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vlada-n [284]
3 years ago
14

Last weekend, Lexie spent 1/2 of her money on the movies and 1/4 of her money on food. She has $7.50 remaining. How much money d

id she have originally?
Mathematics
1 answer:
Degger [83]3 years ago
7 0
It is 60 dollars because you work backwards so you multiply 7.50 by 4 and 2. 
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Factor completely or identify as prime.
SSSSS [86.1K]

Answer:

Factor the polynomial

C. (p-3) (4p+5) (4p-5)


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3 years ago
The square ABCD has side length 20 cm,
bogdanovich [222]

Answer:

AE=22.4

Step-by-step explanation:

BE is 1/2 of BC

BC is 20 cm                 All sides of a square are equal

BE = 1/2 BC                  Property of a midpoint.

BE = 10

Now just use Pythagorus

AB^2 + BE^2 = AE^2

AE^2 = 20^2 + 10^2   Perform the sqrs

AE^2 = 400 + 100      Add the terms

AE^2 = 500                Take the square root of both sides

√AE^2 = √500

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AE ≈ 22.4

6 0
3 years ago
NEED HELP ASAP!!! ALGEBRA 1 STUFF (20pts.)
3241004551 [841]
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10pts off = 5
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4 0
3 years ago
Simplify the expression. -3(1+n)-6n
BabaBlast [244]

Answer:

− 3 − 9 n

Step-by-step explanation:

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5 0
2 years ago
Read 2 more answers
Frequency (y) varies inversely with wavelength (x). Find the frequency (measured in THz ) of blue light if its k value is 175,72
horsena [70]

We have been that frequency (y) varies inversely with wavelength (x).

We know that two inversely proportional quantities are in form a=\frac{k}{b}, where a is inversely proportional to b and k is constant of variation.

Our required equation would be y=\frac{k}{x}.

To find frequency of blue light, we will substitute k=175,720 and x=230 in our equation as:

y=\frac{175,720}{230}

y=764

Therefore, the frequency of blue light is 764.

8 0
3 years ago
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