Please help ASAP this is very important
And please hurry

Answer: 70 mph

Step-by-step explanation:

224/x =224/x+10 +24/60

Solve equation

John's original speed was 70 mph.

Let's denote John's original speed as v (in mph).

The time taken for the first journey is 224 / v (hours).

His speed on the return trip is v + 10 mph.

The time taken for the return journey is 224 / (v + 10) (hours).

The time difference between the two journeys is 24 minutes, which is 24/60 = 0.4 hours.

Therefore, we set up the following equation:

224 / v - 224 / (v + 10) = 0.4

To solve this, we find a common denominator and solve for v:

224(v + 10) - 224v = 0.4v(v + 10)

2240 = 0.4[tex]v^2[/tex] + 4v

0.4[tex]v^2[/tex]+ 4v - 2240 = 0

Multiply by 10:

4[tex]v^2[/tex]+ 40v - 22400 = 0

Divide by 4:

[tex]v^2[/tex] + 10v - 5600 = 0

We solve this quadratic equation using the quadratic formula v = [-b ± √(b² - 4ac)] / 2a where a = 1, b = 10, and c = -5600:

v = [-10 ± √(10² - 4*1*(-5600))] / 2

v = [-10 ± √(100 + 22400)] / 2

v = [-10 ± √(22500)] / 2

v = [-10 ± 150] / 2

The possible solutions are:

v = (140 / 2) = 70 mph

v = (-160 / 2) = -80 mph (not feasible)

Thus, John's original speed was 70 mph.

Answer:

The answer is 48

Step-by-step explanation:

Answer:

48

Step-by-step explanation:

First, you plug 8 into the equation in place of h.

You can do this because h is equivalent to 8.

6(8)

Now we just multiply 6 and 8

6(8)=48

Answer:

-7 3=-4

-5 1=-4

-3 -1=-4

-7 and 3 make -4. -5 and 1 make -4. -3 and -1 make -4.

The three pairs with the same total are as follow:

An integer is the number zero, a positive natural number or a negative integer with a minus sign. The negative numbers are the additive inverses of the corresponding positive numbers.

An integer is a number with no decimal or fractional part and it includes negative and positive numbers, including zero. A few examples of integers are: -5, 0, 1, 5, 8, 97, and 3,043. A set of integers, which is represented as Z, includes:

Given:

Number on cards -7 -5 -3 3 1 -1

Now, we have to make the pair according it gives the same total

-7 + (3) = -4

-5 + 1 = -4

-3 -1 = -4

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Answer: 7238.23

Step-by-step explanation:

volume of a sphere is (4/3)(pie)(r^3)

so if the diameter is 24 than the radius is 12 so u would substitute that into the formula and you should get 7238.23

The correct answer is option D: 6,912π cubic units.

To find the volume (V) of a sphere, you use the formula:

[tex]\[ V = \frac{4}{3} \pi r^3 \][/tex]

where (r) is the radius of the sphere.

Given that the sphere has a diameter of 24 units, the radius (r) is half of the diameter, which is 24/2 = 12 units.

Now, substitute the value of the radius into the formula:

[tex]\begin{aligned}V & =\frac{4}{3} \pi(12)^3 \\V & =\frac{4}{3} \pi 1728 \\V & =\frac{6912}{3} \pi\end{aligned}[/tex]

Complete Question:

A sphere has a diameter of 24 units. What is its volume in cubic units?

A. 576π cubic units

B. 1,728π cubic units

C. 2,304π cubic units

D. 6,912π cubic units

Answer:

You've completed 11/12 of your project

Only 1/12 left to go!

Step-by-step explanation:

2/3 + 1/4 = 11/12

Answer:

Step-by-step explanation:

2/3+1/4=11/12

Answer:

a) 29%   b) 22%

Step-by-step explanation:

The quantities must be expressed in the same units.

a) compare 35 minutes to 2 hours.  2 hours is 2 x 60 = 120 minutes.

35/120 = .291667 = 29%

b) compare 650 grams to 3 kilograms.  3 kg = 3 x 1000 = 3000 g.

650/3000 = .21667 = 22%

Answer:

see explanation

Step-by-step explanation:

To express as a percentage, first express as a fraction and multiply by 100%

The quantities must be expressed in the same units.

(a)

2 hours = 2 × 60 = 120 minutes, thus

[tex]\frac{35}{120}[/tex] × 100% ≈ 29.2% ( to 1 dec. place )

(b)

3 Kg = 3 × 1000 = 3000 g, thus

[tex]\frac{650}{3000}[/tex] × 100% ≈ 21.7% ( to 1 dec. place )

Look at the attached picture⤴

Hope it will help u...

Answer:

9 meters

Step-by-step explanation:

Answer: the answer is 190

Step-by-step explanation: I multiplied 95 by two

Answer:

C) 190

Step-by-step explanation:

Answer:

I feel like its either c or d but i'm not sure? I'm sorry for the inconvenience. I really did try.

