For this question, the choices are:
<span>1) Each
2) Both
3) Either
4) Neither
</span>
And the answer is both because it is the only plural pronoun that refers to one or more nouns in the sentence, hence the use of "were". Each, either and neither refer to only one of the other and thus would use "was" instead of "were" to refer to a singular noun.
Given:
Package A
Birthday cards = 3
Thank you notes = 2
Costs = $18
Package B
Birthday cards = 8
Thank you notes = 6
Costs = $50
Required:
x = birthday card cost
y = thank you notes cost
Solution:
Package A:
18 = 3x + 2y
Package B:
50 = 8x + 6y
Second, add the two equations using elimination method.
To find y eliminate x;
[8 (18 = 3x + 2y)] + [-3 (50 = 8x + 6y)]
(144 = 24x + 16y) + [-150 = -24x + (-18y)]
-6 = -2y
Divide both sides with -2.
y = 3 thank you notes cost
Next, let us find x by substituting the value of y.
(18 = 3x + 2y) + (50 = 8x + 6y)
[18 = 3x + 2(3)] + [50 = 8x + 6(3)]
(18 = 3x + 6) + (50 = 8x + 18)
68 = 11x + 24
68 – 24 = 11x
44 = 11x
Divide both sides with 11.
X = 4 birthday card cost
Explanation:
<h3><em>Eating a variety of foods is essential to life. In other words, we need to eat to live. Our bodies cannot manufacture all the substances we need and therefore we must consume foods to produce energy and to provide the building blocks necessary to sustain life.</em></h3>
Answer:
True
Explanation:
The average human produces 25,000 quarts of saliva or spit in a lifetime. That's enough saliva to fill 2 swimming pools
Answer:
The oak tree was chopped down by the Lumberjack.
Explanation:
Another example: Tom painted the entire house.
Passive voice: The entire house was painted by Tom.
Hope this helps!!