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4 years ago

I spun a spinner number 1 to 20 what is the number divisible by 5

Mathematics

1 answer:

Sergeeva-Olga [200]4 years ago

6 0

Answer:

4/20 or 1/5

Step-by-step explanation:

4/20 or 1/5

If you spin a spinner 1 - 20, you have about 4 numbers that are divisible by 5 (5, 10, 15, and 20)

So this is 4 numbers out of 20

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A circular plate has a diameter of 16 inches. What is the area

krek1111 [17]

Answer:

<h3>The answer is 201 in²</h3>

Explanation:

Use the formula Area = pi * r²

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3 years ago

ſ x - 5y = -9( 4x + 4y = - 12Step 1 of 2: Determine if the point (-4,1) lies on both of the lines in the system of equations by

Phoenix [80]

Given:

$\begin{gathered} x-5y=-9\ldots\ldots(1) \\ 4x+4y=-12\ldots\text{.}\mathrm{}(2) \end{gathered}$

The given point is (-4,1)

Let's check the ordered pair (-4,1) in the first equation

$\begin{gathered} x-5y=-9 \\ (-4)-5(1)=-9 \\ -4-5=-9 \\ -9=-9 \end{gathered}$

Hence, (-4,1) is a solution of the first equation x-5y=-9.

Now, let's check (-4,1) in the second equation.

$\begin{gathered} 4x+4y=-12 \\ 4(-4)+4(1)=-12 \\ -16+4=-12 \\ -12=-12 \end{gathered}$

So, (-4,1) is a solution of the second equation 4x+4y=-12.

Hence, (-4,1) is a solution of both equation in the system, then it is a solution to the overall system.

3 0

1 year ago

How much must be added to each of the three numbers 1, 11, and 23 so that together they form a geometric progression?

Sliva [168]

Answer:

Step-by-step explanation:

Let x be unknown number which should be added to numbers 1, 11, 23 to get geometric progression. Then numbers 1 + x, 11 + x, 23 + x are first three terms of geometric progression.

Hence,

$b_1=1+x\\ \\b_2=11+x\\ \\b_3=23+x$

and

$b_2=b_1\cdot q\Rightarrow 11+x=(1+x)q\\ \\b_3=b_2\cdot q\Rightarrow 23+x=(11+x)q$

Express q:

$q=\dfrac{11+x}{1+x}=\dfrac{23+x}{11+x}$

Solve this equation. Cross multiply:

$(11+x)^2=(1+x)(23+x)\\ \\121+22x+x^2=23+x+23x+x^2\\ \\121+22x=23+24x\\ \\22x-24x=23-121\\ \\-2x=-98\\ \\2x=98\\ \\x=49$

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3 years ago

Solve using quadratic equation by factoring. x^2-9x=-14

Sonbull [250]

Answer:

2,7

Step-by-step explanation:

See image below:)

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3 years ago

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A triangle has a slant of 8yd, a height of 6.5yd, and a base of 4yd. What is its area?

luda_lava [24]

Answer:

B I thank

Step-by-step explanation:

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3 years ago

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