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nata0808 [166]
3 years ago
8

20 + 3x = -2(x+5) How do I solve this

Mathematics
1 answer:
ale4655 [162]3 years ago
8 0

Answer:

x= -10

Step-by-step explanation:

20+ 3x= -2(x+5)

20+3x= -2x +10

20+x=10

x= -10

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5 8/25 as a decimal show work
bekas [8.4K]

Answer:

Split the number into the whole number component and fraction component.

5 8/25= 5+8/25.

For the denominator, recognize that

25×4=100.

Multiple =4.

Multiply the numerator and the denominator by the multiple 4.

8×4/ 25×4.

Simplify.

32/100=0.32

Combine the whole number component with the decimal.

5+0.32=5.32

<h3>I hope this helps</h3>

3 0
3 years ago
The vertices of a triangle are located at X(-2,-1), Y(2,5) and Z(4,3). What is the perimeter of this triangle?
Lana71 [14]
If you plot the points you will find you have to use the distance formula. Pick out 2 pairs label them (x1,y1) (x2,y2) then plug it into the distance formula. The repeat for the other sides. So you should get (2,5) (4,3) plug into distance formula what is get it distance between those two points, then (4,3) (-2,-1) plug into distance formula to get an answer, lastly (-2,-1) (2,5) plug in. Now you have three answers add all together and here is your perimeter of a triangle.
3 0
3 years ago
Anita is eating popcorn at the movies. She eats 24 kernels in 10 minutes and 72 kernels in 30 minutes. Which TWO other ratios ca
Neporo4naja [7]

Answer:

\dfrac{96}{40} and \dfrac{120}{50}

Step-by-step explanation:

24 kernels in 10 minutes

In 1 minute she can eat \dfrac{24}{10}=\dfrac{12}{5}\ \text{kernels}

let x be the number of popcorn and minutes so the rate of eating popcorn is of the form

\dfrac{x12}{x5}

So, when x = 6 we get

\dfrac{6\times12}{6\times 5}=\dfrac{72\ \text{kernels}}{30\ \text{minutes}}

x can be any real number

\dfrac{10\times 12}{10\times 5}=\dfrac{120\ \text{kernels}}{50\ \text{minutes}}

\dfrac{8\times 12}{8\times 5}=\dfrac{96\ \text{kernels}}{40\ \text{minutes}}

Other two ratios can be \dfrac{96}{40} and \dfrac{120}{50}.

6 0
3 years ago
I don’t understand the question and don’t know the answer
katovenus [111]

Answer: I belive it would be 0, 0 ?

Step-by-step explanation:

3 0
3 years ago
What is the measure of the angle formed by the minute hand and hour hand of a clock in each case?
pentagon [3]

180°

120°

90°

hope this helps

8 0
3 years ago
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