2 years ago

4 divided by 2/5 is ______

Mathematics

2 answers:

-BARSIC- [3]2 years ago

8 0

Answer: 20\2 ou 10

Step-by-step explanation: 4:2/5 =10 because 2/5=0,4 and 4x0,4=10

enot [183]2 years ago

5 0

Answer:

Zero point four... 0.4

You might be interested in

I’m not sure how to do this

Cerrena [4.2K]

It's b because you have to round up

5 0

2 years ago

Read 2 more answers

On a blueprint, the bedroom wall is 6 in long. the scale factor is 1 to 24. what is the length of the actual wall?

andrezito [222]

Answer:

Hope This Helps! :)

6 0

2 years ago

Read 2 more answers

Two sides of a triangle measure 25 cm and 35 cm. What is the meadure of the third side?

SpyIntel [72]

Answer:

43cm

Step-by-step explanation:

use the pythagorean theorem:

a² + b² = c²

25² + 35² = c²

625 + 1225 = c²

1850 = c²

√1850 = c

43 cm = c

your a, b and c values depend on where the values are on the triangle.

4 0

3 years ago

Rationalize the denominator of square root of negative 49 over open parentheses 7 minus 2 i close parentheses minus open parenth

navik [9.2K]

The answer is the option d, which is: d) $\frac{-77+21i}{130}$

The explanation for this problem is shown below:

1. Smplify the denominator and rewrite the numerator in this form:

$\frac{7i}{7-2i-4-9i} \\\frac{7i}{3-11i}$

2. Multiply the denominator and the numerator by the conjugated $(3+11i)$ and simplify the expression, as following:

$\frac{7i(3+11i)}{(3-11i)(3+11i)} \\ \frac{21i+77i^{2}}{121+9} \\ \frac{-77+21i}{130}$

3. As you can see, you obtain the expression shown in the option mentioned above.

3 0

3 years ago

Juarez Distribution Company conducted a time study of Martha Smith’s job as an installer. Using the observation chart, find her

Alex777 [14]

Average time on task 1 = $\frac{3.4+4.1+6.5+8.1}{4}=5.5$ seconds
Average time on task 2 = $\frac{3.5+4.3+6.8+8.3}{4}=5.7$ seconds
Average time on task 3 = $\frac{4.3+4.1+6.5+7.9}{4}=5.7$ seconds
Average time on task 4 = $\frac{2.9+4.6+6.6+7.1}{4} =5.3$ seconds
Average time on task 5 = $\frac{3.6+4.2+6.7+8.1}{4}=5.65$ seconds

4 0

3 years ago