this is worth 20 points so please help me



A jewelry store marks its merchandise up by 80%. If the wholesale price of a bracelet is $55, what will the store charge for the retail price?

O A) $63

OB) $75

OC) $99

OD) $110​

Answer:

Step-by-step explanation:

7(3+4y)-15y=73

21 plus 28y-15y=73

21 plus 13y = 73

13y=51

y=4

Step-by-step explanation:

Step 1: Multiply the 7 into the bracket.(make sure that your signs are correct)

Step 2: Minus the 21 from the 73.( Because when you take a value over the equal sign the value's sign changes)

Step 3: Minus 15y from 28y.

Step 4: Divide 52 by 13( because when you take the 13 over it divides ,because on the other side lf the equal the 13 multiples with the y)

Answer:

Step-by-step explanation:

Elisa has 60 almonds and 70 pistachios and she wants to distribute them in bags so that they all have the same content and that there are no excess almonds and pistachios.

How many bags can you fill?

How many almonds and how many pistachios does she have to put in each bag?

=====================

Prime factors of the given numbers:

LCM(60, 70) = 2*5 = 10

The greatest number of the bags is 10

Each bag will contain:

Answer:

x=30/7

Step-by-step explanation:

you have to multiply both fractions by 5 to eliminate 5 from the first fraction(not the denominator of the second fraction) which makes the equation

x=30/7

Step-by-step explanation:

Isolate X first

[tex]\frac{x}{5} =\frac{6}{7}[/tex]

multiply both sides by 5 to get x on its own.

[tex]x =\frac{5*6}{7}[/tex]

simplify this fraction

[tex]x=\frac{30}{7}[/tex]

[tex]x = 4\frac{2}{7}[/tex]

There You go

Answer:

2.69

Step-by-step explanation:

Answer:

d

Step-by-step explanation:

all of the others are no solution or multiple find them by eliminating variabls

Answer:

b

Step-by-step explanation:

Answer:

r < 1

-

1. Move the constant to the right

9- 4r > 5

2. Calculate

-4r > 5 - 9

3. Divide both sides

-4r > -4

4. Solution

r < 1

Answer:

The first option. "If lines on a coordinate plane have opposite reciprocal slopes, then they are perpendicular."

Step-by-step explanation:

It is the only one that makes sense, tbh. But, it includes the proper "if-then" form like the question requests it have. It also incorporates all aspects of the original statement-

a.) lines on a coordinate plane

b.) perpendicular

c.) opposite reciprocal slopes.

You're welcome. :D

Answer:

Its A

Step-by-step explanation:

edge 2021

Answer:

Multiply the divisor and dividend by

✔ 100.

The new division problem becomes

✔ 4,860 ÷ 15.

The quotient of 48.6 ÷ 0.15 is

✔ 324 .

Estimating to check, you get

✔ 5,000 ÷ 15 = 333.33.

Step-by-step explanation:

i did edg.

Answer:

100, 4860 divided by 15, 324, 5,000 divided by 15 equals 333.33

Step-by-step explanation:

I took math test and got this right

Answer:B

Step-by-step explanation:

Answer:

N= 200-50t

Step-by-step explanation:

Answer:

There is no vertex for this function since this is a slope formula. A vertex only occurs when there is a maximum or minumum of a given function, for example the quadratic formula with an x^2.

Step-by-step explanation:

Answer:

1 4/7

Step-by-step explanation:

Answer:

5(2x-8)+15=-15

10x-40+15=-15

10x-25=-15

    +25   +25 (add 25 to both sides)

____________

10x=10

divide by 10 on both sides

x=1

Answer:

x=1

Step-by-step explanation:

First youd distribute the 5 to the 2x-8 so that way you can combine like terms and make the equation smaller

10x - 40 + 15 = -15

combine the -40 and 15

10x - 25 = -15

add 25 to both sides to get 10x by itself on the one side. you have to add 25 to the -15 because the two sides must stay balanced

10x = 10

divide by 10 to get x by itself. you must divide since x is being multiplied by 10

x=1

Answer: 1/2

Step-by-step explanation:

Answer:

55

Step-by-step explanation:

Answer:

1) $2.22

2) 22 burgers

3) -6, 3

Step-by-step explanation:

Question 1:

6 x 0.79 = 4.74

$6.96 - $4.74 = $2.22

Question 2:

