please help meee i dont know what i have to do

Step-by-step explanation:

x/y×26=65

26x/y/26=65/26

x/y=65÷26

x/y=2.5

Answer:

7.83 km/h

Step-by-step explanation:

Let v = average speed for first part, v' = average speed for second part.

Given that v' = v - 15, the distance covered by the first part d = 350 km. The distance covered in the second part d' = 470 km - 350 km = 120 km.

Since both parts are covered in the same time,

d = vt and d' = v't = (v - 15)t

So, 350 = vt  (1) and 120 = vt - 15t (2)

substituting vt = 350 into (2), we have

120 = 350 - 15t

collecting like terms, we have

15t = 350 - 120

simplifying, we have

15t = 230

dividing through by 15, we have

t = 230/15

t =  15.33 h

Since d' = v't, then

v' = d'/t

= 120 km/15.33 h

= 7.83 km/h

So, the average speed for the second part of the journey is 7.83 km/h

I think there is a little error in your question. I guess You mean 60 vaccinations instead of 606060. I solved using 60 vaccinations.

Answer:Dr. Potter gave 32 polio vaccines and 28 measles vaccinations that year.

Step-by-step explanation:

STEP 1

Let number of polio vaccines be x

and number of measles vaccine be y

such that

total does of 60 vaccinations be expressed as

x+y = 60---- equation 1

And number of doses for both  vaccine to total 184 doses taken be expressed as

4x + 2y= 184 ---- equation 2

Step 2--- solving

x+y = 60---- equation 1

4x + 2y= 184 ---- equation 2

Making x the subject of formula in equation 1 and substituting it in equation 2

x= 60-y

4(60-y) +2y- 184

240-4y+2y=184

240-184= 4y-3y

56= 2y

y= 58/2 = 28

To get x , put the value of y=28 in equation 1 and solve

x+y=60

x=60-28

x=32

Therefore Dr. Potter gave 32 polio vaccines and 28 measles vaccinations that year.

Answer: $1,266.697.

Step-by-step explanation:

given data:

loan amount =  $7500

duration = 6 months

interest rate = 2.5%

Solution:

[tex]A = P \frac{i(1+i)^{n} }{(1+i)^{n} -1}[/tex]

i = [tex]\frac{2.5}{100} \\= 0.025\\\frac{0.025}{6} \\= 0.004167[/tex]

=

= [tex]7500(\frac{0.00427}{0.0253} )[/tex]

= [tex]7500(0.169)[/tex]

= $1,266.697

Answer: y= 2/3x+4

Step-by-step explanation:

Answer:

[tex]D. Real,\ Irrational[/tex]

Step-by-step explanation:

[tex]7\pi \\As\ we\ know\ that\ 7\pi \ is\ can\ be\ factorized\ into\ 7*\pi .\\As\ we\ know\ that\ \pi \ is\ a\ transcendental,\ and\ is\ non-terminating\ non-recurring,\ it\ is\ an\ irrational\ number.\\7\ is\ a\ rational\ number\ as\ it\ is\ terminating\ and\ can\ be\ represented\\ as\ \frac{7}{1} .i.e\ in\ a\ ratio.\\Now,\\As\ The\ product\ of\ a\ rational\ number\ and\ an\ irrational\ number\ is\ irrational.\\The\ product\ of\ 7\ and\ \pi \ which\ is\ 7\pi \ is\ also\ irrational.\\Hence,\\[/tex][tex]7\pi\ is\ irrational.\\As\ we\ know\ that\ all\ rationals\ and\ irrationals\ fall\ under\ the\ category\\ of\ Real\ numbers. All\ irrationals\ are\ real\ numbers\ too.\\Hence,\\7\pi \ which\ is\ an\ irrational [As\ Proven]\ is\ also\ a\ real\ number.\\Hence,\\7\pi \ is\ real\ and\ irrational.[/tex]

Answer:

-3

Step-by-step explanation:

x is negative, we need x to be negative as well in order to get to 0. Therefore, x has to be -3.

Answer: 1/2x+2

Step-by-step explanation:

I just simplified

Answer:

5.5 cm/minute

Step-by-step explanation:

Given that,

The yellow turtle country covered 33 cm in six minutes.

To find unit rate, divide distance covered by the time.

Here, distance = 33 cm

Time, t = 6 minutes

[tex]R=\dfrac{33\ \text{cm}}{6\ \text{minutes}}\\\\=5.5\ \text{cm/minutes}[/tex]

Hence, the unit rate is 5.5 cm/minute. It means, Courtney covered 5.5 cm in one minute.

Answer:

C) 119.7°

Step-by-step explanation:

got it right on edge :)

- First: Calculate how many miles the family is driving in ONE hour.

There are two equations you can form to solve this.

