I don't understand why the answer is y=3x+1.
I got y =3x-6
please help me.​

Answer:

A is the answer, i.e at the cost, c of $250.

Step-by-step explanation:

0.08c = 0.05c + 7.5

0.08c - 0.05c = 7.5

0.03c = 7.5

c = 7.5/0.03 = 250

Answer:

2:7

Step-by-step explanation:

Answer:

5. 34% 6. $190.73

Step-by-step explanation:

trust man just trust

Answer:

5) 52

6) $190.73

Step-by-step explanation:

5)

Let the unknown number be x.

40 is 77% of x

40 = 0.77x

Divide both sides by 0.77

x = 52

Answer: the number is 52.

6)

We first calculate the amount of tax which is 6.875% of $178.46.

6.875% of $178.46 =

= 0.06875 * $178.46

= $12.27

The amount of tax is $12.27.

Now we add the amount of tax to the price before tax.

$178.46 + $12.27 = $190.73

Answer:

52.6 degrees

Step-by-step explanation:

tan^-1(72/55)

Angle of elevation is equals to 52°7'(approximately).

" Angle of elevation is the angle between the horizontal plane and  line of sight from the point of observation."

Formula used

In a right angled triangle,

tanθ = ( opposite side) / adjacent side)

According to the question,

As shown in diagram

Height of the building (AB) = 72m

Distance between base of the building and point of observation

(BC)= 55m

Angle of elevation = θ

Substitute the value in the formula we have,

 tanθ = AB / BC

          = 72 / 55

⇒ θ = tan⁻¹ (72 /55)

      = tan ⁻¹(1.3091)

      = 52° 7' (approximately)

Hence, angle of elevation is equals to 52°7'(approximately).

Learn more about angle of elevation here

https://brainly.com/question/21137209

#SPJ2

Answer:

13.

Step-by-step explanation:

Here's the equation you can write:

s-7/3=2

s-7=6

s=13

Answer:

A) 1/12 lb.

.. (1 2/3)/20 = 1/20 + (2/3)*(1/20)

.. = 1/20 + 1/30

.. = 3/60 + 2/60

.. = 5/60 = 1/12

Answer:

see the photo

Step-by-step explanation:

hope this helps

Answer: first groups hiking was 6mph, second groups was 4mph.

Step-by-step explanation:

Speed of first group = 6 mph

Speed of second group = 4 mph

If the normal distance between camp A and camp B is x, then the total distance this first group covers will be;

(x + 30) miles

Thus, their speed is;

v1 = (x + 30)/7 mph

Second group left by 1pm and got to camp B by 4pm. This is 3 hours.

Thus;

v2 = ((x + 30)/7) - 2 mph

x = ((x + 30)/7) - 2) × 3

Since;

distance = speed × time

Divide both sides by 3 to get;

x/3 = ((x + 30)/7) - 2)

Multiply through by 21 to get;

7x = 3(x + 30) - 42

7x = 3x + 90 - 42

7x - 3x = 48

4x = 48

x = 48/4

x = 12 miles

Thus, putting 12 for x in V1 equation gives;

v1 = (12 + 30)/7

v1 = 42/7

v1 = 6 mph

Similarly;

v2 = ((12 + 30)/7) - 2

v2 = (42/7) - 2

v2 = 6 - 2

v2 = 4 mph

Read more at; brainly.com/question/18642827

Answer:

25 pieces

Step-by-step explanation:

Given

[tex]Box_1 = 3\frac{1}{3}[/tex]

[tex]Box_2 = \frac{5}{6}[/tex]

[tex]Pieces = \frac{1}{6}[/tex] yard

Required

Determine the number of pieces

First, we need to determine the total yards of paper

[tex]Total = Box_1 + Box_2[/tex]

[tex]Total = 3\frac{1}{3} + \frac{5}{6}[/tex]

[tex]Total = \frac{10}{3} + \frac{5}{6}[/tex]

[tex]Total = \frac{20 + 5}{6}[/tex]

[tex]Total = \frac{25}{6}[/tex]

Divide by the size of the pieces to get the number of pieces

[tex]Number = Total/Pieces[/tex]

[tex]Number = \frac{25}{6} / \frac{1}{6}[/tex]

[tex]Number = \frac{25}{6} * \frac{6}{1}[/tex]

[tex]Number = \frac{25}{1} * \frac{1}{1}[/tex]

[tex]Number = 25[/tex]

Answer:

p=3

Step-by-step explanation:

5 +5 =10 p÷3(4+6) =py

=p3

Answer:

-3.15

Step-by-step explanation:First you must line them up

    - 8 . 4 6

+     5 . 3 1

-------------------

     Then you add

   - 8 . 4 6

+     5 . 3 1

-------------------

     3 . 1  5

You get three becuase -8 + 5 is 3.

