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il63 [147K]
3 years ago
11

Lena had $12. She bought a pack of craft paper for $6 and a sharpener for $2. Which expression correctly shows the total money L

ena has left? A $12 − (−$6) + (−$2) B $12 + (−$6) − (−$2) C $12 − (−$6) − (−$2) D $12 + (−$6) + (−$2)
Mathematics
2 answers:
Angelina_Jolie [31]3 years ago
7 0
The anserw will be D
stiks02 [169]3 years ago
3 0
Lena spent $8 so she has $4 left. A isn't right because the answer to that is 16. B isn't right because it equaled 8. C equaled 20. D equaled 4 so the answer is D.
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I know how to do it just then one’s a bit confusing
lubasha [3.4K]

Answer:

208 ft^3

Step-by-step explanation:

Let the plane through the 4 ft X 4ft square at the top of the figure break the figure into 2 boxes, one has dimensions (8-7) by 3 by 4 = 1ft X 3ft X 4ft, and the other has dimensions 7 by 7 by 4 = 7ft X 7ft X 4ft.

They have volumes of (1)(3)(4) = 12 ft^3, and (7)(7)(4) = 196 ft^3, respectively, so the total volume = 12 + 196 = 208 ft^3, the answer.

7 0
2 years ago
Which equation gives the line shown on the graph?
SVEN [57.7K]

y = ½ x + 4

....................

4 0
3 years ago
Read 2 more answers
Why is 5/3 greater than 5/8
vazorg [7]
Since 5/3 is an inproper fraction it then becomes 1 2/3 and if you put both of the fractions into a common denominator you get 1 16/24>15/24
Please give me a thanks if you feels it is the right answer
7 0
3 years ago
Vern sold his 1964 Ford Mustang for $55,000 and wants to invest the money to earn him 3.6% interest per year. He will put some o
noname [10]

Answer: He should invest $44000 in fund A and $11000 in fund B.

Step-by-step explanation:

Let x represent the amount which he invested in fund A.

Let y represent the amount which he invested in fund B.

Vern sold his 1964 Ford Mustang for $55,000 and wants to invest the money to earn him 3.6% interest per year. He will put some of the money into Fund A that earns 2% per year and the rest in Fund B that earns 10% per year.. This means that

x + y = 55000

The formula for determining simple interest is expressed as

I = PRT/100

Considering fund A,

P = $x

T = 1 year

R = 2℅

I = (x × 2 × 1)/100 = 0.02x

Considering fund B,

P = $y

T = 1 year

R = 10℅

I = (y × 10 × 1)/100 = 0.1y

The interest that he wants to earn on the total amount in a year is 3.6%. The interest would be

I = (55000 × 3.6 × 1)/100 = 1980

Therefore,

0.02x + 0.1y = 1980 - - - - - - - - - -1

Substituting x = 55000 - y into equation 1, it becomes

0.02(55000 - y) + 0.1y = 1980

1100 - 0.02y + 0.1y = 1980

- 0.02y + 0.1y = 1980 - 1100

0.08y = 880

y = 880/0.08

y = 11000

x = 55000 - y = 55000 - 11000

x = 44000

4 0
3 years ago
Find the exact value of tan A in simplest radical form
AlladinOne [14]

Answer:

12.68 de

Step-by-step explanation:

8 0
2 years ago
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