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3 years ago

8

David feeds 32 fish to a mother seal and a baby seal. The mother seal has 5 fish for 3 fish the baby seal eats. How many fish do

es David feed the mother seal?

1 answer:

Maslowich3 years ago

3 0

David fed the mother seal 20 fishes

You might be interested in

Write the quadratic equation whose roots are 1 and -2, and whose leading coefficient is 3.

kirill115 [55]

Answer:

See below

Step-by-step explanation:

<u>The quadratic equation in factored form:</u>

a(x - α)(x - β), where a- leading coefficient, α and β - roots

<u>We have:</u>

a = 3, α = 1, β = -2

<u>Substitute them to get:</u>

3(x - 1)(x + 2)

<u>Converting this into standard form:</u>

3(x - 1)(x + 2) =
3(x² + x - 2) =
3x² + 3x - 6

3 0

2 years ago

Terry wants to divide his 120 baseball cards into two groups, so that the ratio of the number of cards in the first group to the

Naddik [55]

Let the number of cards in each group be 2x and 3x.
So,
2x + 3x = 120
5x = 120
x = 120 / 5
x = 24
Number of cards in each group is
2x = 2 × 24 = 48
3x = 3 × 24 = 72

7 0

3 years ago

The sum of 4 consecutive integers is 198 what is the fourth number in the sequence

miss Akunina [59]

The fourth number is 51. 48+49+50+51= 198.
THE NUMER IS 48

5 0

3 years ago

Employees at Happy Burger must place a special toy in at least 30% of the Burger Buddy kid's meals sold per day. The table shows

irga5000 [103]

On Monday the percentage was approx. 27% so they did not meet the goal
On Tuesday the percentage was approx. 28% <span>so they did not meet the goal
</span>On Wednesday the percentage was approx. 37% so they did meet the goal
On Thursday the percentage was approx. 37% so they did meet the goal
On Friday the percentage was approx. 34% so they did meet the goal

The employees met the goal 3 times within that week :)

6 0

2 years ago

1. A heterozygous white-fruited squash plant is crossed with a yellow-fruited plant, yielding 200 seeds. of these seeds, 110 pro

garri49 [273]

Answer:

Part 1 , not significant

Part II, significant

Step-by-step explanation:

Given that a heterozygous white-fruited squash plant is crossed with a yellow-fruited plant, yielding 200 seeds. of these seeds, 110 produce white-fruited plants while only 90 produce yellow-fruited plants

$H_0: Both colours are equally likely\\H_a: Both colours are not equally likely$

(Two tailed chi square test)

We assume H0 to be true and find out expected

If H0 is true expected would be 100 white and 100 yellow

Chi square = $\Sigma \frac{(O-E)^2}{E} \\=\frac{(110-100)^2}{100} +frac{(90-100)^2}{100} \\=2$

df = 1

p value = 0.152799

Since p value > 0.05 at 5% level we accept that the colours are equally likely

2)

Here observed are 1100 and 900

Expected 1000 & 1000

df = 1

Chi square = $\frac{20000}{100} =200$

p value <0.0001

These results are here statistically significant.

8 0

3 years ago