Step-by-step explanation:

Answer:

the anwser is d none of the above

Step-by-step explanation:

What does the yyy-intercept represent?The yyy-intercept tells us the value of the yyy-variable when the xxx-variable equals 000.Hint #22 / 3In this context, xxx represents the number of tire rotations, and yyy represents the distance past the tree. So the y-intercepty-interceptstart color #ca337c, y, start text, negative, i, n, t, e, r, c, e, p, t, end text, end color #ca337c at (0,−15)(0,−15)left parenthesis, 0, comma, minus, 15, right parenthesis says after 000 tire rotations, Coleman was 151515 meters away from the tree and the tree was in front of him.55101015152020252510102020303040405050-10-10Tire rotationsDistance past the tree (m)(0,−15)(0,−15)The first and fourth quadrants of a coordinate plane. The horizontal axis is from zero to thirty with a scale of five and is titled Tire rotations. The vertical axis is from negative twenty to sixty with a scale of five and is titled Distance past the tree in meters. The graph of the line is y equals two point two five x minus fifteen. The point zero, negative fifteen is plotted and labeled.Hint #33 / 3The answerThe yyy-intercept represents the distance Coleman was away the tree when he started traveling.Since that was not an option, the answer is none of the above.

Answer:

I believe you typed your final answer choice incorrectly, as it should read 960 which is the correct answer

Step-by-step explanation:

the volume is 1920

1920/2=960

Answer:

960 cubic inches

Step-by-step explanation:

I took the test

Answer:

Olivia can decorate 88 inches squared.

Step-by-step explanation:

First, 14*8=112in^2

Next,6*4=24in^2

Lastly,112-24=88in^2

So, the answer is 88 inches squared

Answer:

number d im (pretty sure)

Step-by-step explanation:

Answer:

4.65 x 10^-5

Step-by-step explanation:

.00465

[tex]4.65 x 10^{-5}[/tex]

Answer:

6.8 x 10^-3

Step-by-step explanation:

Answer:

6.8 x 10³

Step-by-step explanation:

Answer:

The awnser is Robi

Step-by-step explanation:

I just took this lesson

Answer: Robi

Step-by-step explanation:

Answer:

95°

Step-by-step explanation:

Since, quadrilateral DUCK is inscribed in circle O

sum of the opposite angles of the quadrilateral is 180°

m<K +m<U= 180°

m<K= 180°- 85°= 95°

Answer:

95 degrees

Step-by-step explanation:

Quadrilaterals that are inscribed in circles are often called "cylic". Cyclic quadrilaterals have many unique properties. One of these is that opposite angles add up to 180 degrees.

Here, DUCK is a cyclic quadrilateral. "Opposite angles" are < U and < K, as well as < D and < C. So, since < U and < K are opposite angles in this inscribed quadrilateral, they add up to 180 degrees:

< U + < K = 180

We already know that < U = 85, so:

85 + < K = 180

< K = 95

Thus, < K is 95 degrees.

Hope this helps!

Answer:

i dont know which line is it you tell me man

Step-by-step explanation:

yes so cool

Answer:

74

Step-by-step explanation:

a + b = 11

ab - ba = 27

10a + b - 10b - a = 27

10a - a + b - 10b = 27

9a - 9b = 27

9(a - b) = 27

a - b = 27 : 9

a - b = 3

a + b = 11

a - b = 3

_______ +

a + b + a - b = 11 + 3

2a = 14

a = 7

a + b = 11 => 7 + b = 11 => b = 11 - 7 => b = 4

ab = 74

Answer:

Look at the attached work for a step by step solution and answer.

Step-by-step explanation:

5 Aaron wants to draw rectangles that each have an area of 36 square inches.

The length and width of each rectangle are whole numbers of inches.

OK, we have Area=L×W where area is 36 and L and W are whole numbers, aka non-negative integers.

36=LW

a. A rectangle can have a width of 3 inches.

Sure, L=36/W = 36/3=12, a whole number.  True

b. A rectangle can have a length of 8 inches.

W=36/L=36/8=9/2, not a whole number.  False

C. A rectangle can have a length of 18 inches and a width  of 2 inches.

Sure 18×2=36, our area.  True

d. A rectangle can have a width of 6 inches and a perimeter

that is less than 36 inches.

L=36/6=6

It's a square, perimeter 6+6+6+6=24 which is of course less than 36

True

e. A rectangle can have a length of 9 inches, a width of  4 inches, and a perimeter equal to its area.

Perimeters can never really equal areas; they have different units.  Let's just assume they mean they have the same number.

Area is 9×4=36, as desired.  Perimeter is 9+4+9+4=26, not equal to its area.

False​

This answer explains the possible dimensions for rectangles with an area of 36 square inches. The possible widths include 3 and 6 inches depending on the corresponding length. However, a length of 8 inches or 18 inches with a width of 2 inches, and a rectangle with a length of 9 inches and a width of 4 inches are false scenarios.

The subject of these statements is about rectangles with an area of 36 square inches and their possible dimensions. For a rectangular area, you multiply the length by the width.

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Hi there! Hopefully this helps!

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

Answer: y=10(0.4)x.

Explanation: 0.4 is 40% in decimal form.

