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pogonyaev
2 years ago
12

Find the equation of the line passes through the points (-1,5) and (3,13)

Mathematics
1 answer:
anygoal [31]2 years ago
5 0

Answer:

y = 2x + 7

Step-by-step explanation:

→ Find the gradient

\frac{13-5}{3--1} =2

→ Write into y = mx + c format

y = 2x + c

→ Substitute in x = -1 and y = 5

5 = -2 + c ∴ c = 7

→ Write into y = mx + c format

y = 2x + 7

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The glass fish tank does not have a cover. Find the total area of the glass panels used to make the tank.
pogonyaev
You will find the area of the 5 surfaces made of glass. There is a front, back, 2 sides, and the bottom. Each face is in the shape of a rectangle, so you will multiply the length by the width.
1. Front- 24 x 27 =648
Back-24 x 27 = 648
2. Side- 21 x 27 =567
Side - 21 x 27 = 567
3. Bottom - 21 x 24 = 504

Add all these together for your total amount of glass needed. The answer is 2934 square cm of glass.
6 0
4 years ago
Read 2 more answers
Divide £30 between 2 people in the ratio 1:2
yuradex [85]
1+2=3.
30/3=10
10x1=10
10x2=20
So the answer would be £10:£20
And to check if it’s right £10 + £20= £30
3 0
4 years ago
Read 2 more answers
Find n.<br> 12/18 = n/36<br><br> n =
Semenov [28]

Answer:

n =24

Step-by-step explanation:

pretend n is x its just a normal fraction lol

4 0
3 years ago
Read 2 more answers
Richie and bethany play basketball and practice shooting free throws after school. During one practice session, Richie attempted
mamaluj [8]

Answer:

<em>Bethany did not do better than Richie because her average score was less than his.</em>

Step-by-step explanation:

<u>Average Value</u>

The average or mean value of m successes out of n tries is given by:

\displaystyle \bar x=\frac{m}{n}

During a practice session playing basketball, Richie made m=12 free throws from n=15 attempts. His average score was:

\displaystyle \bar x=\frac{12}{15}=0.8

Bethany made 8 free throws for every 3 that she missed, this means she made 8 out of 11 attempts. Her average score was:

\displaystyle \bar x=\frac{8}{11}=0.72

Bethany did not do better than Richie because her average score was less than his.

5 0
3 years ago
(03.02 MC)The number of pages that Ana, Hillary, Roger, and Juan can read in a day is shown below:
IgorLugansk [536]

Answer:

Juan

Step-by-step explanation:

The number of pages that Ana, Hillary, Roger, and Juan can read in a day is shown below:

For Ana

Ana read 15% of her 46-page book.

= 15% × 46 pages

= 6.9 pages

For Hillary

Hillary read 11% of her 72-page book.

= 11% × 72 pages

= 7.92 pages

For Roger

Roger read 12% of his 68-page book.

= 12% × 68 pages

= 8.16 pages

For Juan

Juan read 14% of his 69-page book.

= 14% × 69 pages

= 9.66 pages

The person who can read greatest number of pages in a day also means the person who read the highest number of pages in a day.

From the calculation above, that person in JUAN because she can read 9.66 pages of her book in one day.

5 0
3 years ago
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