5.5 / 0.25 = 22

Question 3:

Each time the number divides by negative 2

12 / -2 = -6

-6 / -2 = 3

Answer:

+5

Step-by-step explanation:

Answer:

y = -1/2 x + 1

Step-by-step explanation:

(-2, 2) and (4, -1)  are points of the linear function, that will be described as:

y = ax + b

setting x=-2, y=2:

2 = -2a + b, so b = 2 + 2a

setting x=4, y=-1:

-1 = 4a + b ⇒ -1 = 4a + 2 + 2a ⇒   -3 = 6a ⇒ a = -1/2, b = 1

y = -1/2 x + 1

Answer:

-√-3

Step-by-step explanation:

Answer:The

Step-by-step explanation [tex]-\sqrt{-3}[/tex]

Answer:

The answer is 49.9

Step-by-step explanation:

499/10==49.9

Hope this helps

$449.10

I've attached a photo with my work :)

Answer: the answer is C

Step-by-step explanation:

Answer:

2x + 20 >_ 85

Step-by-step explanation:

In this equation, the 85 represents how much he needs to make. The greater than or equal to symbol is basically stating that he needs to make an amount greater than or equal to 85. Our variable, x, will tell us how many tickets he needs to sell, and the 2 represents how much each ticket sells for. 2x is just saying that each ticket sells for 2 dollars. The 20 is how much he makes on a daily basis without the ticket sales. We have to include that in the 85. That's where our equation comes from :)

Answer:

Step-by-step explanation:

2.4

Answer:

2.4

Step-by-step explanation:

9.6 to 10 is .4

10 to 12 is 2

2+.4= 2.4

(That's how I do it mentally, sorry if it doesn't help with you)

Answer:

Answer: A'Reana's weekly allowance is $100

Step-by-step explanation:

Backward Solution

To solve some problems, we can work backward, using the inverse operations, to arrive at the solution.

The problem explains a sequence of expenses A'Reana does with her weekly allowance. In the end, she had $37.50.

That final balance came when she last spent $7.50 on a pizza. Thus, before that, she had $37.50+$7.50=$45

This balance is half of her previously remaining money. The other half was spent on a new shirt. Thus she had 2*$45=$90.

Those $90 were left after she gave $10 to her friend Taylor, thus, the initial money was $90+$10 = $100

Answer: A'Reana's weekly allowance is $100

Answer:

-5,12 because its to the right obviously you rflect it to the left because its y axis and boom -5,12

Step-by-step explanation:

Answer:

(-5,12)

Step-by-step explanation:

because when you flip it across the y axis you change the first number in the coordinates

Answer: D. a rotation followed by a translation

A rotation followed by a translation describes the given transformation. Option D is correct.

Given that,
In the figure shown, which composition of rigid motions will map one triangle onto the other is to be discussed

The triangle is a geometric shape that includes 3 sides and the sum of the interior angle should not be greater than 180°

here,
A figure has shown,
Two triangles is given which are similar,
For the required trasformation one triangle is required to rotate following a certain translation,

Thus, a rotation followed by a translation describes the given transformation. Option D is correct.

Learn more about triangles here:
https://brainly.com/question/2773823

#SPJ3

Answer:

40

Step-by-step explanation:

Answer:

the height of the tree to the nearest tenth of a meter is 13.8 meters

Step-by-step explanation:

The computation of the height of the tree is shown below:

Given that

Distance from the tree is 10 meters

And, the angle of elevation of the tree is 54 degrees

Now here we used the trigonometry

[tex]tan \theta = \frac{Height}{distance} \\\\tan 54^{\circ} = \frac{height}{10}[/tex]

So, the height is

= 10 × 1.38

= 13.8 meters

hence, the height of the tree to the nearest tenth of a meter is 13.8 meters

Answer:

M=-7 and n= the square root of 2

Step-by-step explanation:

integers are counting numbers (1,2,3,4, etc.) that can be negative. irrational numbers' decimals go on and on and on, like 4.1946183538 and dont repeat, im pretty sure

Answer:

C. y = 7.57 sin(–0.55x – 0.68) + 64.40

Step-by-step explanation:

Just got it right on edge

Answer:

ITS C STAN SKZ

Step-by-step explanation:

Answer:

144°K=-129.15°C