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GarryVolchara [31]
3 years ago
5

A baker can bake 8 dozen cookies in 20 minutes. At this rate, how many minutes will it take to make 30 dozen cookies?

Mathematics
1 answer:
Viktor [21]3 years ago
4 0
It would take about an hour and 20 minutes to make 30 dozen cookies.
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Find 3 consecutive even numbers where the product of the smaller two numbers is 40 less than the square of the largest number.
Marina86 [1]
3\ consecutive\ even\ numbers:\ 2x,2x+2,2x+4\\\\2x(2x+2)+40=(2x+4)^2\\\\
4x^2+4x+40=4x^2+16x+16\\\\
4x^2-4x^2+4x-16x=16-40\\\\-12x=-24\ \ |:(-12)\\\\x=\frac{24}{12}=2\\\\2x=2=4\\\\2x+2=6\\\\2x+4=8\\\\Numbers\ are\ 4,6,8.
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Convert to a percent: 13/8
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What you're doing is just dividing 13/8 to find the decimal (1.625) and then divide that number by 100. 162.5%
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2 years ago
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64/1 or 64 heartbeats in 1 minute
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3 years ago
What 1% out of 100,000,000? Is it 1 million or 10,000?
larisa [96]

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Step-by-step explanation:

100,000,000 * 0.01

= 1,000,000

6 0
3 years ago
Read 2 more answers
Can you resolve this?<br><br> A= Area<br> P= Perimeter<br> AT= Total Area<br><br> plis help D:
Paraphin [41]

Answer:

in steps

Step-by-step explanation:

upper square:  P = 20x² + 8

<u>side: P/4 = 5x² + 2</u>

<u>A = side² = (5x² + 2)² = 25x⁴ + 20x² + 4</u>

Middle equilateral Triangle: A = x² + 4x + 4       base = 2x + 4

A = base x height / 2

(x + 2)² = 2 (x + 2) x height /2

<u>height = x + 2</u>

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Lower trapezoid: A₁ = 2x² + 24x + 40 = 2 (x² + 12x + 20) = 2 (x + 2) (x + 10)

A₁ = (x + 10)² = 2 (x + 2) (x + 10)

x + 10 = 2x + 4

x = 6

<u>A₂ = (2x + 4) (x + 10) / 2 = (16 x 16) / 2 = 128</u>

A₁ = (6 + 10)² = 256

<u>AT = 256 + 128 = 384</u>

6 0
3 years ago
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