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OLga [1]
2 years ago
5

Marylee paid $40 for an item after she received a 20% discount. Marylee's friend says this means that the original price of the

item was $48. How do you think Marylee's friend arrived at this amount?
Mathematics
1 answer:
Art [367]2 years ago
6 0

Answer:

Step-by-step explanation:

i need this one too helpp

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Let C(x) be the statement "x has a cat", let D(x) be the statement "x has a dog" and let F(x) be the statement "xhas a ferret".
Arturiano [62]

Answer and Step-by-step explanation:

C(x) be the statement "x has a cat"

D(x) be the statement "x has a dog"

F(x) be the statement "x has a ferret".

Universe = x = all students in your class.

a) A student in your class has a cat, a dog and a ferret   = ∃x(C(x) ∧ D(x) ∧ F(x))

b) All students in your class have a cat, a dog, or a ferret  =  ∀x(C(x) ∨ D(x) ∨ F(x))

c) Some students in your class has a cat and a ferret but not a dog  = ∃x (C(x) ∧ F(x) ∧ ¬D(x))

d) No student in this class has a cat, a dog and a ferret  ¬∃x (C(x) ∧ D(x) ∧ F(x))

e) For each of the three animals, cats, dogs and ferrets, there is as student in your class who has one of the three animals.  (∃xC(x)) ∧ (∃xD(x)) ∧ (∃xF(x))

4 0
3 years ago
Find m P. Quadrilateral
Mashutka [201]

Answer:

m∠P = 107º

Step-by-step explanation:

Since two sides are parallel this is a trapezoid

In a trapezoid, the angles on the same leg (called adjacent angles) are supplementary, meaning they add up to 180 degrees.

(7x + 31) + (21x - 19) = 180

combine like terms

28x + 12 = 180

Subtract 12 from both sides

28x = 168

Divide both sidees by 28

x = 6

m∠P = 21x - 19

m∠P = 21(6) - 19

m∠P = 107º

8 0
3 years ago
Gina travels a distance of 7 miles to reach home. The bus ride covers 5 miles. She then walks 2 miles to reach her home. What fr
lbvjy [14]

Answer:

5/7 miles

Step-by-step explanation:

Gina travels a distance of 7 miles to reach home. The bus ride covers 5 Given data

Total distance traveled = 7 miles

Bus ride= 5 miles

Walk= 2 miles

Hence the fraction of miles traveled by bus is

=5/7 miles

3 0
2 years ago
8 1/2=7 ?/2<br> NEED HELP ASAP:)
VARVARA [1.3K]
Eight and one half is equal too seven and three halves
3 0
2 years ago
Read 2 more answers
What are the partial products for 62 x 45?
vesna_86 [32]
62×45 = 2790 I hope this help you
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2 years ago
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