Answer:
x - the number of 5 points worth problems
y - the number of 2 points worth problems
The test has 29 problems.
Step-by-step explanation:
x - the number of 5 points worth problemsy - the number of 2 points worth problemsThe test has 29 problems.The test is worth 100 points.The system of equations:The solution:There are 14 problems worth 5 points and 15 problems worth 2 points.
x - the number of 5 points worth problems
y - the number of 2 points worth problems
The test has 29 problems. hope this helps
Answer:
14
Step-by-step explanation:
To find how many miles the submarine is going per minute, you need to divide the miles (56) by the minutes (4)
56/4 =
14 miles per minute
If the submarine has been descending for 1 minute, and descends at 14 miles per minute, you can conclude that it wend 14 miles below sea level in 1 minute.
Answer: 4 buffalos and 20 chickens (i think)
Step-by-step explanation:
2x+4y= 8
Ducks have 2 legs and buffalos have 4.
x= ducks y=buffalos
2(24-y)+4y=24
48-2y+4y=40
2y=8
y=4
4 buffalos
x+y=24
x=24-y
x=24-4
x=20
20 ducks
Answer:
2.5+7.5+-10n+-20
Step-by-step explanation:
Multiply everything on the inside by the number on the outside and put it together with addition signs.
-2.5(-3+4n+8)
-2.5*-3=7.5
-2.5(7.5+4n+8)
-2.5*4= -10
-2.5(7.5+-10n+8)
-2.5*8=-20
-2.5+7.5+-10n+-20
