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2 years ago

The product is 80. One factor is 4. What is the unknown number

Mathematics

2 answers:

bezimeni [28]2 years ago

8 0

The answer to the question is 20.

Snezhnost [94]2 years ago

8 0

20 is the unknown number because 80÷4=20 ,but also here is a way to figure it out you have to figure out what your basic fact is which is 8×4=2,then you add your 0,lastly your answer should be 20.

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How many leap years occur between the<br> years 1700 and 1875?

Zina [86]

Step-by-step explanation:

A leap year occurs every 4th year.

So, 1875 - 1700 = 175

Now let us divide 175 by 4

$175 \div 4 = 43.75 \\ here \: 43 \: represents \: the \: number \: of \: \\ leap \: years.$

So, 43 leap years occur between the years 1700 and 1875.

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2 years ago

the volume of a cone is 3πx3 cubic units and its height is x units. which expression represents the radius of the cone’s base, i

iVinArrow [24]

The volume given is 3Pi(x^3) and the radius is x. The formula for the volume of a cone is V= [1/3]Pi(r^2)*height => [1/3]Pi (r^2) x = 3Pi(x^3) => (r^2)x = 3*3(x^3) => (r^2)x = 9(x^3) => (r^2) = 9x^2 => r = sqrt[9x^2] = 3x. <span>Answer: r = 3x</span>

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2 years ago

Read 2 more answers

The music you hear when listening to a magnetic cassette tape is the result of the magnetic tape passing over magnetic heads, wh

Elden [556K]

Using the given formula T = LS

And given the time is 3 minutes (3 x 60 = 180 seconds)and the speed is 4-1/2 inches per second:

180 = L x 4-1/2

Solve for L by dividing both sides by 4-1/2:

L = 180 / 4-1/2

L = 40

The length should be 40 inches.

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2 years ago

Gill wears a device that counts the number of steps she takes every day. One day she did onefifteenth of her steps before breakf

Masteriza [31]

Answer:

6000 steps

Step-by-step explanation:

1/15 +1/10+1/2=2/30+3/30+15/30=20/30=2/3

2/3=12000 steps

1/3=6000 steps

3/3=18000 steps

Her total steps should be 18000 and she has done 12000 steps.

18000-12000=6000 steps

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2 years ago

The indicated function y1(x) is a solution of the associated homogeneous equation. Use the method of reduction of order to find

fenix001 [56]

Answer:

y2 = (6x + 7)/36 + (Dx + E)e^x

Step-by-step explanation:

The method of reduction of order is applicable for second-order differential equations.

For a known solution y1 of a 2nd order differential equation, this method assumes a second solution in the form Uy1 which satisfies the said differential equation. It then assumes a reduced order for U'' (w' = U'').

The differential equation becomes easy to solve, and all that is left are integration and substitutions.

Check attachments for the solution to this problem.

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2 years ago