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3 years ago

5. A video store charges a monthly

1 answer:

8 0

Answer: 8 movies

12 + 1.50x = 3x

Move the variables to one side

12 = 1.50x

Isolate x

8 = x

Check:

3(8)= 24

12.00 + 1.50(8) = 24

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Use substitution to determine which of the following values for y are in the solution set of the inequality:

aleksandrvk [35]

Answer:

y = 30 and y = 40

Step-by-step explanation:

All you have to do is add 10 and 12, and see if its is greater than 34. Add the rest of the listed numbers to 12.

5 0

3 years ago

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Please help... this is super complicted

nataly862011 [7]

Answer:

(a) 412 +A -B

(b) 412 +A -B + (A-20) -(B+14)

Step-by-step explanation:

Water flowing in adds to the amount in the reservoir. Water flowing out subtracts from the amount in the reservoir.

(a) 412 + A - B . . . . at the end of January

(b) Flowing in was (A -20), flowing out was (B +14). In February, we start with the amount at the end of January.

(412 +A -B) +(A-20) -(B +14)

412 -20 -14 +2A -2B = 378 +2A -2B

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3 years ago

A farmer wishes to enclose a rectangular pasture with 1200 ft of fence. He needs to divide this rectangle into two smaller recta

Minchanka [31]

Answer: $60,000 ft^2$

Step-by-step explanation:

Given

total of 1200 ft of fence is available

Suppose rectangular pasture has following dimension as shown in figure.

total perimeter

$P=4a+3b$

$1200=4a+3b$

$4a=1200-3b$

$a=300-\frac{3}{4}b$

Area of rectangle is

$A=2a\times b$

$A=2(300-\frac{3}{4}b)b$

$A=2[300 b-\frac{3}{4}b^2]$

For maximum area, differentiate A w.r.t b

$\frac{\mathrm{d} A}{\mathrm{d} b}=300-\frac{3}{2}b=0$

$300=\frac{3}{2}b$

$b=200 ft$

so $a=300-150=150\ ft$

so area is

$A=2\times 150\times 200$

$A=60,000 ft^2$

4 0

3 years ago

What is the common ratio of the following sequence?<br> -5, -20, -80,...

grin007 [14]

Answer:

Multiply by 4

Step-by-step explanation:

The next number would be -320

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4 years ago

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Please help me get the question right

asambeis [7]

Answer:

a. 2r+3c is less than or equal to 25

Step-by-step explanation:

The questions says he doesn't want to spend any more than 25 dollars, so he could spend exactly 25 or less. So it would be less than or equal to.

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3 years ago