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Oduvanchick [21]
2 years ago
8

3. Last year 858 people attended the Middleton County Fair. This year 1,635 people attended. What was the percent increase from

last year to this year? (Round to the nearest percent)
A.90%

B.91%

C.47%

D.48%

Mathematics
1 answer:
nekit [7.7K]2 years ago
3 0

Answer: 47?

Step-by-step explanation:

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Suppose that X is a subset of Y. Let p be the proposition ‘x is an element ofX’ and let q be the proposition ‘x is an element of
Genrish500 [490]

Answer:

See answer below

Step-by-step explanation:

The statement ‘x is an element of Y \X’ means, by definition of set difference, that "x is and element of Y and x is not an element of X", WIth the propositions given, we can rewrite this as "p∧¬q". Let us prove the identities given using the definitions of intersection, union, difference and complement. We will prove them by showing that the sets in both sides of the equation have the same elements.

i) x∈AnB  if and only (if and only if means that both implications hold) x∈A and x∈B if and only if x∈A and x∉B^c (because B^c is the set of all elements that do not belong to X) if and only if x∈A\B^c. Then, if x∈AnB  then x∈A\B^c, and if x∈A\B^c then x∈AnB. Thus both sets are equal.

ii) (I will abbreviate "if and only if" as "iff")

x∈A∪(B\A) iff x∈A or x∈B\A iff x∈A or x∈B and x∉A iff x∈A or x∈B (this is because if x∈B and x∈A then x∈A, so no elements are lost when we forget about the condition x∉A) iff x∈A∪B.

iii) x∈A\(B U C) iff x∈A and x∉B∪C iff x∈A and x∉B and x∉C (if x∈B or x∈C then x∈B∪C thus we cannot have any of those two options). iff x∈A and x∉B and x∈A and x∉C iff x∈(A\B) and x∈(A\B) iff x∈ (A\B) n (A\C).

iv) x∈A\(B ∩ C) iff x∈A and x∉B∩C iff x∈A and x∉B or x∉C (if x∈B and x∈C then x∈B∩C thus one of these two must be false) iff x∈A and x∉B or x∈A and x∉C iff x∈(A\B) or x∈(A\B) iff x∈ (A\B) ∪ (A\C).

8 0
3 years ago
What is an ordered pair to the equation -6x+y=-4
balandron [24]

n

y

=

−

x

−

4

To find the x-intercept, substitute in

0

for

y

and solve for

x

.

0

=

−

x

−

4

Solve the equa

−

x

−

4

=

0

.

−

x

−

4

=

0

Add

4

to both sides of the equation.

−

x

=

4

Multiply each term in

x

=

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by

−

1

x

=

−

4

To find the y-intercept, substitute in

0

for

x

and solve for

y

.

y

=

−

(

0

)

−

4

Simplify

−

(

0

)

−

4

.

Multiply

−

1

by

0

.

y

=

0

−

4

Subtract

4

from

0

.

y

=

−

4

These are the

x

and

y

intercepts of the equation

y

=

−

x

−

4

.

x-intercept:

(

−

4

,

0

)

y-intercept:

(

0

,

−

4

)

not too sure

6 0
3 years ago
5(x-2)-3= 5x-13<br>help me plz​
Anna007 [38]
X has infinity solutions.
7 0
2 years ago
Write an inequality and use substitution to solve the following problem:
nekit [7.7K]

They already spent $2000, and they only had $5100

Subtract

5100 - 2000 = 3100

$3,050 is your answer, because it is the only one that is less than 3100

hope this helps

7 0
3 years ago
Question
dem82 [27]

Answer:

AABC and AXYZ are similar triangles. The lengths of two sides of each triangle are shown. Find the lengths of the third side of each triangle

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1 year ago
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