**Answer:**

5

**Step-by-step explanation:**

265/53= 5

**Answer:**

265÷53=5

**Step-by-step explanation:**

just get a calculator

(-8) X 2/3 i NEED the answer help me

-5.33333333333

I used a calulator can I get brainliest please

BI

Challenge 2

A: Can you find the

area of the circle?

r=x +1

B: Can you find the

circumference of

the circle?

**Answer:**

Area of the circle = pi * r^2 = pi * (x+1) ^ 2

Circumference of the circle = 2* pi * r = 2*pi*(x+1)

Solve for x for the following pls!

1) 7+3x+1=4x+5

2) 8+2x+18=x+19

3) 6+2x+13=x+26

would appreciate it sm

**Answer:**

** 1.x=3 **

** 2. x= -7 **

**3. x=7**

**Step-by-step explanation:**

Salena needs to purchase 9 skirts for a new job. her friend, Jamie goes with her each of the skirts costs $41. Salena says that she can find the total cost by multiplying 9 and 4 and adding that to product of 9 and 1. Jamie disagrees and says that she needs to find the product of 9 and 40 and add that to the product of 9 and 1. Who is correct and why?

**Answer:**

Jamie is correct. This is because 41 is a combination of 40 and 1. Salena thinks that the 4 is just a 4, however, the 4 is in the tens place, so the 41 without the 1 is 40. The answer to this 41 times 9 is 369. Not 45.

**Step-by-step explanation:**

Each skirt is $41

Salena needs 9

(9*40) + (9*1)

360 + 9

$369

diride 660cm in the ratio of 5:6

**Answer:**

*Thus, the measure 660 cm is divided into 300 + 360 in the ratio of 5:6*

**Step-by-step explanation:**

Equations

We are required to divide 660 cm in the ratio 5:6, or 5/6.

Let's call:

x = first part of 660

660 - x = second part of 660

The ratio between them is 5/6.

[tex]\displaystyle \frac{x}{660-x}=\frac{5}{6}[/tex]

The above equation will result in x as the smaller part of 660.

Multiply by (660-x)*6 to eliminate denominators:

[tex]\displaystyle (660-x)*6\cdot\frac{x}{660-x}=(660-x)*6\cdot\frac{5}{6}[/tex]

Operating:

[tex]6x=(660-x)*5[/tex]

[tex]6x=3300-5x[/tex]

Simplifying:

[tex]6x+5x=3300[/tex]

[tex]11x=3300[/tex]

Solving:

[tex]\displaystyle x=\frac{3300}{11}=300[/tex]

The other part is 660 - 300 = 360

**Thus, the measure 660 cm is divided into 300 + 360 in the ratio of 5:6**

Tell whether the sum is positive, negative, or zero without adding them.

-8 + 20

**Answer:**

The sum is positive.

**Step-by-step explanation:**

The 20 is a far greater value than -8, so no matter what, when you add them the sum will be positive. Though this would not be the same were the -8 greater than -20.

Hope this helps!

Cliff needs 6 meters of wood for a building project. He already has 3

meters of wood.

Approximately how many feet of wood does Cliff need? (One meter

is approximately 3.3 feet.)

1 foot

3 feet

6 feet

10 feet

letter B 3 feet

**Step-by-step explanation:**

he needs three more to get 6 meters of wood

10, because he needs 3 more meters and 3 meters = 9.9 feet

what is 10x plus 50 - 2 divided by 6 + 100 times 8 - -2.

**Answer: the answer is -947 hope this helped.**

**Step-by-step explanation:**

You are playing a video game. For each diamond you collect, you earn 110 points. You also earn 80 bonus points by completing the level in less than 2 minutes. You need to earn more than 1620 points to continue on to the next level. Write and solve an inequality that represents the numbers d of diamonds you must collect in less than 2 minutes to advance to the next level.

