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3 years ago

Which expression is equivalent to -2,글금1 0 23

Mathematics

1 answer:

den301095 [7]3 years ago

3 0

$\bf \cfrac{-3}{4}\cdot \cfrac{7}{-2}\div\cfrac{3}{-8}\implies \cfrac{-3}{4}\cdot \cfrac{7}{-2}\cdot \cfrac{-8}{3}\implies \cfrac{-3}{4}\cdot \cfrac{-8}{3}\cdot \cfrac{7}{-2} \\\\\\ \cfrac{-3}{3}\cdot \cfrac{-8}{4}\cdot \cfrac{7}{-2}\implies -1\cdot \cfrac{-2}{1}\cdot \cfrac{7}{-2}\implies \cfrac{2}{1}\cdot \cfrac{7}{-2}$

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How do I find the slope of the line containing the two points (9,0) and (-5,6)

deff fn [24]

Slope Formula: $\frac{y_2-y_1}{x_2-x_1}$

So using the slope formula, plug in the two points and solve for it as such:

$\frac{0-6}{9-(-5)}=-\frac{6}{14}\div \frac{2}{2}=-\frac{3}{7}$

The slope is -3/7.

7 0

4 years ago

X+2(x+3(x+4(x+5)))=153

Allushta [10]

Answer:

$x=1$

Step-by-step explanation:

Here first open the inner parentheses and use the distributive property,

$4(x+5)=4x+20\\\\(x+4(x+5))=(x+4x+20)=(5x+20)\\\\3(x+4(x+5))=3(5x+20)=15x+60\\\\(x+3(x+4(x+5)))=(x+15x+60)=16x+60\\\\2(x+3(x+4(x+5)))=2(16x+60)=32x+120\\\\x+2(x+3(x+4(x+5)))=x+32x+120=33x+120\\\\\\Hence\ x+2(x+3(x+4(x+5)))=x+32x+120=33x+120\\\\\Rightarrow 33x+120=153\\\\33x=153-120\\\\33x=33\\\\x=1$

3 0

3 years ago

Please answer if you know the solution. Thx

LenKa [72]

Answer:

the first blank is 10

and the second blank is 5

Step-by-step explanation:

5 0

3 years ago

10.) It costs $5 to enter the arcade and $0.75 for every game you play once inside.

Hoochie [10]

Answer:

y=0.75x+5

Step-by-step explanation:

x=20

y=20

20-5=15

15/0.75=20

20 games

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3 years ago

Read 2 more answers

In a chemistry lab, you have 2 vinegars. One is 5% acetic acid, and one is 6.5% acetic acid. You want to make 200 ml of a vinega

Iteru [2.4K]

We have 5% and 6.5% acetic acid solutions and we need 200 ml of 6% acetic acid.
Set up two equations:
f means 5% and s means 6.5%
A) f + s = 200
B) .05f + .065s = (.06 * 200)
Multiplying equation A by -.05
A) -.05f -.05s = -10
B) .05f + .065s = 12 then adding both equations:
.015s = 2
 we need 133.33 ml of 6.5% acetic acid and
66.67 ml of 5% acetic acid solution.
 
Source:
http://www.1728.org/mixture.htm

8 0

3 years ago

Which expression is equivalent to -2,글금1 0 23​

Which expression is equivalent to -2,글금1 0 23