300 / 6 = mph (miles per hour)

250 / 5 = mph (miles per hour)

300 / 6 = 50

250 / 5 = 50

They are driving 50mph. Now, you need to find out how many miles they drive in three hours.

50 * 3 = 150

Evan's family drove 150 miles on the third day.

Answer:

150 miles

Step-by-step explanation:

The first day, they drove 300 miles in 6 hours so divide 6 by 300. 300 divided by 6 equals fifty. On the third day, they drove half the amount of time, so it would be half the amount of miles because they drove the same speed throughout the trip.

300/2 so the answer to the question is 150 miles.

Answer:

456 students

Step-by-step explanation:

In order to find 95% of the 480 students, you can set up the equation below:

[tex]\frac{students}{total} = \frac{percent}{100percent}[/tex]

[tex]\frac{x}{480students} =\frac{95percent}{100 percent}[/tex]

x * 100 = 480 * 95

x = 45600 / 100 = 456

95% of 480 students is 456 students.

Answer:

20 questions were on the test

Step-by-step explanation:

Answer:

slope = 4

y-intercept = 8

Step-by-step explanation:

First convert the equation into the form

y = mx + c

where m is the slope, and c is the y intercept

16x - 4y = -32

16x + 32 = 4y

4y = 16x + 32

y = 4x + 8

m = 4

c = 8

Answer:

Slope = 4

Step-by-step explanation:

16x - 4y = -32

-16x .        -16x

-4y = -32 - 16x

/-4 .      /-4

y = 8 + 4x

Responder:

$ 2.5 y $ 3

Explicación paso a paso:

Paso uno:

datos dados

Sea xey el costo por libra de chispas de chocolate y nueces, respectivamente

por lo tanto

2x + 5y = 20 ------ 1

y

8x + 3y = 29 ------ 2

resolviendo 1 y 2 simultáneamente tenemos

2x + 5y = 20 (multiplicar la ecuación por 4)

8x + 20y = 80 ------------- 3

restar eqn 2 de 3

8x + 20y = 80 ------------- 3

8x + 3y = 29 ----------------- 2

0 + 17 años = 51

divide ambos lados por 17

y = 51/17

y = 3

El costo de las nueces por libra = $ 3

poner y = 3 en 8x + 3y = 29 ------ 2

8x + 3 (3) = 29 ------ 2

8x + 9 = 29

8x = 29-9

8x = 20

divide ambos lados entre 8

x = 20/8

x = 2,5

El costo del chocolate por libra = $ 2.5

Answer:

Step-by-step explanation:

y = [tex]\frac{1}{35} x[/tex]

for y = 1

x = 35

for y = 2

x = 70

and so on

substituting the values in y = [tex]\frac{1}{35} x[/tex] will also give same result!

Answer:

B. y = 35x

Step-by-step explanation:

If you multiply 35(x), by the number of gallons used, you will get the values of x as your result.

35 × 1 = 35

35 × 2 = 70

35 × 3 = 105

35 × 4 = 140

35 × 5 = 175

Answer:

[tex]y = 5 ( x - 3 ) ^2 -2[/tex]

OR

[tex]y+2= 5 ( x - 3 ) ^2[/tex]

Step-by-step explanation:

Vertex form of a parabola is given as:

[tex]y = a ( x - h ) ^2 + k[/tex]

Where ([tex]h,k[/tex]) is the vertex and [tex](x,y)[/tex] are the points on the parabola.

We are given that, the vertex is (3, -2) and another point on parabola is given as (2, 3).

[tex]h = 3,k = -2[/tex]

First of all, putting the vertex in the vertex equation as given above:

[tex]y = a ( x - 3 ) ^2 + (-2)[/tex]

Now, putting the values of [tex]x, y[/tex] as 2, 3 and let us find the unknown variable [tex]a[/tex]:

[tex]3 = a ( 2 - 3 ) ^2 + (-2)\\\Rightarrow 3 = a -2\\\Rightarrow a = 5[/tex]

Therefore, the equation in vertex form can be written as:

[tex]y = 5 ( x - 3 ) ^2 -2[/tex]

OR

[tex]y+2= 5 ( x - 3 ) ^2[/tex]

Answer:

B

Step-by-step explanation:

Using the rule of exponents

[tex]a^{m}[/tex] × [tex]a^{n}[/tex] = [tex]a^{(m+n)}[/tex]

[tex]a^{0}[/tex] = 1

Given

[tex]9^{c}[/tex] × [tex]9^{-c}[/tex]

= [tex]9^{(c-c)}[/tex]

= [tex]9^{0}[/tex]

= 1 → B

Answer:

a. See the attached picture for the graph and the excel file for how the graph is drawn.

b. The students at Maple High should choose Option A when attending more than 4 events; but they should choose Option B when attending less than 4 events

Step-by-step explanation:

Note: This question is not complete. The complete question is therefore provided before answering the question as follows:

At Maple High, the cost to attend special events depends on whether a student has purchased a $10 discount card.