**Answer:**

110d + 80 > 1620

d > 14

**Step-by-step explanation:**

The** amount of points from collecting diamonds can be represented by 110d,** since you get 110 points for each diamond, d

**Add 80 to this** to represent the bonus points.

Use a greater than inequality, because you have to get **more than 1620 points.**

**Put this all together:**

110d + 80 > 1620

**Then, solve for d:**

110d + 80 > 1620

110d > 1540

**d > 14**

So, you have to collect **more than 14 diamonds** in less than 2 minutes in order to advance to the next level.

Select all the expressions that are rational numbers.

a. 3.14159…

b. –9.1234567123…

c. –9.293847210103938…

d. 227

e. –26

**Answer:**

d,e

**Step-by-step explanation:**

rational numbers are positive and negative whole numbers.

**Answer:**

d,e

**Step-by-step explanation:**

4 Rosie has 150 caramel

apples to sell. Each caramel apple is covered with one topping.

of the caramel apples are covered with peanuts.

are covered with chocolate chips.

• The rest are covered with sprinkles.

How many caramel apples are covered with sprinkles?

F

50

G 80

H 70

J 30

7.3B

**Answer:**

I'd say 50

**Step-by-step explanation:**

I just divided 150 by 3 since I only saw 3 toppings.

you just purchased new tennis shoes for basketball for $99 the cost for washing will be $2.00. you will wear them 110 times between basketball practice and games. what is the cost per wearing?

**Answer:**

**Step-by-step explanation:**

espera y termino y te ayudo vale que me falta poco vale

At 7:00 one Summer morning Harry and Hermione hopped into their speedy more motorboat and left Hogwarts dock. They arrived at Dumbledore Wharf 35 minutes later. During the busy summer months a car ferry departs from Dumbledore wharf every five minutes. Tourists crowd onto the ferry for the 55 minute ride to Hogswarts dock. If Harry and Hermione followed the route that the car ferries take, how many car ferries did they see on their trip?

9514 1404 393

**Answer:**

19

**Step-by-step explanation:**

If we assume that the car ferries start at or before 6:05, and each 5 minutes thereafter, and if we count the ferries at the dock on either end, the total number seen is the number of ferries encountered in ...

55 +35 = 90 . . . minutes

That is, it is the number already in transit when they leave, plus the number that start while they are traveling.

That's 90/5 +1* = **19 ferries**.

_____

The attached diagram can give an idea. Each up-sloping line represents a ferry in-transit. The left side is Dumbledore Wharf; the right side is Hogwarts dock. Each horizontal unit represents the distance traveled by a ferry in 5 minutes. Each vertical unit represents a 5-minute interval.

The down-sloping line represents the motorboat travel. The dots at either end of the latter line represent car ferries that are at the dock, just arriving or just-departing. Altogether, there are 17 places where the lines cross, in addition to the boats at the docks.

__

* the +1 is because the number of points defining intervals is 1 more than the number of intervals.

The length of a rectangle is 10 meters more than the width. If 3 meters is added to both the length and the width, the new area will be 299 square meters. Find the length and width of the original rectangle.

HELP HELP HELP HELP

**Answer:**

L = 20

W = 10

**Step-by-step explanation:**

L = (w + 10)

NL = (w + 13)

Divide 299 by 13:

299 ÷ 13 = 23

So, 23 x 13 = 299

L = 23

W = 13

Subtract 3 from both to get the original length and width

Find the Unit Rate.

216 diving students to 12 instructors

**Answer:** 216 diving students to 12 instructors = 18 students per instructor.

**Step-by-step explanation:**

Which is the best description for the graph?

**Answer:**

decreasing, then increasing. the parabola decreases as it approaches the vertex, then increases afterward

8.032×10^-4 in standard form

**Answer:**

0.0008032

**Step-by-step explanation:**

Hope this helps!

**Answer:**

80,320

**Step-by-step explanation:**

Which shows another way to write 9.54?

