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2 years ago

The product of a number, I, and 0.28 is 13.44. Which equation matches this statement?

Mathematics

1 answer:

Kaylis [27]2 years ago

3 0

Answer:

Step-by-step explanation:

0.28x=13.44

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La mamá del profesor Ernesto tiene una bolsa con 3/4 kilogramos de arroz y guiso 2/3 de su contenido Que fracción de un kilogram

VARVARA [1.3K]

Answer: ella usó (1/2) kg de arroz para cocinar.

Step-by-step explanation:

La madre de Ernesto tenía una bolsa con 3/4 kg de arroz.

Sabemos que uso 2/3 de esa cantidad para hacer un guiso.

Entonces ella usó 2/3 de 3/4 kilogramos de arroz.

Entonces ella usó:

(2/3)*(3/4) kg de arroz.

Recordemos que esto se puede escribir como el producto entre los numeradores dividido por el producto de los denominadores:

(2*3)/(3*4) kg de arroz.

(6/12) kg de arroz

(1/2) kg de arroz.

Esto significa que ella usó (1/2) kg de arroz para cocinar.

8 0

3 years ago

the rectangular post shown at the right measures 2w-30 by w. the poster has an area of 5400 cm^2. what is The value of w ?

borishaifa [10]

Step-by-step explanation:

w(2w - 30) = 5400

2w²- 30w = 5400

2w² - 30w - 5400 = 0

(w - 60 ) ( w + 45 ) = 0

w= 60 w= - 45

only take the positive value

therefore w = 60

3 0

2 years ago

A right triangle is given with a missing value of t. It is stated that the triangle is an acute right triangle with angles 50∘ a

sergiy2304 [10]

Answer: t=20°

Step-by-step explanation:

1. By definition, the sum of the interior angles is 180 degrees.

2. Keeping the information above on mind, you can write the following expression:

$90+50+2t=180$

3. Now, you must solve for $t$ as following:

$140+2t=180\\2t=180-140\\2t=40\\t=\frac{40}{2}\\t=20$

4. Therefore, the value of $t$ is 20°

6 0

3 years ago

Determine the correct scientific notation form of the number. 327,000,000,000

aalyn [17]

So this "327,000,000,000" needs to be converted into scientific notation, in which the answer that I will get would be 3.27 10^11, in calculation (as in calculator), you will get 3.27E+11.

Hope this helped!

Nate

7 0

2 years ago

(15 POINTS!) The graph shows the distance a ghost crab can run over time the D equals the distance in meters and the t equal the

Maru [420]

Answer:

B. d = 5/3t

Step-by-step explanation:

The complete question is shown in the figure attached with.

We need to find the equation of direct variation using the graph. The general equation for a direction variation is:

y = kx

In this case, the variable along x axis is time in seconds i.e. "t" and the variable along y axis is distance in meters i.e. "d". So, the equation for this case would be:

d = kt

We need to find the value of "k" to complete this equation. For this we can use any point from the graph and substitute it in the above equation. From the graph we can see that the distance covered for time = 3 seconds is 5 meters. Substituting t =3 and d = 5 in above equation, we get:

5 = 3k

k = 5/3

Using the value of k in the above equation, we get:

$d=\frac{5}{3}t$

Therefore, option B gives the correct answer

7 0

3 years ago