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yaroslaw [1]
2 years ago
9

Use the working backward method to find the solution of the equation.

Mathematics
2 answers:
shusha [124]2 years ago
4 0
Y=2 explanation because -1 on both sides divide both sides by 7
Dahasolnce [82]2 years ago
3 0

Answer:

y=2

Step-by-step explanation:

7y-1=13

+1 +1

7y=14

/7 /7

y=2

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Solve a,b,c,d and e.​
Westkost [7]

Answer:

Step-by-step explanation:

a)

 428721

Place of 2's 10s and 10,000s

Therefore its value is 20 and 20,000

Product of the place value = 20 x 20,000 = 4,00,000

b)

37,20,861

Place of 7 is 1,00,000

Therefore the place value is 7,00,000

c)

Greatest 7 digit number is 99,99,999

Adding 1 to it = 99,99,999 + 1 = 1,00,00,000

d)

85642 = 80000 + 5000 + 600 + 40 +2

e)

round off 85642  to nearest thousand = 86,000

7 0
3 years ago
(30 points)Red Rocks Parks is an open air amphitheater carved out of rock, near Denver Colorado. The amphitheater has 69 rows of
Kobotan [32]

Answer:

En la última fila de la zona general hay 98 asientos y en la zona preferencial hay 564 asientos.

Explicación paso a paso:

= 1 + − 1 ×

40 = 20 + 40 − 1 × 2

40 = 20 + 39 × 2

40 = 20 + 78

40 = 98

=  (1 + )  2 ×

12=  (36 + 58)  2 ×12

12 = 47 × 12

12 = 564

Step-by-step explanation:

dame corona

5 0
3 years ago
Does anybody know a website that can help me study for a geometry exam on proofs? My class gave be the information, I just don't
pshichka [43]
I would try Khan Academy.  He does very good explainations
5 0
3 years ago
Which statement is true?
ozzi
D (2 and 4), vertical angles oppose eachother, and are always congruent (identical).
7 0
3 years ago
Read 2 more answers
Noah has a total of 47 video games. He only buys action and sports games. He has 21 more action games than sport games. How many
Zanzabum
A-action games
s-sports games

a+s=47
a=s+21

I replace the action games in the first equation

s+21+s=47
2s+21=47
2s=47 - 21
2s=26
s=26:2
s=13 number of sport games
a=13+21
a=34 number of action games
8 0
3 years ago
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