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3 years ago

Please help (HURRY HURRY)

Mathematics

1 answer:

Nataliya [291]3 years ago

4 0

Answer:

Green

Step-by-step explanation:

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Item 12 Seven out of every 8 students surveyed owns a bike. The difference between the number of students who own a bike and tho

AysviL [449]

so for this equation, I would do 7/8 = 72/x
1 72
- = -
8 x

Cross multiply to get 72 * 8 = 1x
solve for X 576 = x

8 0

3 years ago

Jacks mother gave him 50 chocolates to give to his friends for his birthday party. He gave 3 chocolates to each of his friends a

labwork [276]

Answer:

$3x+2=50$

There are 16 friends at Jack's party.

Step-by-step explanation:

Please consider the complete question.

Jack's mother gave him 50 chocolates to give to his friends at his birthday party. He gave 3 chocolates to each of his friends and still had 2 chocolates left. Write an equation to determine the number of friends (x) at Jack's party. Find the number of friends at Jack's party.

Since there are x friends at party, so chocolate given to x friends would be 3 times x $(3x)$ because Jack gave 3 chocolates to each friend.

As Jack has 2 chocolates left after giving to his friends, so total numbers of chocolates would be $3x+2$ .

Now we will equate total number of chocolates by 50 as:

$3x+2=50$

Therefore, the equation $3x+2=50$ can be used to find number of Jack's friends.

Let us solve for x.

$3x+2-2=50-2$

$3x=48$

$\frac{3x}{3}=\frac{48}{3}$

$x=16$

Therefore, there are 16 friends at Jack's party.

5 0

3 years ago

Find the zeros of the polynomial f(x) = 4(x+3)^2(x-1)^3

FromTheMoon [43]

Answer:

-3,1

Step-by-step explanation:

8 0

3 years ago

Please help me! <br> thanks

Stella [2.4K]

A) 45 mins

each big square represents 15 mins

b) 100km/h

speed= distance/time so it would be 50km/0.5h= 100km/h

Hope this helps! :)

4 0

3 years ago

Read 2 more answers

At what x value does the function given below have a hole?<br><br> f(x)=x+3/x2−9

S_A_V [24]

Answer:

hole at x=-3

Step-by-step explanation:

The hole is the discontinuity that exists after the fraction reduces. (Still doesn't exist for original of course)

The discontinuities for this expression is when the bottom is 0. x^2-9=0 when x=3 or x=-3 since squaring either and then subtracting 9 would lead to 0.

So anyways we have (x+3)/(x^2-9)

= (x+3)/((x-3)(x+3))

Now this equals 1/(x-3) with a hole at x=-3 since the x+3 factor was "cancelled" from the denominator.

4 0

3 years ago