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4 years ago

2(1-x)=3(1+2x)+5how to solve this

Mathematics

2 answers:

IrinaK [193]4 years ago

8 0

Whew photo. Hope this helps.

Dimas [21]4 years ago

3 0

Start with the distributive property on both sides.

So It would become: 2-2x=3+6x+5

Add like terms: 2-2x=8+6x

Add two to both sides since its negative: 2=8+8x

Now subtract 8 from both sides: -6=8x

Now divide 8 on both sides: -6/8=8x/8

Since 8x/8 cancels out to 1x, it can be written as x

Simplify: -3/4

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Given a mean of 61.2 and a standard deviation of 21.4, what is the z-score of the value 45 rounded to the nearest tenth?0.8−0.90

kherson [118]

Given: Mean μ = 61.2 and standard deviation σ =21.4

The Z score of the value x=45 is given by

Z = $\frac{x - mean}{standard deviation}$

Z = $\frac{45 - 61.2 }{21.4}$

Z = $\frac{-16.2}{21.4}$

Z = -0.757

The z-score value for 45 rounded to nearest tenth is -0.8

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3 years ago

Which angle is complementary to

Lisa [10]

Answer:

angle GKF because it is complementary to angle JKG.

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3 years ago

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The 5 horses on Miranda's farm each eat 20 pounds of feed per day . How many tons of feed do the horses in in 30 days

satela [25.4K]

Answer:

1.5 tons

Step-by-step explanation:

First determine how much feed is eaten per day

5 * 20 lbs = 100 lbs per day

Then multiply by the number of days

30 * 100 = 3000 lbs

But the question asks tons, not lbs

We know there are 2000 lbs in a ton

3000lbs/ 2000lbs per ton = 1.5 tons

7 0

3 years ago

Factorizar Sumas de cubo 1) 8x³ + 1 2) 27a³ + b³ 3) 8x³ + 1,000

frutty [35]

$\huge{\mathbb{{ANSWERS}}}$

1.) 8x³ + 1

 $\underline{ \tt{{(2x + 1) \times (4 {x}^{2} - 2x + 1)}}}$

2.) 27a³ + b³

 $\underline{ \tt{{(3a + b) \times (9{a}^{2} - 3ab + {b}^{2})}}}$

3.) 8x³ + 1,000

$\underline{ \tt{{8(x + 5) \times ( {x}^{2} - 5x + 25)}}}$

Note: My anwer is base on my knowledge

Hopefully Help:)

#CarryOnLearning

_MafiaQueen4

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3 years ago

a goat is kept in a rectangular field 14.5 metre by 22 m. it is tied to a pole at the centre of the field with the chain that is

jolli1 [7]

Area of the rectangle: 14.5 x 22 = 319 square meters.

Area the goat can reach ( area of a circle): 3.14 x 2.5^2 = 19.625 square meters.

Now subtract the area of the circle from the area of the rectangle:

319 - 19.625 = 299.375 square meters. (Round the answer as needed.)

6 0

3 years ago