O 0.5 + 0.04

O 9+ 0.4 + 0.05

O (9 * 1) + (5 x 0.1) + (4 x 0.01)

O (9 x 0.1) + (5 x 0.01) + (4 x 0.001)

**Answer:**

It would be C

**Step-by-step explanation:**

CHECK PHOTO Intercepts of the graph BE SURE TO BE CORRECT PLEASE no work needed

X=(-1.2,0) and y= (0,-0.7)

**Answer:**

y= (0, .7)

x= (-1.2, 0)

**Step-by-step explanation:**

r u taking a test?

600 students are studying in a private

school, the average monthly fee of a

student is Rs. 1200. How much amount for

tax does the school pay to the government

as education service tax at the rate of 1% in

a year? *

**Answer:**

600 ×1200=720,000

720,000×12=8,640,000

8,640,000×1%=8,640,000÷100%=86,400

86,400 per year

10

-25 please answer

**Answer:**

(-15)

**Step-by-step explanation:**

10-25 = (-15)

Please follow me and mark as brainliest

An experiment consists of determining the speed of automobiles on a highway using a radar equipment. The random variable in this experiment is a:

**Answer:**

**the speed value that the radar equipment outputs.**

**Step-by-step explanation:**

A random variable in an experiment is also (and most times the case) called a dependent variable. In this scenario, the random variable would be **the speed value that the radar equipment outputs.** This is because this value depends on the actual velocity of the cars that pass by the equipment. The faster the car is moving when it passes the radar the higher value will be displayed on the equipment. Therefore, depending completely on the vehicles.

What is the equation in slope-intercept form of the line that passes through the points (−12, −4) and (4, 8)?

A. y = −43 − 20

A. , y = −43 − 20

B. y = 43 − 12

B. , y = 43 − 12

C. y = −0.75 − 13

C. , y = −0.75 − 13

D. y = 0.75x +5

D. , y = 0.75x +5

**Answer:**

Choice **D**. [tex]y = 0.75\, x + 5[/tex].

**Step-by-step explanation:**

The general equation for the **slope-intercept form** of a line in a cartesian plane is [tex]y = m\, x + b[/tex], where:

Start by finding the value of [tex]m[/tex]. The slope of a line is equal to its rise-over-run. For the two points in this question:

The "rise" is the [tex]y[/tex]-coordinate of the first point minus that of the second: [tex]\text{rise} = (-4) - 8 = -12[/tex].The "run" is the [tex]x[/tex]-coordinate of the first point minus that of the second. The order of these two points should stay the same: [tex]\text{run} = (-12) - 4 = -16[/tex].Calculate the slope of this line:

[tex]\displaystyle m = \text{slope} = \frac{\text{rise}}{\text{run}} = \frac{-12}{-16} = 0.75[/tex].

The equation of the line becomes:

[tex]y = \underbrace{0.75}_{m}\, x + b[/tex].

Substitute the coordinates of either of the two points to find [tex]b[/tex]. For example, for the first point [tex](12, -4)[/tex], substitute in the following:

[tex]x = -12[/tex], and[tex]y = -4[/tex].The equation becomes:

[tex]-4 = 0.75 \times (-12) + b[/tex].

Solve for the value of [tex]b[/tex]:

[tex]b = 5[/tex].

Hence, the slope-intercept form of this line shall be:

[tex]y = 0.75\, x + 5[/tex].

An airplane is flying overhead at a constant elevation of 4090 ft. A person is viewing the plane from a position 3010 ft from the base of a radio tower. The airplane is flying horizontally away from the person. If the plane is flying at the rate of 700 ft/s, at what rate is the distance between the person and the plane increasing when the plane passes over the radio tower

Answer:

415 ft/s

Step-by-step explanation:

I've attached a diagram showing the triangle formed between the plane, the person and the radio tower.

From the attached diagram, x represents the position between the person and the position on the ground directly below the airplane while s represents the distance between the person and the plane.

The constant elevation remains 4090 ft while the value of x and s varies with time.

Thus, x varies with respect to time as dx/dt while s varies with respect to time as ds/dt.

