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3 years ago

15

PLEASE HELP ME!!

2 answers:

quester [9]3 years ago

5 0

2 < n ?

The way you worded it confused me but I assume this is what your talking about

Citrus2011 [14]3 years ago

5 0

2 < n because 2 is less than

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OverLord2011 [107]

What is the question?

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3 years ago

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Which of the following is equivalent to V-75?

Sindrei [870]

Answer:

Step-by-step explanation:

$\sqrt{-75}=i\sqrt{5*5*3}\\\\=5i\sqrt{3}$

3 0

3 years ago

jim and lisa had a total of $300. After jim boughy a jacket with 2/3 if her money,she had $90 less than lisa. find the cost of t

Yuri [45]

Answer:

$84

Firstly, what we must do, is establish a system of equations:

$\frac{2}{3}J = L -90$

$J + L = 300$

Due the circumstances, it is decided we will use the method of substitution:

$\frac{2}{3}J = L - 90$

$\frac{2}{3}J + 90 = L$

↓

$J + \frac{2}{3}J + 90 = 300$

Now, we solve the 2-variable equation above:

$J + \frac{2}{3}J + 90 = 300$

$J + \frac{2}{3}J = 300 - 90$

$J + \frac{2}{3}J = 210$

$J(3) + (\frac{2}{3}J)(3) = 210(3)$

$3J + 2J = 630$

$5J = 630$

$J = \frac{630}{5}$

$\bf~J = 126$

Now, we must see how much money each one of them had & the price of the jacket:

Now we know that Jim had $126. In other words, $126 is $\frac{3}{3}$ of his money (total money).

So, if Jim has $126, which corresponds to $\frac{3}{3}$ of his money, $\frac{2}{3}$ of his money is:

$\frac{126}{3} = 42$

$126 * \frac{2}{3} = 42 + 42$

$\bf~126 * \frac{2}{3} = 84$

Hope it helped,

BiologiaMagister

3 0

3 years ago

2.4z + 1.2z -6.5 = 0.7<br> Solve for z

eduard

2.4z + 1.2z = (2.4 + 1.2)z = 3.6z;
We have 3.6z - 6.5 =0.7 / +6.5;
3.6z = 7.2 / ×10;
36z = 72 / ÷36;
z = 2.

7 0

3 years ago

What is the Answer to this

kari74 [83]

First collect like terms for x^2:
x^2 + 3x^2 = 5x^2
Then collect like terms for x:
-2x + 5x = 3x
Collect like terms for normal numbers:
7 + - 3 = 4

Put them altogether:

5x^2 + 3x + 4

5 0

3 years ago