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Sveta_85 [38]
3 years ago
15

If there are 19 red marbles for every black marble in a bag of 120 marbles, how many red marbles are in the bag?

Mathematics
2 answers:
lesya692 [45]3 years ago
4 0

Answer:6

Step-by-step explanation:

vodka [1.7K]3 years ago
3 0

Answer:

6

Step-by-step explanation:

120/19=6

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A family uses 15 gallons of milk every 3 weeks. At that rate, about how many gallons of milk will they need to purchase in a yea
saw5 [17]

Answer:

87 gallons

Step-by-step explanation:

5 gallons: 3 weeks = x gallons: 52 weeks

5/3 = x/52

3x = 260

x= 86.6, about 87 gallons

8 0
3 years ago
Answer any of the following:
Volgvan
<span>1. Solve the system by substitution -2x+y=-11, 3x-4y=11. 
</span>-2x+y=-11<span>
y = 2x-11

</span><span>3x-4y=11
</span>3x-4(2x-11)=11
3x -8x + 44 = 11
-5x = -33
<span>x =33/5
y = 11/5

</span><span>2. Solve the system using elimination- 2x+6y=-12, 5x-5y=10. 
</span><span>(-2x+6y=-12)5
</span>-10x + 30y = -60

<span>(5x-5y=10)2
</span>10x - 10y = 20

Adding the two equations,
<span>-10x + 30y = -60
</span><span>10x - 10y = 20
</span>
20y = -40
y = -2
x = 0

<span>3. What is the solution of the following system?-3x-2y=-12, 9x+6y=-9. 
</span><span>-3x-2y=-12
</span>y = -3/2 x + 6

<span>9x+6y=-9
</span>y = -3/2 x - 3/2

Since the slopes are equal then they are parallel lines so they never meet at one point.

4 0
3 years ago
A town is going to use its property tax records to pick
natita [175]
I believe B or C but that’s a straight guess. i would say B just because if you live like outside of town then ur screwed
5 0
2 years ago
Identify the terms and like terms 10x + 5 + 3x + 1
Svetach [21]

Answer:

10x +3x are like terms

5+1 is terms

Step-by-step explanation:

8 0
2 years ago
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Fill in each blank for the function f(x) = 3x - 6.
IRINA_888 [86]

Answer:

reeee :(

Step-by-step explanation:

7 0
3 years ago
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