3 years ago

-3(2k + 5) = -8k +29 what’s the answer and the way to solve this?

Mathematics

1 answer:

Annette [7]3 years ago

3 0

Step-by-step explanation:

-6k-15=-8k+29

-6k+8k=29+15

2k=14

2k/2=14/2

k=7

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What is the sum of the polynomials?<br> (6x+7+x^2)+(2x^2-3)

Oduvanchick [21]

Hai !
6x+7+x^2+2x^2-3
6x+7+x^2+2x^2+-3
combine like terms
6x+7+x^2+2x^2+-3
(x^2+2x^2)+(6x)+(7+-3)
=3x^2+6x+4
Cheers :3

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3 years ago

In 31 days, Gwen's dog sleeps 496 jours.If she sleeps that same number of hours each night, how many hours does she sleep per ni

g100num [7]

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3 years ago

Read 2 more answers

Estimate the product 48 x 32. Round each factor to the nearest ten.

nexus9112 [7]

Answer:

1500

Step-by-step explanation:

48-50

32-30

50 times 30 = 1500

3 0

2 years ago

Bobby’s uncle gave him 300 baseball cards. Each week, Bobby purchases 40 baseball cards to add to his collection.

ddd [48]

Answer:

C ) 40w + 300 > 7--

Step-by-step explanation:

Since he starts off with 300 cards, the equation must have +300 units. As he purchases 40 each week, the rate of change is 40w. Since his goal is over 700, look for >700.

Therefore 40w + 300 > 700

5 0

3 years ago

Make b the subject of this equation A = 1/2 x b x h

aalyn [17]

The equation is $b=\frac{2A}{h}$

Step-by-step explanation:

Let us revise how to make a variable subject of an equation

Write the equation and circle the variable you want to make it subject
Keep it in one side and move all other in the other side
Make the coefficient of the subject 1

∵ A = $\frac{1}{2}$ × b × h

∵ b is the subject

∴ Multiply the two sides by 2

∴ 2A = b × h

- Divide both sides by h

∴ $\frac{2A}{h}= b$

- Switch the two sides

∴ $b=\frac{2A}{h}$

The equation is $b=\frac{2A}{h}$

Learn more:

You can learn more about the equations in brainly.com/question/10708697

#LearnwithBrainly

8 0

3 years ago