Answer:

516

Step-by-step explanation:

First

34% small and 40% large means that 100 - (34 + 40) = 26% medium

26% of 600 = 0.26 × 600 = 156

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

Second

[tex]\frac{3}{10}[/tex] are small and [tex]\frac{1}{10}[/tex] are large, which means [tex]\frac{6}{10}[/tex] are medium

[tex]\frac{6}{10}[/tex] × 400 = 0.6 × 400 = 240

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

Third

sum the parts of the ratio, 3 + 4 = 7

Divide 210 by 7 to find the value of one part of the ratio

210 ÷ 7 = 30 ← value of 1 part of ratio

Thus medium = 4 × 30 = 120

Total number of medium packets = 156 + 240 + 120 = 516

Answer:

the 4th term is 64

Step-by-step explanation:

Given

d(1) = 13

d(n) = d( n -1) +17

First

d(2) = d(2-1) + 17

= d(1) + 17

= 13 + 17

= 30

d(3) = d(3-1) +17

= d(2) + 17

= 30 +17

= 47

d(4) = d(4-1) + 17

= d(3) + 17

= 47 +17

=64

To find the 4th term in the sequence defined by d(n)=d(n-1)+17, we can use the formula recursively to compute the subsequent terms. Starting with d(1)=13, we can find d(4) by adding 17 repeatedly.

The sequence is defined by the formula d(n)=d(n-1)+17, with d(1)=13. To find the 4th term in the sequence, we can use the formula recursively. Starting with d(1)=13, we can find d(2) by adding 17 to d(1): d(2)= d(1) + 17 = 13 + 17 = 30. Continuing this pattern, we find d(3) = d(2) + 17 = 30 + 17 = 47. Finally, we find d(4) = d(3) + 17 = 47 + 17 = 64.

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Answer:

219.8

Step-by-step explanation:

just multiply 157 times 1.4 and there you go!!

Since Sammy's stride is 1.4 meters, we simplify this to 1 meter for Estimation purposes. The field is 157 strides long, hence the estimated length of the field using compatible numbers is 157 meters.

To estimate the length of the field using compatible numbers, you first need to understand what each stride of Sammy's represents in standard units of length.

Sammy's stride is 1.4 meters.

We can simplify this to 1 meter for the sake of estimation.

Therefore, each stride Sammy takes is estimated to be roughly 1 meter.

Sammy finds that the field is 157 strides long.

To estimate the field's length in meters using compatible numbers, we simply take the number of strides Sammy counted (157) and replace his stride length with our simplified stride length (1 meter).

So, the estimated length of the field is 157 meters.

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The probable question may be:

5. For science class, Sammy is using the length of his stride to measure the length of a field. He finds that the field is 157 strides long. His stride measures 1.4 meters long. Use compatible numbers to estimate the length of the field.

Answer:

Find key words

Step-by-step explanation:

The first part is to find your key words like each or more than one of that will normally be you variable. Then your numbers follow the variable. If its comparing 2 things more than likely you will need and equal sign.

Hope this helped!

Answer:

Say you are wanting to build a patio in your back yard but you want to know how much space you'll have let over. You need to find the area of your back yard and then see how big your patio is going to be. So you find the area of you patio and substrate it from the area of the back yard.

Step-by-step explanation:

Lemme know if you need more details

|7m + 4| = 1

It can equal either 1 or -1, so:

7m + 4 = 1

7m = -3

m = -3/7

7m + 4 = -1

7m = -5

m = -5/7

Answer:

  9.89 billion

Step-by-step explanation:

At that rate of growth, the population is multiplied by 1.023 each year. After 22 years, the population would be ...

  6·1.023^22 ≈ 9.89 . . . billion

Answer:

Let the equation for the population (P) growth be given by

P = P0ert, where P0 is the initial population in billioins at time t,

                           t is the number of years since 1987,

                           r is the rate of growth of population/year

In this case P0 = 5 billion and r = 0.02.  Putting these values into the equaation:

P = 5e0.02t

Year 1995 is 8 years after 1987, then the population would be

P = 5e0.02*8 = 5e0.16 ≈ 5.87 billion people

Step-by-step explanation:

Answer:

The length of AB is 7.45 units.

Step-by-step explanation:

You can find the length of AB using Cosine Rule, cosθ = adj./hypo. :

θ = 20°

adj. = 7 units

hypo. = AB

cos 20° = 7/AB

AB = 7/cos 20°

= 7.45 units (3s.f)

Answer:

7.45

Step-by-step explanation:

Answer:2.8 x 10^-6. hope this helps :)

Final answer:

The expression (7 x 10⁻¹²)(4 x 10⁵) in scientific notation is 2.8 x 10⁻⁷.

Explanation:

The expression in scientific notation for the product (7 x 10⁻¹²)(4 x 10⁵) is found by multiplying the coefficients (7 and 4) and then adding the exponents of 10 (as they have the same base). Multiplying the coefficients gives us 28, and adding the exponents of 10 (-12 + 5) gives us -7 as the new exponent.

The final result in scientific notation is 2.8 x 10⁻⁷. Note that 28 is adjusted to 2.8 to maintain the correct form for scientific notation, which is one non-zero digit to the left of the decimal point.