All categories

3 years ago

How would you use estimation to evaluate this expression 10.2 x [(2x3.7)+8]

1 answer:

6 0

Round off the decimals to a sensible number. So 3.7 would be 4 and 10.2 would be 10. In this case, it would be (2 × 4 + 8) × 10 which is 160.

You might be interested in

The population of cats in a shelter decreased from 100 to 55. What is the percentage decrease of the shelter's cat population?

torisob [31]

Answer:

70%

Percentage of cats euthanized in shelters: 70%9 Dec 2020

5 0

2 years ago

David, Egil and Frances share money in the ratio 2:7:9. Frances gets ?80 more than David. Explain how you know Egil gets ?80.

Natalija [7]

Step-by-step explanation:

We have been given that David, Egil and Frances share money in the ratio 2:7:9.

Let 2x, 7x and 9x be the amounts of money that David, Agil and Frances get respectively.

We are told that Frances gets $80 more than David. So we can write this information in an equation as:

$9x=2x+80$

Now let us solve for x.

$9x-2x=80$

$7x=80$

$x=\frac{80}{7}$

Now let us substitute $x=\frac{80}{7}$ in 7x (amount of money that Egil gets).

$\text{ Amount of money that Egil will get}=7\cdot \frac{80}{7}$

Upon cancelling out 7 from numerator and denominator we will get,

$\text{ Amount of money that Egil will get}=80$

Therefore, Egil will get $80.

6 0

3 years ago

2 + 10n + 9 + 6n <br><br><br> Explain please

marshall27 [118]

Answer:

11 + 16n

Step-by-step explanation:

Collect the like terms

2 + 9 = 11
10n + 6n = 16n

11 + 16n is the final answer, and cannot be simplified further

5 0

2 years ago

Read 2 more answers

3^3 . x^2- 25 divided by 5 when x= 0.6

Alenkasestr [34]

Hey there!

3^3 * x^2 - 25 / 5

= 3^3 * 0.6^2 - 25 / 5

= 3 * 3 * 3 * 0.6 * 0.6 - 25 / 5

= 9 * 3 * 0.6 * 0.6 - 25 / 5

= 27 * 0.36 - 25 / 5

= 9.72 - 25 / 5

= 9.72 - 5

= 4.72

Therefore, your answer is: 4.72

Good luck on your assignment & enjoy your day!

~Amphitrite1040:)

7 0

2 years ago

Read 2 more answers

wat iz 9999999999999999999999999999999999999999999999999999999+99999999999999999999999999999999999999999999999999999999999999999

choli [55]

Ahbfiubauehfiouabcbaiu

5 0

2 years ago