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ella [17]
2 years ago
13

26. A football team ran four plays. The

Mathematics
1 answer:
-Dominant- [34]2 years ago
8 0

Answer:

-10 would be your answer.

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A box of nails weighs 130 pounds when it is 2/3 full. It weighs 74 pounds when it is 3/8 full. What is the weight of the box?
NeTakaya
Let the weight of the full Volume of nails in the box be W.
Let the weight of the box be B.

2/3 W  + B =  130 ........i          From the first statement.
3/8 W  + B =      74 ......ii         From the second statement.

Equation (i)  Minus (ii)

2/3 W  - 3/8 W + B  - B =  130 - 74
(16W  - 9W) / 24                 = 56

7W / 24  =  56.
W        =  56 * 24 / 7
W        =    192  Pounds.

Substituting V = 64 in equation (i)
2/3 W  + B =  130
2/3 * 192  + B =  130
2 * 64  + B =  130
128  + B =  130
B =  130 -128 = 2.

Therefore, weight of box, B = 2 pounds.

7 0
3 years ago
HELP ME FIND X AND Y: 2x = 4y + 6 and 3x - y = -1
Naddika [18.5K]

Answer:

x = -1

y = -2

Step-by-step explanation:

To get y by itself:

3x - y = -1

-y = -1 - 3x

y = 1 + 3x

Solve for x with substitution:

2x = 4(1 + 3x) + 6

2x = 4 + 12x + 6

2x = 10 + 12x

-10x = 10

x = -1

Plug the x value into 3x - y = -1

3(-1) - y = -1

-3 - y = -1

-y = 2

y = -2

8 0
2 years ago
Read 2 more answers
An IV infiltrates with 330 mL remaining in the bag. It was restarted at 1015 at a rate of 30 mL/hr. What is the IV completion ti
DochEvi [55]

Answer:

11 hours

Step-by-step explanation:

I came up with this answer by dividing the IV infiltrate in the bag by the rate. This gave the completion time.

Volume of IV infiltrate = 330ML

Rate at which it was running = 30 ML/hour

The IV completion time = volume/rate

= 330 ML/30 ML

= 11 hours

Therefore the IV completion time is 11 hours.

3 0
3 years ago
In the given figure, show that angle a+angle b + angle c+angle d=360​
djverab [1.8K]

Answer:

∠a + ∠b + ∠c + ∠d = 360°

Step-by-step explanation:

∠a + ∠c = 180°

∠b + ∠d = 180°

Therefore, 180 + 180 = 360°

8 0
3 years ago
Can the values be added or subtracted? If one value needs to be converted to another, describe the conversion.
Nastasia [14]
C. the values can be added after making a conversion of units because they both measure length.
8 0
3 years ago
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