Now, we are told that the plane is flying at the rate of 700 ft/s. This means that; dx/dt = 700 ft/s

Now we want to find the rate at which the distance between the person and the plane is increasing when the plane passes over the radio tower.

This means that we want to find ds/dt when x = 3010 ft

From pythagoras theorem if x = 3010 ft and the Elevation remains 4090 ft, we can find s as;

s = √(4090² + 3010²)

s = √25788200

s ≈ 5078.21 ft

Since we want to find ds/dt at x = 3010 ft, from the diagram, we can say from pythagoras theorem that;

x² + 4090² = s²

Differentiating x and s with respect to t, we have;

2x(dx/dt) = 2s(ds/dt)

2 will cancel out to give;

x(dx/dt) = s(ds/dt)

ds/dt = (x/s)(dx/dt)

Plugging in 700 for dx/dt, 3010 for x and 5078.21 for s, we have;

ds/dt = (3010/5078.21) × 700

ds/dt ≈ 415 ft/s

Compare: -7 -4

PLEASE HELP ME!

-11? What do u mean compare

mental math again 60x40x2

**Answer:**

the answer is 4800

**Answer:**

What is mental math?

Mental math is definitely what it sounds like—doing math in your head. But it’s also more nuanced than that. Being good at mental math tricks doesn’t mean that you’re able to solve 8974387 x 396 in your head instantly; while cool, that wouldn’t be very practical for daily life. So what does mental math mean?

It really just means being able to calculate in your head. It doesn’t mean you can solve every type of problem every time, nor is it a skill that you either “have” or “don’t have”; it’s a skill that you can learn, practice, and improve so that you can solve a bigger range of problems. And mental math certainly doesn’t have to be entirely in your head, either. Jotting down the numbers you need to remember to give you a head start (no pun intended), or writing down your solutions at each “step,” does not negate the “mental”-ness of the math.

Is mental math useful?

Ask this question again next time you’re trying to figure out a tip or doing any kind of construction or home improvement project! And, in addition to handy practical uses, knowing how to do mental math can also just keep your brain sharp and curb your reliance on calculators. Because, come on, doesn’t it feel good to reach for a calculator only to realize, “Wait, I don’t need it!” and figure out the answer in your head? (Spoiler: It does!) Not to mention knowing how to mentally solve small, simple math problems can save you some steps and help you out if you do need to solve a more complicated, difficult problem. There are always going to be some math problems that it would be silly to not solve with a calculator, but, yes, mental math is useful. And if you’re wondering if math itself is useful, math lessons you’ll actually use in real life.

**Step-by-step explanation:**

Plz help Plz help

Ella played a math game and had the five cards shown.

7 0 -4 -10

Her score was the sum of the numbers on these five cards. What was Ella’s score?

3

⊝

23

−5

⊝

Not here

**Answer:**

-7 (Not here)

**Step-by-step explanation:**

1. A negative plus a negative equals a negative/ a negative minus a positive equals a negative so: -10 -4 = -14

2. -14 + 7 = -7 so your answer is -7 and it's not an answer choice so you would select "Not here"

Deandre pays $15.20 for a pack of 8 towels.

Find the unit price in dollars per towel.

If necessary, round your answer to the nearest cent.

Please help

Answer: Each towel costs $1.90

Step-by-step explanation:

$15.20 divided by 8 = $1.90

More on Linear Equations & Linear Systems: Question 1

How many solutions does the system of equations below

have?

y - 2x + 2

y-r-1

Select one:

none

infinitely many

O o o o

one

two

Answer:

21

Step-by-step explanation:

please help!!!!!!!!!!!!!!

**Answer:**

A

**Step-by-step explanation:**

By solving (x+6)(x-9), we get x^2 - 3x - 54. By looking at our y-intercept, we can see that only option A has the correct intercept.

**Answer:**

A

**Step-by-step explanation:**

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Deandre pays $15.20 for a pack of 8 towels.Find the unit price in dollars per towel.If necessary, round your answer to the nearest cent.Please help
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