Option A: The student buys a discount card. The cost is $5 per event.

Option B: The student does not buy a discount card. The cost is $7.50 per event.

a. Graph the relationship between total cost and number of events for each option.

b. Determine the condition under which the students at Maple High should chose each option.

The explanations to the answers is now given as follows:

Let x represent the number of events and y represents the total cost.

Options A and B can therefore be written as follows:

Option A: y = 5x + 10 ……………………………. (1)

Option B: y = 7.5x ……………………………….. (2)

a. Graph the relationship between total cost and number of events for each option.

Note: See the attached picture for the graph and the excel for how the graph is drawn.

In the excel, we assume figures for x from 1 to 10 and then calculate the associated y using equations (1) and (2) above

Also, the number of events (x) is on the horizontal axis while the total cost (y) is on the vertical axis.

The graph for Option A is the blue one while the graph for Option B is the red one.

b. Determine the condition under which the students at Maple High should chose each option.

From the graph in the picture and the attached excel file, the total costs (y) for each of Options A and B ar equal when the number of events (x) is equal to 4.

It can bee observed that when the number of events (x) is greater than 4, the total cost (y)  of Option A is less than the total cost (y) of Option B. Under this condition, Option A should be chosen.

On the other hand, when the number of events (x) is less than 4, the total cost (y)  of Option A is greater than the total cost (y) of Option B. Under this condition, Option B should be chosen.

Therefore, the students at Maple High should choose Option A when attending more than 4 events; but they choose Option B when attending less than 4 events.

Answer:

can you state what point I is?

Answer:

150% of 50 is 75, so the answer would be $75.

Step-by-step explanation:

Answer:

The other answer is wrong

Step-by-step explanation:

Because it said that on my test...

Answer:

Please check the explanation.

Step-by-step explanation:

Translating two units down means we need to subtract two units from the y-coordinate. i.e

(x, y) → (x, y-2)

We are given that the original point is (1, 2), and we have to find the image of (2, 4) obtained by translating 2 units down followed by a rotation of 180 counterclockwise.

                                                FOR (1, 2)

Given

First translation: Translating two units down

(x, y) → (x, y-2)

P(1, 2) → P'(1, 2-2) → P'(1, 0)

Second transformation: Rotation of 180 counterclockwise.

Rotation of 180 counterclockwise will make both 'x' and 'y' coordinates negative. i.e

(x, y) → (-x, -y)

Thus, after second transformation

P'(1, 0) → (-1, 0)

Thus, the image of (1, 2) obtained by translating 2 units down followed by a rotation of 180 counterclockwise will be: (-1, 0)

                                                    FOR (2, 4)

Given

First translation: Translating two units down

(x, y) → (x, y-2)

P(2, 4) → P'(2, 4-2) → P'(2, 2)

Second transformation: Rotation of 180 counterclockwise.

Rotation of 180 counterclockwise will make both 'x' and 'y' coordinates negative. i.e

(x, y) → (-x, -y)

Thus, after the second transformation

P'(2, 2) → (-2, -2)

Thus, the image of (2, 4) obtained by translating 2 units down followed by a rotation of 180 counterclockwise will be: (-2, -2)                                        

Answer:

Step-by-step explanation:

Equation in which to find the slope:

(slope) [tex]m = \frac{y_2 - y_1}{x_2 - x_1}[/tex]

Let:

[tex](x_1 , y_1) = (9 , -4)\\(x_2 , y_2) = (9 , 5)[/tex]

Plug in the corresponding numbers to the corresponding variables:

[tex]m = \frac{5 - (-4)}{9 - 9}[/tex]

Simplify. First solve the numerator and denominators, then divide:

[tex]m = \frac{5 - (-4)}{ 9 - 9} \\m = \frac{5 + 4}{9 - 9} \\m = \frac{9}{0}[/tex]

Because a fraction cannot be out of 0, your answer will be .

Answer:

Three times a variable added to a different variable divided by six is equal to two times the different variable minus the first variable.

Step-by-step explanation:

Answer:

8 = x

y = 29

Step-by-step explanation:

4x + 17 = y + 20 because vertical angles theorem.

y + 20 = 5x + 9  because interior angles theorem.

4x + 17 = 5x + 9  because same side interior angles theorem.

Subtract 9 from both sides and subtract 4x from both sides.

8 = x

Plug 8 in for x and solve.

5 times 8 is 40, plus 9 equals 49. Subtract 20 from both sides and you get 29.

5(8) + 9 = y + 20

49 = y + 20

29 = y

I hope this helps!

#teamtrees #WAP (Water And Plant)

Answer:

[tex]for \: answer \: see \: the \: pic \: along \\ \: with \: it. \\ \\ \\ hope \: it \: helps \: \\plz\: mark \: as \: brainliest \: answer..[/tex]