Julie's remote control helicopter rises 15 feet in 20 seconds. what is the rate of rise in feet per hour ?

Answer: $13.75

Step-by-step explanation:

A discount of 45% off = 100% - 45% = 55% of original price

Multiply the percentage by the regular price.

0.55 * 25 = 13.75

Let x be the number of pounds of candy that sells for $1.25 per lb that we need to mix, and let y be the number of pounds of candy that sells for $0.75 per lb. We can set up a system of equations to represent the problem:

x + y = 20 (we need a total of 20 pounds of candy in the mixture)

1.25x + 0.75y = 1.20(20) (the value of the mixture should be $1.20 per lb)

Simplifying the second equation, we get:

1.25x + 0.75y = 24

Multiplying the first equation by 0.75 and subtracting it from the second equation, we can eliminate y:

1.25x + 0.75y = 24

0.75x + 0.75y = 15

0.5x = 9

Dividing both sides by 0.5, we get:

x = 18

Therefore, we need 18 pounds of candy that sells for $1.25 per lb and 2 pounds of candy that sells for $0.75 per lb to make a 20-pound mixture that sells for $1.20 per lb.

Answer:

397

Step-by-step explanation:

Answer:

(-2,-8)

(-1,-5)

(0,-2)

(1,1)

(2,4)

Step-by-step explanation:

Start with y=0 for starters, make a graph, then plug in the equation 0=3x-2. Then you just multiple 0 by 3 and subtract to then bam, x=-2 and so on

[tex]~~~~~~ \textit{Simple Interest Earned} \\\\ I = Prt\qquad \begin{cases} I=\textit{interest earned}\\ P=\textit{original amount deposited}\dotfill & \$80\\ r=rate\to 10\%\to \frac{10}{100}\dotfill &0.10\\ t=years\dotfill &1 \end{cases} \\\\\\ I = (80)(0.10)(1) \implies I = 8\hspace{5em}\underset{ \textit{accumulated amount} }{\stackrel{ 80~~ + ~~8 }{\text{\LARGE 88}}}[/tex]

Answer: $88

Step-by-step explanation:

1. Plug in the given data into the formula.

p = 80

r = 0.1 (represents 10%)

t = 1 year

2. Solve for i based on the formula's values

i = (80)(0.1)(1) = 8

Interest earned is $8 but THIS IS NOT THE FINAL ANSWER!

3. Add i (interest) to p (starting amount)

Elena started with $80, so the interest of $8 is added for a final answer of $88 after one year.

Answer: 128

Step-by-step explanation:

12(6)+ 14x2x2

1.Do the parentheses-(These are parentheses) first

When the number it touching another number like this, you need to multiply them together

12x6=72

72+14x2x2

2. Then do exponents, but we don't have any so next to multiplying

2x2=4

72+14x4

14x4=56

3. Now we divide, but we don't have to divide anything so now we add

72+56=128

4. There is no subtraction in the problem, so now we are done and the total is 128

Have a good day =)

Answer:

We know that tan(theta) = opposite/hypotenuse = 24/43.Using inverse tangent, we can find the angle theta:theta = tan^(-1)(24/43)Using a calculator, we can find:theta ≈ 29.6 degrees (rounded to 1 decimal place)Therefore, the value of theta to 1 decimal place is approximately 29.6 degrees.

Step-by-step explanation:

The value of theta in a right angle triangle for which tan(theta) = 24/43 can be found using the inverse tangent function, also known as arctan. When evaluated, theta equals approximately 29.4 degrees.

In trigonometry, the tangent of an angle in a right angle triangle is the ratio of the side opposite to the angle to the side adjacent to the angle. Here, tan(theta) = 24/43, which means the ratio of the opposite side to the adjacent side is 24/43. To find the angle 'theta', you will need to use the inverse tangent function, commonly known as arctan or tan^-1.

In this case, theta = arctan(24/43). Use a calculator and ensure it's set to give the answer in degrees, not radians. The answer would be approximately 29.4 degrees to 1 decimal place.

https://brainly.com/question/31896723

#SPJ11

Answer:  21.4 pounds

Step-by-step explanation:

To calculate the amount of weight that is made up of body fat, you need to multiply the weight by the body fat percentage.

Weight of body fat = 162 pounds x 13.2% = 21.384 pounds

Then, round it to the nearest tenth which is,  21.4

Therefore, approximately 21.4 pounds of the individual's weight is made up of body fat.

Answer: 21.4 lb

Step-by-step explanation:

The question is asking how much weight consists of body fat.

We know that 13.2% of the total weight is body fat, and the total weight is 162 pounds.

Multiply to find out the body fat weight.