Hope this helps :)

Answer:

A

Step-by-step explanation:

The answer is -3.9

Step-by-step explanation:

A is equivalent to B because if you flip or reflect A, then translate A it overlaps.  

1. Draw A's reflection below it: as if you flipped it.

2. Take the drawing and draw it mirroring B

3. Once you draw the second drawing if you moved, translated, it it would fit over the shape of the B polygon.

Answer:

107  4/5. This is because 2/5 is 0.4 and 15 times 7 is 105.

Answer:

Step-by-step explanation:

Vertical Angles are two angles whose sides form two pairs of opposite rays (straight lines).

So, looking at the chart in the picture and description ^:

1) Corresponding

2) Vertical

3) Alternate Exterior

4) Alternate Interior

5) Consecutive Interior

Can't clearly read the numbers for 6 and 7.

Answer:

Step-by-step explanation:

Answer:

-5x=-50

x=-10

Step-by-step explanation:

Answer:

4/100 is the fraction

Step-by-step explanation:

there are four blue blocks shaded out of the 100

Answer: drink A should be mix in all while B should be 3% only

Step-by-step explanation:

Answer:

2.22 liters of 6% drink should be mixed with 1.78 liters of 15% drink to get 4 liters of 10% drink.

Step-by-step explanation:

Hope this helped!

Answer:

Step-by-step explanation:

Given that the owls heart weighs 1.072 grams

and the Whale's heart weighs 400lbs

let us convert from pounds to grams to have a uniform unit

400lbs = 181,437grams

Now when two readings or quantities are two orders apart it means that they differ by a factor of 100

let us solve for the difference between the two hearts

181,437grams- 1.072 grams= 181 435.928 grams

the difference is more than two orders, hence the statement is not correct

Answer:

Tom's Car Rentals

Step-by-step explanation:

S: 0.10(200) + 41 = 61

T: 0.25(200) = 50

It is evident that Tom's Car Rentals holds the better deal.

This is what I said on my homework:)

Answer:

She is averaging 14 points a game, or close to it.

Answer:

x=25°, y=18°

Step-by-step explanation:

Solved! Here is the explanation. As we have supplementary angles, we have a total of 180° of angles. Angle BXD is a right angle, so 2x+40°=90°. 2x=50°, and then we have x=25°. Now, to figure out y, we have to look at angle BXA. In this case, 5y=90°. y=18°. So, x=25° and y=18°. Hope this explanation helps!

Answer:

False

Step-by-step explanation:

Let us evaluate the problem using the proper order of operation:

           4x − 2(5x − 1)

To solve this problem, we use the order of operation called PEMDAS;

P - Parentheses

E - Exponents

M - Multiplication

D - Division

A - Addition

S - Subtraction

Now, since operations inside the parentheses are of the utmost priority, let us solve this;

             4x − 2(5x − 1)

            = 4x - 10x +2

            = -6x + 2  or 2 - 6x

We see that the solution give is false.

Answer:

Part A: 15.55

Part B: 0.45

Step-by-step explanation:

Part A:

The giraffe is already 14.29 so when you add the length of its tongue (equation 14.29 + 1.26) then that would equal 15.55

Part B:

The giraffe is trying to eat some leaves that are 16 feet above the ground so you would subtract 16 - 15.55 to see how much farther it needs to reach, so the answer is 0.45.

(This is what I got, I apologize if I get this wrong. If I messed up on something, someone please correct me, thank you and have a nice day!)

Answer:

Part A:   It can reach 15.55 feet.

Part B:   Need to reach 0.45 feet farther to get to the leaves of a 16 feet tree.

Step-by-step explanation:

giraffe + tongue = reach

      14.29 + 1.26 = 15.55

tree height - giraffe reach = extra distance

16 - 15.55 = 0.45 feet

Answer:

20 centimeters

Step-by-step explanation:

i.e 5 x the number of characters in the stop sign.

Answer:

134.786 centimeters

Step-by-step explanation:

First you need to convert inches to cm by doing 59.4x2.54=150.876 then you subtract 16.09 from that. Your answer would be 134.786 centimeters