4 years ago

If a number is multiplied by four, it gives the same result as 2/7 of 500 for. What is the number?

1 answer:

3 0

Sounds as tho you meant:

4n = (2/7)(500)
1000
If that's the case, then 4n = ------------
7
1000 250
or n = ------------ = --------- (answer)
28 7

Check: does 4(250/7) equal (2/7)(500)? YES.

You might be interested in

Identify the zeros for the function and sketch a graph. y=x(x-2)(x+3)

damaskus [11]

The product is equal to zero if one of the factors is equal to zero.

Therefore:

$y=x(x-2)(x+3)\\\\x(x-2)(x+3)=0\iff x=0\ \vee\ x-2=0\ \vee\ x+3=0\\\\\boxed{x=0\ \vee\ x=2\ \vee\ x=-3}$

5 0

4 years ago

In a sports equipment locker, there are 81 balls and 45 baseball mitts. Write the ratio of balls to baseball

Romashka-Z-Leto [24]

Answer: 9:5

Step-by-step explanation:

81:45 I first just divided them both by three and got 27:15 then they were both divisible by 3 so then I got 9:5

6 0

3 years ago

Need help with this im confused

Jet001 [13]

Answer:

$-\frac34 -\frac14 i$

Step-by-step explanation:

Let's start with distributing: $\frac1{4i}-\frac{3i}{4i}$ Simplify i with i in the second term, and rearrange. $-\frac34 +\frac1{4i}$ . Since i in the denominator looks ugly, let's multiply top and bottom by i. $-\frac34 +\frac i{4i^2} = -\frac34 +\frac i{4(-1)} =-\frac34 -\frac14 i$ . The middle passage is based on the fact that, by definition, $i^2=-1$