Two-year-old jia tells her grandmother that she ""sweeped"" the floor yesterday. The scenario illustrates that children.

Samuel has a collection of toy cars. His favorites are the 27 red ones which make up 60%, percent of his collection. How many to

Pie

0.60 × collection = 27 cars

collection = 27 cars / 0.60 . . . . divide by the coefficient of the variable

collection = 45 cars

Samuel has 45 cars in his collection.

8 0

3 years ago

suppose that $\star(n) = \left\{n - 2, n + 2, 2n, \frac {n}{2}\right\}$. for example, $\star(6) = \{3,4,8,12\}$. for how many di

kondaur [170]

Answer:

dont know sorry

Explanation:

3 0

3 years ago

A child riding a bicycle at 15 m/s accelerates at 3. 0 m/s/s for 4. 0 s. What is the child's speed at the end of this 4. 0 s int

mamaluj [8]

Answer:

The final speed of bicycle would be 27 m/s².

Step-by-step explanation:

Given :

$\small\red\bull$ Initial velocity (u) = 15 m/s
$\small\red\bull$ Acceleration (a) = 3.0 m/s²
$\small\red\bull$ Time = 4 seconds

To Find :

$\small\red\bull$ Final velocity (v)

Using Formula :

$\longrightarrow{\pmb{\sf{v = u + at}}}$

$\small\blue\star$ v = final velocity
$\small\blue\star$ u = initial velocity
$\small\blue\star$ a = acceleration
$\small\blue\star$ t = time taken

Solution :

Substituting the values in the formula to find the final velocity :

$\longrightarrow{\sf{v = u + at}}$

$\longrightarrow{\sf{v = 15 + (3.0 \times 4)}}$

$\longrightarrow{\sf{v = 15 + (3 \times 4)}}$

$\longrightarrow{\sf{v = 15 +(12)}}$

$\longrightarrow{\sf{v = 15 +12}}$

$\longrightarrow{\sf{v = 27 \: {m/s}^{2}}}$

$\star{\underline{\boxed{\red{\sf{v = 27 \: {m/s}^{2}}}}}}$

Hence, the final speed of bicycle would be 27 m/s².

$\rule{300}{1.5}$

3 0

3 years ago

What are ten different petroleum products that come fom crude oil?

atroni [7]

Refinery gases, Gasoline, Naphtha, Kerosene, Diesel Oil, Fuel Oil, Bitumen, Paraffin wax, Heating Oil, Jet Fuel.

3 0

3 years ago

Please Help, I am stuck on this question.

Morgarella [4.7K]

Answer:

(15/17 = sin ∠ JLK)

(first option listed)

Explanation:

the "sin ∠ JLK" is what we can simply think of as the inside measurement of angle/corner L. (L is the letter in the middle of ∠ JLK , and if you imagine drawing a line from J to L to K, you would see that the only angle you formed both sides of is corner L)

so, we are looking for the sin of L.

(SOH CAH TOA)

we know that

sin = opposite / hypotenuse

However, we do not have the opposite value of this triangle yet.

-----

we can solve the length of the opposite side with the Pythagorean theorem:

a² + b² = c²

8² + b² = 17²

64 + b² = 289

- 64 - 64

b² = 225

√b² = √225

b = 15

----

so, to solve for sin L,

(sin = opposite / hypotenuse)

we should divide the opposite (15) over the hypotenuse (17)

so, 15 / 17 = sin L

(15/17 = sin ∠ JLK)

6 0

2 years ago