How do you make a dollar using only 30 coins

Answers

Answer 1

Answer: Well you could use 15 pennies, 7 dimes, and 3 nickels to make a dollar. It is only 30 coins and it makes a dollar.

Answer 2

Answer:

U would use

25 pennies , 2 quarters , 1 nickel and one dime

That is 30 coins used and makes a dollar ...

( give Jennifer credit if u like sense she figured it) :)

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Ratio of two volume cylinders (Geometry)If two similar cylinders have heights of 75cm and 25cm. What is the ratio of the volume of the larger cylinder to the volume of the smaller cylinder? Can someone please explain in detail. Thank you!

Here are two rectangles.6 cm
9 cm
8 cm
12 cm
Complete this sentence.
The two rectangles are similar and the scale factor is

Answers

Answer:

3/4

Step-by-step explanation:

Scale factor = 6/8 or 9/12 = 3/4

8;18;30;44;.... calculate the nth term of the sequence

Answers

The nth term of the sequence will be Tn = n^2 + 7n

How to calculate the nth term of a sequence

Given the sequence of numbers expressed as:

8;18;30;44;

Their common difference will form an A P as shown:

10, 12, 14...

Next term = preceding term + 2

Next term = 14 + 2

Next term = 16

The next term of the squence will be 44 + 16 = 60

The nth term of the sequence will be Tn = n^2 + 7n

Learn more on nth term here: brainly.com/question/7882626

Hello,

a(1)=8
a(2)=18=8+10=8+8+2=2*8+2=2*8+2*(2-1)
a(3)=30=18+12=2*8+2*(2-1)+8+2*(3-1)=3*8+2(1+2)
a(4)=44=a(3)+14=3*8+2(1+2)+8+2(4-1)=4*8+2(1+2+3)....

a(n)=n*8+2(1+2+3+...+(n-1))
= 8n+2*n*(n-1)/2)=8n+n(n-1)=n²+7n

$\boxed{a_(n)= n^2+7n}$

n=1=>1²+7*1=8
n=2=>2²+7*2=4+14=18
n=3=>3²+7*3=9+21=30
n=4=>4²+7*4=16+28=44
...

Factorize : a2 + b2 _ 2(ab - ac + bc ).

Answers

(a² + b² - 2ab) + 2ac - 2bc = (a - b)² + 2c(a-b) = (a-b)(a-b +2c)

your weight on the moon is about 1/6 of your weight on earth write and solve an equation to show how much a person weighs on earth if he weighs 16 pounds on the moon.how could you check that your answer is reasonable

Answers

16 * 6 = x.

If one sixth of your weight is 16, multiply it by 6.

16 x 6 = 96.

Final answer:

To find a person's weight on earth when you know their weight on the moon, multiply the moon weight by 6 (since weight on the moon is 1/6 of weight on earth). Therefore, if a person weighs 16 pounds on the moon, they would weigh 96 pounds on earth.

Explanation:

The question asks how much a person weighs on earth if he weighs 16 pounds on the moon. The fact that a person weighs about 1/6 on the moon than on earth would indicate that weight on earth is larger. In this case, you can find the earth weight by multiplying the moon weight to 6 (since it is 1/6). So, using this formula, if a person weighs 16 pounds on the moon, he would weigh 16 * 6 = 96 pounds on earth.

To check if this is reasonable, if you have the earth weight, you can divide by 6 to see if you return to the original moon weight. In this case, 96 / 6 = 16, which is the given moon weight, so the answer seems reasonable.

Learn more about Weight Conversion here:

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In an isosceles triangle , one angle measures 20 degrees. What are the measures of the other two angles.80 and 80 degrees
90 and 90 degrees
20 and 140 degrees
20 and 60 degrees

Answers

Answer:

Other two angles are 80 and 80 degrees

Step-by-step explanation:

In an isosceles triangle , one angle measures 20 degrees.

In an isosceles triangle two angles are equal

In a triangle , we have three angles

one angle is 20 degree. sum of angles in a triangle is 180 degree

other two angles is equal to 180 - 20 = 160

other two angles are of equal degree so we divide by 2

160/2= 80

Other two angles are 80 and 80 degrees

80+80=160+20=180

triangles should always equal 180

Write the missing fraction (numbers) to complete the multiplication fact. __ × 1/4 = 7/8

Answers

Hello!

Answer:

$\Large \boxed{\sf x = (7)/(2) }$

Step-by-step explanation:

Let the unknown be x:

$\sf x * (1)/(4) = (7)/(8)$

Let's solve this equation to find the unknown:

◼ Divide both sides by 1/4:

$\sf x * (1)/(4) / (1)/(4) = (7)/(8) / (1)/(4)$

◼ Simplify both sides:

$\sf x = (7)/(8) / (1)/(4)$

◼ Simplify the right side:

$\sf x = (7)/(8) * (4)/(1)$

$\sf x = (7)/(8) *4$

$\sf x = (7 *4)/(8)$

$\sf x = (28)/(8)$

$\boxed{\sf x = (7)/(2) }$

Final answer:

The missing fraction to complete the multiplication fact is **2/3**.

Explanation:

To find the missing fraction, we can set up the equation as follows: $**x × 1/4 = 7/8**$ , where **x** represents the missing fraction. To solve for $**x**,$ we'll isolate it on one side of the equation.

First, we'll multiply both sides of the equation by the reciprocal of 1/4, which is 4/1 (or simply 4):

$**x × 1/4 × 4 = 7/8 × 4**$

This simplifies to:

$**x = 7/2**$

Now, we need to express 7/2 as a fraction with a denominator of 8. To do this, we'll multiply both the numerator and the denominator by 4:

$**x = (7 × 4) / (2 × 4) = 28/8**$

Now, the fraction 28/8 is equivalent to 7/2, and it completes the multiplication fact. However, we can simplify 28/8 further by dividing both the numerator and denominator by their greatest common divisor, which is 4:

$**x = 28/8 ÷ 4/4 = 7/2 ÷ 4/4 = 7/8**$

So, the missing fraction is indeed **7/8**, which completes the multiplication fact $**x × 1/4 = 7/8**.$

Learn more about missing fraction.

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