

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cestrela7 [59]

Answer:

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Step-by-step explanation:

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3 years ago

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kogti [31]

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3 years ago

Read 2 more answers

Part 1: What is the rate of rice to quarts of water for this recipe that uses 4 pounds of rice and 5 quarts of boiling water?

alex41 [277]

Given:

A recipe uses 4 pounds of rice and 5 quarts of boiling water.

To find:

The rate of rice to quarts of water for this recipe.

Solution:

We need to divide the amount of rice by amount of water to get the rate of rice to quarts of water for this recipe.

$\text{Required rate}=\dfrac{\text{Rice in pounds}}{\text{Water in quarts}}$