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irina [24]
3 years ago
11

Jackie wants to plant 2 1/2 rows of corn in her garden. She needs 3 1/4 ounces of seed for each row. How many totally ounces of

seed should Jackie buy?
Mathematics
1 answer:
dimaraw [331]3 years ago
7 0

Answer:

8\frac{1}{8} ounces.

Step-by-step explanation:

Given

Number of rows of corn =2\frac{1}{2} rows.

Seed required in each row is =3\frac{1}{4} ounces.

So, total seed required to plant corn in 2\frac{1}{2} rows is

Number of rows of corn \times Seed required in each row

=(2\frac{1}{2})\times(3\frac{1}{4})\\\\\ Multply\ denominator\ to\ whole\ number\ part\ then\ add\ that\ number\ to\ numerator\\\\=\frac{5}{2}\times\frac{13}{4}\\ \\Divide\ 65\ by\ 8\ we\ have\ 8\ with\ reminder\ 1\\\\=\frac{65}{8}\\\\So,\frac{65}{8} =8\frac{1}{8}

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Joe borrowed $8,000 from the bank at a rate of 7% simple interest per year. How much interest did he pay in 9 years?
AleksAgata [21]

Answer:

5,040.00

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 7%/100 = 0.07 per year.

Solving our equation:

A = 8000(1 + (0.07 × 9)) = 13040

A = $13,040.00

The total amount accrued, principal plus interest, from simple interest on a principal of $8,000.00 at a rate of 7% per year for 9 years is $13,040.00.

3 0
3 years ago
I don't get how to do this.
olasank [31]

Answer:

426 chickens

Step-by-step explanation:

let the pigs = x

the ducks = 2×x = 2x

the chickens = 3×(2x) = 6x

x +2x +6x = 639

9x=639

x = 639/9 = 71

the chickens = 6x = 6×71 = 426

8 0
3 years ago
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3x2+x-5=0 ? In simplest form
katovenus [111]
9x+x=5. or 9x+x+5=0 but probably the first one
3 0
4 years ago
According to the synthetic division below, which of the following statements are true?
makkiz [27]

Answer:

Correct options are A and D

Step-by-step explanation:

According to the synthetic division in the diagram you can write down the result of division:

2x^2+9x-7=(x-(-6))(2x-3)+11,\\ \\2x^2+9x-7=(x+6)(2x-3)+11.

Therefore,

  • when 2x^2+9x-7 is divided by x+6, the remainder is 11 (option D is correct). To find the remainder after division by x-6, you have to use another synthetic division. Actually, 2x^+9x-7=(x-6)(2x+21)+119, then the remainder is 119 (option C is false).
  • when x=-6, the expression x+6 is -6+6=0 and 2x^2+9x-7=0\cdot (2x-3)+11=11 (option A is correct). You cannot state the same when x=6 (option B is false).
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4 0
4 years ago
Read 2 more answers
How many solutions does have?<br> 1/2 ( 2p + 9 ) = -p + 5
JulijaS [17]

Answer:

Step-by-step explanation:

P + 4.5 = - p + 5

Bringing like terms on one side

P + p = 5 - 4.5

2p = 0.5

p = 0.5/2 = 0.25

In my opinion the answer is one solution

4 0
3 years ago
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