I’ll give out brainliest just please help me out ((trigonometry))

Kyle has 125 marbles. Fifty of these marbles are red and the rest are other colors. What is the ratio of the number of red marbl

mr_godi [17]

50:75 or 50:125 I think is the answer

7 0

3 years ago

Read 2 more answers

The radius of a circle is 10 inches. What is the angle measure of an arc bounding a sector with area 15 square inches?

vova2212 [387]

Answer:

times it by pi

Step-by-step explanation:

4 0

3 years ago

There are currently 73 million cars in a certain country, decreasing by 1.7% annually.

Olin [163]

Answer:

17.6 years

Step-by-step explanation:

There are currently 73 million cars in a certain country, decreasing by 1.7% annually.

How many years will it take for this country to have 54 million cars? Round to the

nearest year.

We use the formula

y = a(1 - r)^t

a = Initial amount = 73 million cars

y = Future amount = 54 million cars

r = decreasing rate = 1.7 % = 0.017

t = time is unknown

54,000,000 = 73,000,000(1 - 0.017)^t

Divide both sides by 73,000,000

54,000,000/73,000,000 = (0.983)^t

0.7397260274 = (0.983)^t

Take the logarithm of both sides

log 0.7397260274 = Log (0.983)^t

log 0.7397260274 =t log (0.983)

t = log 0.7397260274/log 0.983

t = -0.13092910029/-0.00744648216

t = 17.5826783005 years

Approximately = t = 17.6 years

7 0

3 years ago

Two friends have a total of 60 coins. If the first fried gives 1/4 of his coins to the second friend, they will have an equal nu

kakasveta [241]

Answer:

The first friend has 40 coins.

Step-by-step explanation:

The statement says that the two friend have a total of 60 coins, which can be expressed as:

x+y=60 (1), where:

x is the first friend

y is the second friend

Also, the statement says that if the first friend gives 1/4 of his coins to the second friend, they will have an equal number of coins which means that if you subtract 1/4 of the coins the first friend has this would be equal to the number of coins the second friend has now, which is:

x-1/4x=y+1/4x

x-1/4x-1/4x=y

y=x-2/4x

y=x-1/2x (2)

Next, you have replace (2) in (1) and solve for x:

x+x-1/2x=60

2x-1/2x=60

3/2x=60

x=60/(3/2)

x=(60*2)/(1*3)

x=120/3

x=40

Finally, you can replace the value of x in (2) in order to find the value of y:

y=40-1/2(40)

y=40-(20)

y=20

According to this, the answer is that the first friend has 40 coins.

8 0

3 years ago

Sheldon wants to feed his strawberry plants 2 more times and his tomato plants two more times. He will use the same amounts of p

OLga [1]

Answer:

He doesn't have enough plant to feed strawberry 2 more times and tomato 1 more time

Step-by-step explanation:

On sunday , sheldon bought 4 1/2 kg of plant food. He uses 1 2/3 kg on his strawberry plants and used 1/4 kg for his tomato plants. b. Sheldon wants to feed his strawberry plants 2 more times and his tomato plants one more time. He will use the same amounts of plant food as before. How much plant food will be need? Does he have enough left to do so.

Total food bought = 4 1/2 kg

Strawberry feed = 1 2/3 kg

Tomato feed = 1/4 kg

Total food used on Sunday = Strawberry + tomato

= 1 2/3 + 1/4

= 5/3 + 1/4

= (20+3)/12

= 23/12 kg

Total food remaining after Sunday = Total food bought - used food

= 4 1/2kg - 23/12kg

= 9/2 - 23/12

= (54-23)/12

= 31/12 kg

= 2 7/12 kg

Sheldon wants to feed his strawberry plants 2 more times and his tomato plants one more time.

Strawberry = 2 × 1 2/3kg

= 2 × 5/3

= 10/3 kg

Tomato = 1 × 1/4kg

= 1/4 kg

Total food needed to feed strawberry two more times and tomato 1 more time

= 10/3 kg + 1/4 kg

= (40+3)/12

= 43/12 kg

= 3 7/12 kg

He will need 3 7/12 kg of food

He has 2 7/12 kg of food left

Therefore, he doesn't have enough plant to feed strawberry 2 more times and tomato 1 more time

4 0

3 years ago