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attashe74 [19]
3 years ago
10

2x-y=4 what’s the answer

Mathematics
2 answers:
Lerok [7]3 years ago
8 0

Answer:

x=4 y=4

Step-by-step explanation:

avanturin [10]3 years ago
5 0

Answer:

2(2)-0=4

Step-by-step explanation:

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An algebra class has 16 students and 16 desks. For the sake of variety, students change the seating arrangement each day. How ma
sineoko [7]

Answer: a) 2092278989 b) 576, c) \dfrac{576}{2092278989}

Step-by-step explanation:

Since we have given that

Number of students = 16

Number of desks = 16

a)  How many days must pass before the class must repeat a seating arrangement?

16!=2092278989

If the number of rows = 4

b) How many seating arrangements are there that put Larry, Moe, Curly, and Shemp in the front seats?

4!\times 4!\\\\=24\times 24\\\\=576

c) How many seating arrangements are there that put Larry, Moe, Curly, and Shemp in the front seats?

\dfrac{576}{2092278989}

Hence, a) 2092278989 b) 576, c) \dfrac{576}{2092278989}

6 0
3 years ago
Rita's mother is 4 times as old as she is. Her grandmother is twice as old as her mother. If the sum of their age is 194, how ol
romanna [79]
R=rita's age
m=mother's age
g=grandmother's age



mother is 4 times as old as rita
m=4r

grandmother is 2 times as old as mother
g=2m

sum is 104

r+m+g=104
subsitute 4r for m and 2m for g
r+4r+2m=104
subsitute 4r for m
r+4r+2(4r)=104
r+4r+8r=104
13r=104
divide both sides by 13
r=8
4r=m=32
8r=2m=g=64


rita is 8
mother is 32
grandmother is 64
7 0
3 years ago
Jason needs 3 1/2 feet of rope. How long will it be in inches
Ray Of Light [21]

Answer:

42 in

Step-by-step explanation:

6 0
3 years ago
what is the area of the figure 26.8square meters 38.8square meters 43.2square meters 50.8square meters​
Sveta_85 [38]

Answer:

Choise B..... 38.8

Step-by-step explanation:

trust

3 0
3 years ago
A tiger shark swims an average of 32 miles per hour. About how many hours will it take the tiger shark to swim 8 miles?
elena55 [62]

Answer:

0.25 hours, or 15 minutes

Step-by-step explanation:

Ok, so the rate is 32 miles per hour, so it would take about 1/4 of a hour to go 8 miles (8/32= 0.25)

6 0
3 years ago
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