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4 years ago

What is the answer to -3(x-3)

Mathematics

1 answer:

Aleks04 [339]4 years ago

4 0

Answer:

-3x+9

Step-by-step explanation:

we just need to do the distribution step

-3x-(-3) *(-3)=-3x+9

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Please help me asapp

Ede4ka [16]

Answer:

Step-by-step explanation:

$a = b \times h \\ \\ a = 9 \: \: {yd}^{2} \\ b = 6 \: \: yd \\ \\ 9 = 6 \times h \\ h = \frac{9}{6} \\ h = 1.5 \: \: yd$

I hope that is useful for you :)

6 0

3 years ago

W sklepie spożywczym jest 11,73 kg cukierków czekoladowych. Pierwszy klient kupił 48 dag cukierków. Drugi klient kupił 4/5 pozos

Elenna [48]

Answer:

<h2>The last costumers got 2.25 kilograms of chocolate candies.</h2>

Step-by-step explanation:

The question is

<em> There is 11.73 kg of chocolate candies in the grocery store. The first customer bought 48 dag of candies. A second customer bought 4/5 of the remaining quantity. The last three customers bought the same amount of candy. How much chocolate did the last customers get?</em>

<em />

Givens

The total amount of chocolate candies is 11.73 kilograms.
First costumer bought 48 dag of candies. (1 kg equals 100 dags)
Second costumer bougth 4/5 of the remaining.
Another three costumers bought the same amount of candy.

Let's transform 48 dag to kilograms.

$48dag \times \frac{1kg}{100dag}= 0.48 \ kg$

Therefore, the first costumer bought 0.48 kilograms of candies.

The remaining amount is: $11.73kg-0.48kg=11.25kg$

Now, we need to multiply the remaining amount of candies with 4/5

$\frac{4}{5} \times 11.25kg=9 \ kg$

Therefore, the second costumer bought 9 kilograms of chocolate candies.

At last, we need to find the new remaining part of candies, which is

$11.25-9=2.25 \ kg$

Therefore, the last costumers got 2.25 kilograms of chocolate candies.

4 0

3 years ago

40. A car stereo originally cost $268. It is now being sold for 85% of its original price. How much does

11Alexandr11 [23.1K]

Answer:

The stereo is now being sold for $227.80.

Step-by-step explanation:

To calculate percentage discounts, multiply the original price (268) by the discount percentage (.85). Make sure to put move the percentage value two places to the right before multiplying, as percentages are percentages of a whole.

268 * .85 = 227.8

7 0

3 years ago

Read 2 more answers

A water tank is in the shape of a right circular cone as shown above. The diameter of the cone is 10 feet, and the height is 15

Vsevolod [243]

Answer:

The rate at which the height of the water tank is changing is approximately 0.4244 ft/hour

Step-by-step explanation:

The given parameters are;

The diameter of the cone = 10 feet

The height of the cone = 15 feet

The rate at which water is leaking from the tank, (dV/dt) = 12 ft³/h

The volume of water in the tank = 27·π cubic feet

The volume V of a right circular cone with radius r and height h = 1/3×π×r²×h

The rate of change of the volume, dV, with time dt is given as follows;

The radius of the cone when the volume of the water in the tank is 27·π cubic feet is given as follows;

1/3×π×r²×h = 27·π ft³

The ratio of the height to the radius of the cone is h/r = 15/5 = 3

h/r = 3

∴ r =h/3

The volume of the cone, V = 1/3×π×r²×h = 1/3×π×(h/3)²×h = 1/27×π×h³ = h³/27×π

dV/dt = dV/dh × dh/dt

Which gives;

12 = d(h³/27×π)/dh × dh/dt = π×h²/9 × dh/dt

dh/dt = 12/(π×h²/9)

At 27·π ft³ = 1/27×π×h³ ft³, we have;

27 = 1/27×h³

27² = h³

h = ∛27² = 9

∴ dh/dt = 12/(π×h²/9) = 12/(π×9²/9) = 12/(π×9) = 4/(3·π) ≈ 0.4244 ft/hour

The rate at which the height of the water tank is changing ≈ 0.4244 ft/hour.

6 0

3 years ago

Liang is ordering new chairs and cushions for his dining room table A new chair cost $88 and a new cushion cost $12 shipping cos

Rasek [7]

Answer:

100c + 34

Step-by-step explanation:

6 0

4 years ago

Read 2 more answers

What is the answer to -3(x-3)​

What is the answer to -3(x-3)