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2 years ago

Round 27,141 to the nearest ten

Mathematics

1 answer:

Wittaler [7]2 years ago

4 0

27, 140 is the correct answer

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Compare and contrast the data represented in the double box plot below

Greeley [361]

Answer:

and wheres the box plot?

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2 years ago

Brianna incorrectly said proportion below is 1/12

anzhelika [568]

Answer:

Um... u have no picture so we can't answer.

Step-by-step explanation:

3 0

2 years ago

Jane wishes to bake an apple pie for dessert. The baking instructions say that she should bake the pie in an oven at a constant

Viktor [21]

Answer:

Therefore $k= \frac{ln2 }{18}$ , A=184

Step-by-step explanation:

Given function is

$T(t)=230 -e^{-kt}$

where T(t) is the temperature in °C and t is time in minute and A and k are constants.

She noticed that after 18 minutes the temperature of the pie is 138°C

Putting T(t) =138°C and t= 18 minutes

$138=230 -Ae^{-k\times 18}$

$\Rightarrow -Ae^{-18k}=138-230$

$\Rightarrow Ae^{-18k}=92$ .....(1)

Again after 36 minutes it is 184°C

Putting T(t) =184°C and t= 36 minutes

$184=230-Ae^{-k\times 36}$

$\Rightarrow Ae^{-36k}=230-184$

$\Rightarrow Ae^{-36k}=46$ .......(2)

Dividing (2) by (1)

$\frac{Ae^{-36k}}{Ae^{-18k}}=\frac{46}{92}$

$\Rightarrow e^{-18k}=\frac{46}{92}$

Taking ln both sides

$ln e^{-18k}=ln\frac{46}{92}$

$\Rightarrow -18k =ln (\frac12)$

$\Rightarrow -18k= ln1-ln2$

$\Rightarrow k= \frac{ln2 }{18}$

Putting the value k in equation (1)

$Ae^{-18\frac{ln2}{18}}=92$

$\Rightarrow A e^{ln2^{-1}}=92$

$\Rightarrow A.2^{-1}=92$

$\Rightarrow \frac{A}{2}=92$

$\Rightarrow A= 92 \times 2$

⇒A= 184.

Therefore $k= \frac{ln2 }{18}$ , A=184

7 0

2 years ago

A restaurant bought 48.5 pound of apples from a local orchard. The next month, the restaurant bought another 65.3 pounds of appl

Tema [17]

48.5
+65.3
+24.5

=139.3 pounds

6 0

2 years ago

5. The denominator of a fraction exceeds the numerator of a fraction by 25.

Nostrana [21]

9514 1404 393

Answer:

15/40

Step-by-step explanation:

The difference between denominator and numerator in 3/8 is 8-3 = 5. In order to get an equal-value fraction with that difference being 25, each of the numbers must be multiplied by 5:

3/8 = 15/40

The number is 15/40.

3 0

2 years ago