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ikadub [295]
3 years ago
7

Help!!

Mathematics
1 answer:
saul85 [17]3 years ago
5 0

Answer:

40.47°, 49.53°

Step-by-step explanation:

Complementary angles add up to 90

7r + 5 + 8r + 9 = 90

15r + 14 = 90

15r = 76

r = 76/15

7r + 5 = 7(76/15) + 5 = 40 7/15

8r + 9 = 8(76/15) + 9 = 49 8/15

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In science class, the students observed 24 of the 300 frogs from the local aquarium. If 6 of the frogs observed had spots, how m
Alona [7]

Answer:

225 frogs

Step-by-step explanation:

Total population of frogs = 300 frogs.

Observed population of frogs = 24

6 of the 24 observed frogs had spots

Which means , the number of frogs that did not have spots = 24 - 6 = 18 frogs.

We were told to find how many of the total population can be predicted to NOT have spots. We would form a proportion.

If 24 frogs = 18 frogs with no spots

300 frogs = Y

Cross multiply

24Y = 300 × 18

Y = (300 × 18) ÷ 24

Y = 5400 ÷ 24

Y = 225 frogs.

This means out of 300 frogs, 225 frogs do not have spots.

Therefore, the total population that can be predicted to NOT have spots is 225 frogs.

the total population can be predicted to NOT have spots

3 0
2 years ago
The theory that it is reasonable to chose the simpler theory when choosing between two competing theories of equal explanatory v
Vesnalui [34]

Answer:

Occam’s razor theory.

Step-by-step explanation:

This theory is known as Occam’s razor theory.

It's a theory based on the principle whereby we give precedence to simplicity. It states that out of two competing theories, the one with the simpler explanation of an object should be embraced over the other. The reason is that the philosopher William of Ockham said that "objects are not meant to be multiplied beyond absolute necessity.”

This definition resonates with what is explained in the question.

Thus, the theory is as explained.

6 0
3 years ago
1. 5 13/30, 5 1/6, 5 68,90, order these fractions from least to greatest
ella [17]
You may find it easiest if you convert all the fractions to decimal form:

5.433...
5.166...
5.756

Now reorder these from smallest to largest.

Note:  I had to guess that by "68,90," you actually meant "68/90."
8 0
3 years ago
Read 2 more answers
HELP ASAP PLEASE
padilas [110]
I believe the answer is letter D
3 0
2 years ago
Read 2 more answers
Use the Distributive Property to solve the equation. 3x-5(x-4)=-9+5x+15
Norma-Jean [14]

Answer:

I keep getting no solution

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

5(x−4)=−9+5x+15

(5)(x)+(5)(−4)=−9+5x+15(Distribute)

5x+−20=−9+5x+15

5x−20=(5x)+(−9+15)(Combine Like Terms)

5x−20=5x+6

5x−20=5x+6

Step 2: Subtract 5x from both sides.

5x−20−5x=5x+6−5x

−20=6

Step 3: Add 20 to both sides.

−20+20=6+20

0=26

7 0
3 years ago
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