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2 years ago

PLEASE HELP WILL MARK BRAINLIEST

Mathematics

2 answers:

ipn [44]2 years ago

6 0

Answer:

${ \rm{y = x + 4 - - - (a)}} \\ { \rm{y = 3x - 4 - - - (b)}}$

equate equation a and equation b:

${ \rm{(a) = (b)}} \\ { \rm{x + 4 = 3x - 4}} \\ \\ { \rm{3x - x = 4 + 4}} \\ \\ { \rm{2x = 8}} \\ \\ { \boxed{ \rm{x = 4}}}$

• find the value of y:

${ \rm{from \: (a) : }} \\ \\ { \rm{y = x + 4}} \\ \\ { \rm{y = 4 + 4}} \\ \\ { \boxed{ \rm{y = 8}}}$

n200080 [17]2 years ago

4 0

Answer: (4,8)

Step-by-step explanation:

(8) = (4) + 4

8 = 8

TRUE

(8) = 3(4) - 4

8 = 12 -4

8=8

TRUE

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Preeta’s book has 300 pages. Each day she reads 10 more pages than the day before. She finishes her book in 6 days. How many pag

Scilla [17]

Step-by-step explanation:

1. if the number of pages in the 1st day is 'x', then the 2d day - 'x+10', the 3d day - 'x+20', the 4th day - 'x+30', the 5th day - 'x+40' and the last day - 'x+50' pages;

2. if the sum of all the pages is 300, then it is possible to make up the equation:

x+x+10+x+20+x+30+x+40+x+50=300;

3. x=25, it means:

1st day - 25;

2d day - 35;

3d day - 45;

4th day - 55;

5th day - 65;

6th day - 75 pages.

3 0

2 years ago

Read and follow the directions below. 1. Imagine a deck of 52 cards, ranging from twos through the face cards to aces, all in fo

mel-nik [20]

Answer: A) 30 cards

Step-by-step explanation:

1. 52 cards

2. subtract red suit cards: 52 - 26 = 26

3. add back the hearts: 26 + 13 = 39

4. remove the 3 remaining jacks, 3 remaining queens, & 3 remaining kings: 39 - 9 = 30

There are 30 cards remaining

7 0

3 years ago

Select the vertical asymptote(s) of the function <img src="https://tex.z-dn.net/?f=f%28x%29%3D%5Cfrac%7B%28x%2B6%29%28x-1%29%7D%

Bess [88]

Answer:

As the described function, we want to find vertical asymtotes, we find the value of x so that the denominator is equal to 0.

Here, (x - 2)(x + 6) = 0

=> x = 2, x =-6

=> Option C is correct.

Hope this helps!

4 0

3 years ago

Read 2 more answers

Make 'm' the subject of the formula'k=3m-2

zaharov [31]

Answer:

$m = \frac{k + 2}{3}$

Step-by-step explanation:

$k = 3m - 2 \\ 3m = k + 2 \\ m = \frac{k + 2}{3}$

4 0

3 years ago

Read 2 more answers

Anty was riding his bike to school at a speed of 12 mph. When he was of the way there, he got a flat tire. His mother drove him

NemiM [27]

Complete question:

Anty was riding his bike to school at a speed of 12 mph. When he was half of the way there, he got a flat tire. His mother drove him the rest of the way at a speed of 48 mph. What was his average speed?

Answer:

His average speed is 19.2 mph

Step-by-step explanation:

Given;

speed of Anty to school half of the way, v₁ = 12 mph

speed of Anty when his mother drove him half of the way, v₂ = 48 mph

The average speed of Anty is calculated as;

$V_{average} = \frac{Total \ distance }{Total \ time }$

The value of the average speed is closer to 12 mph than 48 mph because Anty spent more time moving at 12 mph than at 48 mph.

Let the equal distance travel at each speed = 96 miles

Time taken at 12 mph = $\frac{96 \ mile}{12 \ m/h} = 8 \ hours$

Time taken at 12 mph = $\frac{96 \ mile}{48 \ m/h} = 2 \ hours$

Average speed = $\frac{Total \ distance}{Total \ time } = \frac{96 \ mile \ + \ 96 \ mile}{2\ hr \ + \ 8\ hr} = \frac{192 \ miles}{10 \ hrs} = 19.2 \ mph$

Also, you can assume any other equal distance traveled at each speed, the average speed will still be 19.2 mph.

Check: let the equal distance traveled at each speed = 480 miles

Time taken at 12 mph = 480/12 = 40 hours

Time taken at 48 mph = 480/ 48 = 10 hours

Average speed = (480 + 480) / (40 + 10)

= 19.2 mph

8 0

2 years ago