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3 years ago

How do you know when to use the Estimation strategy vs the Guess and Check strategy ?

1 answer:

6 0

The guessing strategy only works when you don’t u don’t understand a question so I advise you NOT to do it , only when it’s necessary but the Estimation strategy works when you don’t have a any but a answer where theirs decimals or a answer that is close to one another and can be rounded

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60 pts! 2x + 34 = 4(x + 5) solve the equation for x.

erma4kov [3.2K]

Answer:

x=7

Step-by-step explanation:

expand 4(x+5): 4x+20

2x+34=4x+20

subtract 34 from both sides

2x+34-34=4x+20-34

2x=4x-14

subtract 4x from both sides

2x-4x=4x-14-4x

-2x=-14

divide both sides by -2

-2x/-2=-14/-2

x=7

7 0

3 years ago

¿que son los numeros naturales?

Inga [223]

Huh? Someone translate this for me plz

8 0

2 years ago

Read 2 more answers

Is -2/3(12b - 6 + 9b - 18) equivalent to 2b(b + 8)? Show your work.

AURORKA [14]

Answer:

No, they are not equivalent

Step-by-step explanation:

$\frac{-2}{3}(12b - 6 + 9b - 18) = \frac{-2}{3}(12b + 9b - 6 - 18)\\\\=\frac{-2}{3}(21b - 24)\\\\ = \frac{-2}{3}*21b -24*\frac{-2}{3}\\\\= -2*7b + 8*2\\\\= 2( -7b + 8)$

8 0

3 years ago

Read 2 more answers

A theater contains 460 seats and the ticket prices for a recent play were $52 for adults and $26 for children. If the total proc

Vlada [557]

Answer:

The answer to your question is There were sold 166 adult tickets and 294

children tickets.

Step-by-step explanation:

Data

Total number of seats = 460

cost for adults = a = $52

cost for children = c = $26

Total cost = $16276

Process

1.- Write equations to solve this problem

a + c = 460 Equation l

52a + 26c = 16276 Equation ll

2.- Solve the system of equation by substitution.

-Solve equation l for a

a = 460 - c

-Substitute a in equation ll

52(460 - c) + 26c = 16276

-Expand

23920 - 52c + 26c = 16276

-Simplify

-26c = 16276 - 23920

-26c = -7644

c= -7644/-26

c = 294

3.- Find a

a = 460 - 294

a = 166

8 0

3 years ago

Read 2 more answers

One month before the election, a poll of 630 randomly selected voters showed 54% planning to vote for a certain candidate. a wee

VikaD [51]

54% of 630 = 0.54 * 630 or approximately 340 of the 630 were planning to vote for the candidate.

51% of 1010 = 0.51 * 1010 or approximately 515 of the 1010 were planning to vote for the candidate.

This means that the voter support for this candidate increased.

7 0

3 years ago

How do you know when to use the Estimation strategy vs the Guess and Check strategy ?​

How do you know when to use the Estimation strategy vs the Guess and Check strategy ?