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il63 [147K]
2 years ago
11

HELP PLEASE! :)

Mathematics
2 answers:
Serjik [45]2 years ago
6 0

Answer:

6.5 minutes

Step-by-step explanation:

Given :

⇒ <u>10 seconds</u> to remove <u>3%</u> of the <u>total gas contained</u>

============================================================

Solving :

⇒ Time taken to remove 99% of the gas = 99%/3% × 10 seconds

⇒ Time taken = 33 × 10 = 330 seconds

⇒ Time taken = 6 minutes 30 seconds

⇒ Time taken = 6.5 minutes

omeli [17]2 years ago
6 0

Step-by-step explanation:

hope you can understand

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Sara bought a pair of pants that were on sale for 30 percent off of the original price. If the original price of the pants was $
Ne4ueva [31]

Answer:

The new cost is $20.30

Step-by-step explanation:

In order to find that, start by taking the original price and multiplying it by what percentage you have to pay. Since it is 30% off, you have to pay 70%

$29*70% = $20.30

8 0
3 years ago
Mrs. Terrace cut a small birthday cake into 6 equal pieces for 6 children. One child was not hungry, so she gave the birthday bo
ELEN [110]

Missing part of question:

Draw a tape diagram to show how much cake each of the five children received.

Answer:

See attachment

Step-by-step explanation:

Given

Equal\ Pieces = 6

Children = 5

Required

Tape diagram to represent the scenario

Because one child is not hungry, the number of children to share the cake becomes 6.

So, first we calculate the share of each child.

Share = \frac{Pieces}{Children}

Share = \frac{6}{5}

Share = 1.2

See attachment for tape diagram

The tape diagram implies that:

5 * 1.2 = 6

or

\frac{6}{1.2} = 5

or

\frac{6}{5} = 1.2

4 0
3 years ago
A manufacturing company produces engines for light aircraft . The graph shows the number of engine produced each year since the
photoshop1234 [79]

Answer:

y=13x+32

149 engines in 9th year

Step-by-step explanation:

I think your question is missed of key information, allow me to add in and hope it will fit the original one.  

Please have a look at the attached photo.  

My answer:

From a look at the photo and the data plot can be represented by the function, so we can pick 2 points in our given graph

  • (x1, y1) = (2,60)
  • (x2, y2) = (5,99)

The standard form of a linear equation is:

y = mx + b where:

  • m is the slope
  • b is the y-intercept

We know the slope of the function can be found as following:

m = \frac{y2 - y1}{x2 - x1}  so in this situation we have:

<=> m=\frac{99-60}{5-2}=\frac{39}{3}=13

=> y = 13x + b (1)

Because the line goes through point  (2,60) so we substitute it into (1):

60 = 13*2 + b

<=> b = 60 - 26 = 34

=> y = 13x + 34

Now we will substitute x=9 to find the engines produced by company in 9th year as:

y=13(9)+32\\y=117+32=149

Hence, the company will produce 149 engines in 9th year

6 0
3 years ago
1/2 of 30 = 1/4 of ??
Leto [7]

Answer:60

Step-by-step explanation:

⅟₂ of 30=15

¼ of 60=15

<h3>Half of thirty is 15 so u need to know what ¼ of something makes 15 so all u have to do is times 15 by 4 and there got ur answer this will not go for every question tho</h3>
4 0
3 years ago
What would the football player's weight be on the moon where acceleration due to gravity is
Nonamiya [84]

Answer:

Step-by-step explanation:

Around 0

4 0
3 years ago
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