Percentage as a decimal over 1 * 162

0.132 * 162 = 21.384 lb

Round to nearest tenth: 21.4 lb

Answer:

2m+2+12y

Step-by-step explanation:

-4m-2+5y+6m+4+7y

2m+2+12y

Answer:

138

I hope i was able to help u,if i was ,please mark me brainliest pls

Answer:

138. Steps are shown above.

Answer:

662.91

Step-by-step explanation:

[tex]a = 8 \times 3 \times 24 + 4 \times (1 + \sqrt{2} ) \times {3}^{2} [/tex]

[tex]a = 662.91[/tex]

20q¹⁷w⁹ this is the answer hope this helps

Answer: Moving 4 units left

Step-by-step explanation: All you have to do is pick a point

keep the same y-coordinate. Subtract 4 from your x-coordinate.

Answer: 100 cm^2

Step-by-step explanation:

Answer:

The first yes, the second no.

Step-by-step explanation:

Proportional means they follow a constant proportion. In the first example, 1 hr is 4.5 ft, so the constant is 4.5, which means that everything in the top line multiplied by 4.5 should equal the bottom line. 2*4.5=9, 3*4.5=13.5, if you check it it all works out. But on the second problem, 2 hrs is 20 ft, which means that the constant should be 10, because 2/2 is 1 and 20/2 is 10, but 4*10 does not equal 30, it equals 40, so right off the bat we know it’s not proportional.

Answer: B

Step-by-step explanation:

The angles of a regular hexagon are all equal.

Answer: Your answer will be B) 120°

Step-by-step explanation: All the sides of a hexagon are the same so it's the same as the other degree.

Answer:

minutes   :     # of cards made

20                             50

40                             100

60                             150

80                             200

100                            250

120                            300

140                            350

160                            400

180                            450

200                           500

220                           550

240                           600

260                           650

280                           700

300                           750

320                           800

340                           850

360                           900

380                           950

400                           1000

And please let me know if this helps.

Answer:

21 Students

Step-by-step explanation:

Number of students earning the award = (15 / 100) x 140

Number of students earning the award = 0.15 x 140

Number of students earning the award = 21

Therefore, 21 of the 140 seventh-grade students earn the Presidential Physical Fitness Award.

Answer:

1. 0.9 is the answer

2. 1.28

Step-by-step explanation:

0.99÷11=99/100÷11/10=99/100x10/11=9/10=0.9

2.expand 5.12/4 by multiplying both numerator and the denominator by 100 512/400 reduce the fraction 512/400 to lowest terms by extracting and canceling out 10 32/25 for factor 2 5/5 2=1 7/25=1.28

Answer:

0.99÷11=0.09 5.12÷4=1.28

Answer:

See below.

Step-by-step explanation:

a) $81235 - $15405 = $65830

b)

1) The graph uses cubes to represent the amount of sales.

2) I wonder if the amount of sales is proportional to the length of the side of the cube or to the volume of the cube.

c)

Using a ruler, the Year 1 cube has side length 5 units.

Using the same ruler, the Year 5 cube has side length 18 units.

The volume of the Year 5 cube is 5832 units³. The volume of the Year 1 cube is 125 units³.

The ratio of the volumes of Year 5 cube to the Year 1 cube is

5832/125 = 47:1

The ratio of sales of Year 5 to Year 1 is

81235/15405 = 5:1

The sales of Year 5 are approximately 5 times the sales of Year 1, tbut the cube of Year 5 has approximately 47 times the volume of the cube of Year 1. The graph is misleading because the volumes of the cubes are not proportional to the amounts of sales.

d) 47 times in volume

Answer: 23.3 deg

Step-by-step explanation:

if theta = tan-1(0.43), then theta is about 23.3

Answer:

23.3 deg

Step-by-step explanation:

Answer:

its 38.13

Step-by-step explanation:

firstly let's find area of the half circle

we know that diameter of the circle is 6 so which gives us the radius which is 3 inch

3.14 otherwise known as pi

lets multiply pi by radius^2

3.14×3^2= 28.26 divide it by 2 because circle is cut in half 28.26/2= 14.13

now let's find area of the rectangle

6×4=24

now let's find the area of this figure

14.13+24 = 38.13

Answer:

Factors are like numbers that are multiplied together to get that number

Using 25:

The factors of 25 are 1,5,25

1*25 = 25 and 5*5 = 25, so they are the factors of 25

Multiples are the products of the specified number and another number

Using 25:

Some of the multiples of 25 are 25, 50, 75, 100 and so on

25*1 = 25, 25*2 = 50, 25*3 = 75, 25*4 = 100, so they are the multiples of 25

Hope this helps!

Answer:

A = 1792.44

Step-by-step explanation:

Area of Trapezoid formula is:

A = 1/2(b1 + b2)h

A = 1/2(92+61.2)23.4

A = 1/2(153.2)23.4

A = (76.6)*23.4

A = 1792.44