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2 years ago

How many solutions does this equation has: 3x-5=-3

Mathematics

1 answer:

Valentin [98]2 years ago

8 0

Answer:

One solution

Step-by-step explanation:

The only solution is x = 2/3

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Marni danced in a contest to raise money for an animal shelter. Marni raised $30 plus $1.80 per minute that she danced. She rais

klio [65]

Total raised: 264

She raised 30 plus 1.80x (x being the number of minutes).

Equation: 264=1.8x+30

To solve for x, you need to isolate x. First, subtract 30 from both sides.

234=1.8x

Now, divide both sides by 1.8.

130=x

Marni danced 130 minutes.

I hope this helps :)

8 0

3 years ago

Read 2 more answers

Question will save this response.

serg [7]

Answer:

$r=\dfrac{PV}{nT}$

Step-by-step explanation:

The given equation is :

$PV=nrT$

Where

P is pressure

V is volume

n is no of moles

r is Gas constant

T is temperature

We need to solve the above equation for r.

Dividing both sides of the above equation by (nT). So,

$\dfrac{PV}{nT}=\dfrac{nrT}{nT}\\\\r=\dfrac{PV}{nT}$

So, the value of r is equal to $\dfrac{PV}{nT}$ .

6 0

3 years ago

Find the side of a cube whose surface area is 600cm²

expeople1 [14]

Answer:

10 cm

Explanation:

Surface area of cube = 600 cm^2

Side of a cube = ?

Formula:

Total S.A of cube = 6 x (side of cube)^2

= 6 . x^2

600 cm2 = 6 . x^2

x^2 = 600 / 6

x^2 = 100

x = 10 cm

The required side of a cube = 10 cm

8 0

3 years ago

Read 2 more answers

If you worked following times , How much total time did you work 8:15am to 10:30am and 10:40am-330pm

Margaret [11]

Well 15 is half of 30. And there are 60 minutes in an hour. Does that help. Just go by sixty.

5 0

4 years ago

You drive 132 miles in 3 hours. At

yarga [219]

Answer and Step-by-step explanation:

To solve, we need to find how many miles are driven in an hour.

Divide 132 by 3.

132/3 = 44

Now, we need to find how many hours it would take to drive 110 miles.

$\frac{44 miles}{1 hour} = \frac{110 miles}{? hours} \\\\$

Cross multiply.

$44(?) = 110$

Divide by 44.

$? hours = 2.5 hours$

So, it would take 2.5 hours to drive 110 miles.

#teamtrees #PAW (Plant And Water)

I hope this helps!

7 0

3 years ago