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ad-work [718]
3 years ago
13

Which expression has a positive value?

Mathematics
1 answer:
FrozenT [24]3 years ago
7 0

Answer:

(negative 5) (negative 9)

Step-by-step explanation:

minus×minus=plus

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PLEASE HELP
Korolek [52]

Answer:

v=2 s=5

Step-by-step explanation:

a) v=volleyball s=soccer

s × v = 7

" the soccer (s) practice lasts 1 hour (1) more than (+) twice as long (2) as the volleyball (v) practice; this simplifies to: s = 1 + 2v

b) substitute equation for soccer for s

(1 + 2v) + v = 7

solve for v

1 + 3v = 7   (2v + v = 3v; that's where the 3v comes from)

we subtract 1 from both sides

3v = 6

we divide 3 from both sides

v=2

solve for s

since we know what v equals, we substitute it in

s + 2 =7

subtract 2 from both sides

s = 5

5 0
3 years ago
Answer number 3 and 4 please. Thank you.
notka56 [123]
3:80
4:20 those are the answers
5 0
2 years ago
Last week you watch four hours of TV this week you watched eight hours TV place points on the graph to show your activity for la
LUCKY_DIMON [66]

Answer:

Step-by-step explanation:

You should place a point on the graph at 4 for four hours of TV last week. And place a point at 8 for eight hours of TV this week.

8 0
3 years ago
Solve and show work
Alika [10]
84 gallons/(2.8 gpm) = 30 minutes
6 0
3 years ago
Expand (a+b)^7 using pascal triangle
Inga [223]

(a+b)^7= a^7+ 7a^7b+ 21 a^6b²+ 35a^5b³+ 35 a⁴b⁴+ 21 a³b^5 + 7a²b^6 + b^7

8 0
3 years ago
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