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3 years ago

8

The crab nebula is a cloud of gas and dust particles in space that is expanding at a rate of 930 miles per second. What is its r

ate of expansion in miles per hour?

1 answer:

Flauer [41]3 years ago

7 0

There are 3,600 seconds in one hour so if it expands at rate of 930 miles per second then 930 * 3600= 3,348,000 miles per hour

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Can u answer this mathematics question and show your work

Mnenie [13.5K]

See this solution/explanation (answer is '7 meters'):

1. According to the condition 'y' means the height, and 'x' - the length from the start of the lift hill.

2. The phrase 'height of 343 meters' means y=343.

3. From the another side y=x³. If to substitute 343 instead of 'y': 343=x³, - it is possible to find the value of 'x'.

x=<u>7 [m]</u> - how far from the start of the lift hill...

5 0

3 years ago

What value of x makes the equation true?<br><br> 16 + (18 + 10) = (x + 18) + 10<br><br> x = ?

choli [55]

Answer:

See below

Step-by-step explanation:

16 + (18 + 10) = (x + 18) + 10x

16 + 28 = (x + 18) + 10x Add like terms in the parentheses

44 = (x + 10x) + 18 Use the community property to regroup like

terms

44 = 11x + 18 Simply

<u>-18 = -18</u> Substract 18 from both side

26 = 11x Simply

<u>26</u> = <u>11x</u> Divide by 11

11 11

$2\frac{4}{11} = x$ Reduce

3 0

2 years ago

John sells apples for $5 per bunch and watermelons for $3 a piece. He made $100 today and sold 10 watermelons. How many bunches

harina [27]

Answer:

14

Step-by-step explanation:

3*10=30

5*14=70

30+70=100!!!

4 0

2 years ago

Read 2 more answers

What division problem equals 9/5

EleoNora [17]

Answer:

9÷5=9/5

Step-by-step explanation:

3 0

3 years ago

Ten friends scored the following marks in their end-of-year math exam:

S_A_V [24]

Answer:

Given that

Marks of ten friends

23%, 37%, 45%, 49%, 56%, 63%, 63%, 70%, 72% and 82%

Mean = 56

Variance = 284.6

Standards deviation = 16.9

6 0

3 years ago