78-[5+3 of (25-20)]
can you please help me solve this?​

Answer:

Stefan originally spent $ 110 on the bike and helmet, with which he is making a profit of $ 33.

Step-by-step explanation:

Since Stefan sells Jin a bicycle for $ 125 and a helmet for $ 18, and the total cost for Jin is 130% of what Stefan spent originally to buy the bike and helmet, to determine how much did Stefan spend originally and how much money did he make by selling the bicycle and helmet to Jin, the following calculations must be performed:

130 = 125 + 18

100 = X

100 x (125 + 18) / 130 = X

100 x 143/130 = X

14,300 / 130 = X

110 = X

143 - 110 = 33

Therefore, Stefan originally spent $ 110 on the bike and helmet, with which he is making a profit of $ 33.

Unbiased, systematic random, valid.

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Explanation:

Let's solve 6x = 3y + 5 for y

6x = 3y + 5

6x-5 = 3y

3y = 6x-5

y = (6x-5)/3

y = (6x)/3 - (5/3)

y = 2x - (5/3)

This final equation is in the form y = mx+b with m = 2 as the slope and b = -5/3 as the y intercept.

With the equation y = 2x, aka y = 2x+0, the m and b values are m = 2 and b = 0 respectively.

We see that both equations have the same slope (m = 2), but different y intercepts. Therefore, the two lines are parallel. If both y intercepts were the same as well, then we'd be talking about the same identical line.

If the slopes multiplied to -1, then the lines are perpendicular. In any other case, the two lines are neither parallel nor perpendicular.

Answer:

For the company to break even, the number of units sold is 500 units

Step-by-step explanation:

To get this number of units, we simply substitute the value of 0 for p

we have this as;

0 =x^2 -2500

x^2 = 2500

x = √2500

x = 500 (we do not consider the other root of x = -500 since the number of quantities cannot be negative)

Step-by-step explanation:

I hope you understand what I wrote

Answer:

The table in the exercise can be completed with the next results:

Step-by-step explanation:

As in the exercise Janice is 7 years older than Tam, to obtain the result in the table, you must add 7 to each age in the column x, with this we can make the next formula:

Remember that x is Tam's age, and y is Janice's age, so, you must replace the x variable in each case to obtain the result to y:

When x is 2:

When x is 4:

When x is 6:

When x is 8:

At last, to obtain the graph you can use the formula made: y = x + 7, and you'll obtain a graph like the attached picture, where each time x obtain a unit, the y variable obtain a unit too maintaining the diference of 7.

Answer:

33

Step-by-step explanation:

Answer:

{x,y} = {-5,-2}

Step-by-step explanation:

Answer:

89^2π

Step-by-step explanation:

Using the formulas

A=4πR2

D=2r

Solving for A

A=πD2=π·89^2≈24884.55541

Answer:

>

Hope this helps!!

Answer: It’s 6 meters

Step-by-step explanation:

if we know the area and the length we need to divide the two to get the width.

78 divided by 13. = 6

Answer:

Graph 1 is not proportional

Graph 2 is proportional - y is 2 times x

Step-by-step explanation:

In graph 1, there is no x-y correlation

In graph 2, there is, when x=1, y=6

when x=2, y=12. Therefore, when x=3 y would equal 18.

Answer:

62.8

Step-by-step explanation:

3.14 times 2 times 10

I hope this helps!

9514 1404 393

Answer:

  (a)  Interest = Principal x Rate x Time

Step-by-step explanation:

The letters in the simple interest formula ...

  I = Prt

stand for ...

  Interest = Principal x Rate x Time

Answer:

the answer is 2.145

Step-by-step explanation:

EDGE 2021

it's b because the graph of two lines that intersect at the point one it's like

Answer:

i its 3 or 4

Step-by-step explanation:

Answer:

7%

Step-by-step explanation:

Because the ratio was 7 to 5 which means 7 people wanted to play kickball and 5 percent wanted to play dodgeball

[tex]\huge\mathcal\pink{Answer}[/tex]

radius r = 10 m

volume V = 4188.7902 m3

surface area A = 1256.63706 m2

circumference C = 62.8318531 m

In Terms of Pi π

volume V = 1333.33333 π m3

surface area A = 400 π m2

circumference C = 20 π m

Answer:

25 on A

24 on B

Step-by-step explanation:

So for team A, x can be the total amount.

[tex]\frac{1}{5} x=5[/tex]

x = 25

25 players on team A.

For team B, let y be the total amount.

[tex]\frac{1}{8}x =3[/tex]

x = 24

24 players on team B.

Answer:

wingspan

Step-by-step explanation:

there's 10 mm in every cm

Answer:

1/9

Step-by-step explanation:

Answer:

its 987556467724

Step-by-step explanation:

I took quiz and got it right thid my proof

Answer:

Step-by-step explanation:

Substitute values and solve for Tc:

Correct choice is B

Answer:

21.908

Step-by-step explanation:

Answer:

6

Step-by-step explanation:

(sqrt(9)+sqrt(9))

3+3

6

Answer:

6 is the answer.

Step-by-step explanation:

(√9 + √9) = ?

→ √9 + √9

→ 3 + 3 = 6

Answer:

my school

Step-by-step explanation:

block me from sieng the image

Answer:

answer: Hi = 15

Step-by-step explanation:

the larger shape is the same as the smaller shape just flipped over and bigger of course so to find this out you have to take 2 simular angles and find out what multiplied by the small angle will get the big angle so I see angles gh and ba are simular I try 4.5 ÷ 1.5 = 3 so 3 is how much the shape is being multiplied by so bc is simular to hi so I do 5 x 3 = 15 and theres are answer 15 is the length of hi hope this helps you!

Step-by-step explanation:

In a cylinder

We know that

[tex] \boxed { \sf \: volume = \pi {r}^{2} h} \\ \rm \rightharpoonup \: \frac{22}{7} \times {5}^{2} \times 12 \\ \rm \rightharpoonup \: \frac{22}{7} \times 25 \times 12 \\ \rm \rightharpoonup \: \frac{6600}{7} \\ \rm \rightharpoonup \: 942.8cm {}^{3} [/tex]

Answer:

approx. 943 cm^3

Step-by-step explanation:

π × 5^2 x 12 = approx. 943 cm^3

Step-by-step explanation:

2, 6, 18, 54, 162

ratio = 6/2 = 3

a1 = 2