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tatiyna
3 years ago
11

enter an inequality that represents the descrpiction, than solve. dave has $12 to spend on a $5 book and two birthday cards

(c) for his friends. how much can he spend on each card if he buys the same card for each friend.
Mathematics
1 answer:
padilas [110]3 years ago
6 0
It depends on how much the cards are

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Howhowhow?how??? how would you calculate
Liula [17]

Ok sooooooooooo

Lets say your two fractions are

13/26 and 20/40

you can divide the bottom number by the top one and if you get the same answer for both then they are equivalent. For these you get 2 for both, which means they are equivalent.

another example would be if your fractions are

2/5 and 4/10

You can say well 2*2 equals 4 And 5*2 equals ten so these are equivalent fractions.

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3 years ago
1. Jonathan bought 10lb of flour at $7.50. He had a store coupon for $0.79. What was the
Leviafan [203]

Answer:

6.71

Step-by-step explanation:

The solution should be $6.71 because when you subtract $7.50 and $0.79 you end up with $6.71.

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3 years ago
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7 0
3 years ago
Review the work showing the first few steps in writing a partial fraction decomposition.
Amanda [17]

Answer:

A = 2

B = -1

C = -9

Step-by-step explanation:

Given

2x\² + 15x + 19 = Ax\² + 8Ax + 16A + Bx + 4B + C

Required

Find A, B and C

Rearrange the expression

2x\² + 15x + 19 = Ax\² + 8Ax + 16A + Bx + 4B + C

2x\² + 15x + 19 = Ax\² + 8Ax + Bx + 16A + 4B + C

To do this, we simply compare the expressions on both sides of the equation.

So, we have:

Ax\² = 2x\² --- (1)

8Ax + Bx = 15x --- (2)

16A + 4B + C = 19 --- (3)

Divide both sides by x² in (1)

Ax\² = 2x\²

A = 2

Divide both sides by x in (2)

8Ax + Bx = 15x

8A + B = 15

Substitute 2 for A.

8*2 + B = 15

16+ B = 15

Make B the subject

B = 15 - 16

B = -1

Substitute 2 for A and -1 for B in (3)

16A + 4B + C = 19

16*2 + 4*-1 + C = 19

32 - 4 + C = 19

28 + C = 19

Make C the subject

C = 19 - 28

C = -9

6 0
3 years ago
Read 2 more answers
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