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skelet666 [1.2K]
3 years ago
10

Please help me answer this

Mathematics
1 answer:
rewona [7]3 years ago
4 0

Answer:

I don't understand could you explain it.

Step-by-step explanation:

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Peggy practices her gymnastics routine for a total of 21 hours. Each practice session is 1 3/4 hours. How many practice sessions
Phoenix [80]
12 sessions.
EXPLANATION:
each session is 1 3/4 hours.
We need enough sessions for 21 hours.

the equation is 1 3/4 x f = 21

using the multiplication property of equality, we can do 21 divided by 1 3/4

The answer is 12 sessions.

Hope it helps!
6 0
3 years ago
The reproduction function for a sardine is f(p) = −0.0005p2 + 4p, where p and f(p) are in hundred metric tons. Find the populati
tensa zangetsu [6.8K]

Answer:

Population (p) = 4,000 hundred metric tons

Size of the yield (f(p)) = 8,000 hundred metric tons

Step-by-step explanation:

The population of sardines 'p', for which the derivate of the function f(p) is zero, is the population that gives the maximum sustainable yield:

f(p) = -0.0005p^2 + 4p\\\frac{df(p)}{dp}=-0.0010p+4\\-0.0010p+4 =0\\p=4,000

The size of the maximum sustainable yield is:

f(p) = -0.0005p^2 + 4p\\f(4,000) = -0.0005(4,000^2) + 4*4,000\\f(4,000) = 8,000

Population = 4,000 hundred metric tons

Size of the yield = 8,000 hundred metric tons

3 0
3 years ago
An investor has an account with stock from two different companies. Last year, her stock in Company A was worth $5990 and her st
GenaCL600 [577]

Answer: 14.38%

Step-by-step explanation:

Worth of stock in Company A = $5990

Percent decrease = 20%

New worth = $5990 - (20% × $5990)

= $5990 - (0.2 × $5990)

= $5990 - $1198

= $4972

Worth of stock in Company B = $2450

Percent decrease = 8%

New worth = $2450 - (8% × $2450)

= $2450 - (0.08 × $2450)

= $2450 - $196

= $2254

Previous total worth = $5990 + $2450

= $8440

Total worth = $4972 + $2254

= $7226

The total percentage decrease in the investor's stock account will be:

= [($8440 - $7226) / $8440] × 100

=( $1214 / $8440) × 100

= 0.1438 × 100

= 14.38%

3 0
3 years ago
Read 2 more answers
PLEASE HELP I WILL GIVE BRAINLIEST
marysya [2.9K]

Answer:

54

Step-by-step explanation:

Multiply:

<em>37x37=72</em>

<em>Subtract:</em>

<em>180-72=108</em>

<em>Divide:</em>

<em>108/2=54</em>

6 0
2 years ago
Read 2 more answers
2/3 cup of oatmeal is needed to make 10 granola bars. how many such granola bars can be made with 20 cups of oatmeal? Kindly ple
aleksandrvk [35]
2/3 cup of oatmeal - 10 granola bars

When the number of cups of oatmeal increases, the number of granola bars also increases.
If you use for example twice as many cups of oatmeal, you'll make twice as many granola bars.
Therefore, the first step is to calculate how many times 20 cups of oatmeal is more than 2/3 cup of oatmeal. To do it, divide 20 by 2/3.

20 \div \frac{2}{3} = 20 \times \frac{3}{2}=\frac{60}{2}=30

You have 30 times as many cups of oatmeal, so you'll make 30 times as many granola bars.

10 \times 30= 300

300 granola bars can be made with 20 cups of oatmeal.
5 0
3 years ago
Read 2 more answers
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