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Zigmanuir [339]
3 years ago
8

David bought three DVDs and four books for $40 at a yard sale. Anna bought one DVD and six books for $18. how much did each DVD

and book cost ?
Mathematics
1 answer:
Dvinal [7]3 years ago
5 0

Answer: Anna bought 1 DVD and 6 books for $18. How much did each DVD and book cost? ... Your equations (2 unknowns and two equations, d is for a DVD and b is ... For Anna: d+6b=18 ... Combined equation: −14b=−14 and b=1 (means that each book worths $1). Now for DVD price,

Step-by-step explanation:

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jarptica [38.1K]

Answer:

should be 3

Step-by-step explanation:

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3 years ago
colin has an ice cube tray with 12 identical compartments. Each compartment is a prism that is 4 cm. long, 3 cm. wide, and 3 cm.
a_sh-v [17]
Volume = length x width x height
V = 4 x 3 x 3
4 x 3 = 12
V = 12 x 3
V = 36 cubic cm.
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3 years ago
An equilateral triangle has one length of 3 meters. What are the lengths of the other two sides?​
topjm [15]

Answer:

the other sides are 3 meters as well

Step-by-step explanation: Since it is an equilateral triangle, all the sides will be the same. An Isosceles triangle has two of the sides the same and one different. A scalene triangle has all of the sides different. So, the rest of the sides are 3 meters.

5 0
3 years ago
Anjali paid $8 for a salad. She now has<br> $37. With how much money did she start?
sleet_krkn [62]

Answer:

Below.

Step-by-step explanation:

37+8= 45

45-8=37

so 45.

8 0
3 years ago
Read 2 more answers
Solve by elimination <br><br> { -3x - 10y = -4<br> { x - 5y = 18
mylen [45]


{-3x - 10y = -4} Answer: x = − 10/3y + 4/3

{x - 5y = 18} Answer: x = 5y + 18
5 0
3 years ago
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