All categories

2 years ago

Please help will give 30 points

Mathematics

1 answer:

swat322 years ago

5 0

2.) 8/12 + 8/4= 2 2/3

3.) 2/8 + 6/10= 17/20

4.) 1/6 + 6/18 = 1/2

Hoped this helped!

You might be interested in

The value of zlatans house has increased by 7% His house is now valued at ?749,000 Work out the value of the house before the in

wolverine [178]

Answer:

$440588.24

Step-by-step explanation:

Let x be the value of Zlatans house before the increase.

We are told that the value of Zlatans house has increased by 7%. His house is now valued at $749,000. This means that value of house(x) before increase plus 7% of x will be equal to $749000.

We can set this information in an equation as:

$x+\frac{70}{100}x=74900$

$x+0.7x=74900$

Upon combining like terms we will get,

$(1+0.7)x=74900$

$1.7x=74900$

$x=\frac{749000}{1.7}$

$x=440588.2352941176470588\approx 440588.24$

Therefore, the value of the house before increase will be $440588.24.

4 0

3 years ago

Question 22 of 25

mote1985 [20]

Answer

Step-by-step explanation:

Is the answer !

5 0

3 years ago

Read 2 more answers

What is the equation of the line that passes through the point ( − 4 , 8 )and has a slope of − 1/4

JulsSmile [24]

Answer:

y = -1/4x + 7

Step-by-step explanation:

Plug in the point and slope into y = mx + b, and solve for b:

y = mx + b

8 = -1/4(-4) + b

8 = 1 + b

7 = b

Plug in the slope and b into y = mx + b:

y = mx + b

y = -1/4x + 7

So, the equation of the line is y = -1/4x + 7

8 0

3 years ago

(−5)3x7(yz)4 / (3)2x2y8z2

g100num [7]

Answer:

$\dfrac{(-5)3x^7(yz)^4}{(3)2x^2y^8z^2}=\dfrac{-5x^5z^2}{2y^4}$

Step-by-step explanation:

Given:

The expression to simplify is given as:

$\frac{(-5)3x^7(yz)^4}{(3)2x^2y^8z^2}$

In order to simplify this, we have to use the law of indices.

1. $(ab)^m=a^mb^m$

So, $(yz)^4=y^4z^4$

Substitute this value in the above expression. This gives,

$=\dfrac{(-5)3x^7y^4z^4}{(3)2x^2y^8z^2}\\\\\\=\dfrac{-15x^7y^4z^4}{6x^2y^8z^2}......(-5\times 3=15\ and\ 3\times 2=6)$

Now, we use another law of indices.

2. $\frac{a^m}{a^n}=a^{m-n}$

So, $\frac{x^7}{x^2}=x^{7-2}=x^5,\frac{y^4}{y^8}=y^{4-8}=y^{-4}, \frac{z^4}{z^2}=z^{4-2}=z^2$

Substitute these values in the above expression. This gives,

$=\frac{-15}{6}\times x^5\times y^{-4}\times z^2\\\\=\frac{-5x^5y^{-4}z^2}{2}$

Finally, we further simplify it using the law $a^{-m}=\frac{1}{a^m}$

So, $y^{-4}=\frac{1}{y^4}$

Therefore, the given expression is simplified as:

$\dfrac{(-5)3x^7(yz)^4}{(3)2x^2y^8z^2}=\dfrac{-5x^5z^2}{2y^4}$

5 0

3 years ago

Do 4x and 15 + x have the same value when x is 5? How do you know?

alexandr402 [8]

Answer:

yes

Step-by-step explanation:

If x = 5,

4x=4*5=20

15+x=15+5=20

They're both the same.

4 0

2 years ago

Read 2 more answers