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Sloan [31]
3 years ago
5

How do you solve -7 times -3/5 times 15/7

Mathematics
1 answer:
S_A_V [24]3 years ago
5 0

Answer:

To turn this equation into a fraction, convert both numbers into a fraction when multiplying.

Step-by-step explanation:

-7 = -7/1 or 7/-1

7/-1 * -3/5 * 15/7

  • Multiply numerators and then multiply denominators and then simplify

(7*-3* 15)= -315

(-1*5*7) =-35

  • Simplify

-315/-35=9

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Someone please help me i literally cant do geometry
mote1985 [20]

Answer:

Just fail it.

Step-by-step explanation:

Sleep in class

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Get put into e2020 and get ALL the answers off of here.

4 0
3 years ago
A water tank is contaminated with a colony of 20 000 e.Coli bacteria. After 3 days the bacteria has grown to 28 284 e. Coli. Wha
nexus9112 [7]

Answer:

6

Step-by-step explanation:

The formula for doubling time is given as:

P(t) = Po(2)^t/k

Where:

P(t) = Population after time t = 28,284

Po = Initial Population = 20,000

t = time = 3 days

k = doubling time = ?

28,284 = 20,000 × (2)^3/k

Divide both sides by 20,000

28,284/20,000 = 20,000/20,000 × (2)^3/k

1.4142 = (2)^3/k

2^1/2 = (2)^3/k

Divide both sides by 2

1/2 = 3/k

Cross Multiply

k × 1 = 2 × 3

k = 6

Therefore, the doubling time(k) of the bacteria is 6

5 0
2 years ago
Can someone help me with this? My teacher said its a must in the homework and i cant find a solution.
andrezito [222]

Answer:

8x^3+28x^2-16x

Step-by-step explanation:

Volume of rectangular prism: l*b*h (l = length, b = breadth, h = height.)

Volume of rectangular prism:

(x+4)*(2x-1)*4x

4x\left(x+4\right)\left(2x-1\right)

Expand the two brackets using FOIL:

4x(x* \:2x+x\left(-1\right)+4* \:2x+4\left(-1\right))

4x\left(2x^2+7x-4\right)

Expand:

4x* \:2x^2+4x* \:7x+4x\left(-4\right)

8x^3+28x^2-16x

5 0
3 years ago
The Canadian labor force as of 2019 was 32.7 million. There were 30.9 million employed What the unemployment rate would be?
Afina-wow [57]

Answer:

The unemployment rate would be 5.5%.

Step-by-step explanation:

It is given that,

The Canadian labor force as of 2019 was 32.7 million.

There were 30.9 million employed

We need to find the unemployment rate.

Unemployed = labor force - employed

= 32.7 - 30.9

= 1.8 million

\text{unemployment rate}=\dfrac{\text{unemployed}}{\text{labor force}}\times 100\\\\=\dfrac{1.8}{32.7}\times 100\\\\=5.5\%

So, the unemployment rate would be 5.5%.

8 0
2 years ago
The distance between the point (- 5 ,-2) and y-axis is
Lorico [155]
Using our x coordinate to find the distance. It is because D distance is always positive.
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2 years ago
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