3 years ago

A colony of insects doubles every day. If the colony has 5 insects todayHow many will be present in 20 days?

1 answer:

5 0

Answer: b is the correct answer.

Step-by-step explanation:

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maw [93]

Answer:

Step-by-step explanation:

what grade are you on lemme help you

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3 years ago

Hatshy [7]

We have 60% and 85% antifreeze
We need 140 gallons of 70% antifreeze
x + y = 140
.60x + .85y = .70 * 140

X = 84 gallons 60%
Y = 56 gallons 85%

6 0

3 years ago

weeeeeb [17]

Let us draw a picture to make the things more clear.

Attached is the image.

We have been given that

$\angle acd = 60 ^{\circ}$

Therefore, we have

$\angle dcb =90- 60= 30 ^{\circ}$

Now, in triangle bcd, we have

$\tan30 = \frac{5}{cd}\\
\\
\frac{1}{\sqrt 3}=\frac{5}{cd}\\
\\
cd=5\sqrt 3$

Now, in triangle acb, we have

$tan 60 = \frac{ad}{5\sqrt3} \\
\\
\sqrt 3= \frac{ad}{5\sqrt3}\\
\\
ad= 5\sqrt3 \times \sqrt 3\\
\\
ad= 5\times 3\\
\\
ad=15$

Thus, ad is 15 cm.

4 0

3 years ago

arlik [135]

Answer:

6.5

Step-by-step explanation:

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3 years ago

Mandarinka [93]

Your answers are:

W= 5
L= 13

Good luck!

7 0

3 years ago