Ella has 50 stacks of 10 pennies in each sack describe how to find how many pennies Ella had in all

Answers

Answer 1

Answer: she has 50 stacks with 10 pennies in each, so multiply 50 by 10
50*10 = 500
so she has 500 pennies in total.

Answer 2

Answer: Ella had 50 stacks of 10 pennies so you multiply 50 * 10=500 so she has 500 pennies

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Which choice describes a question that could be answered by moving the decimal point 3 places to the right?A.
dividing 14.09 by 3 over 10

B.
dividing 14.09 by 2 over 10

C.
multiplying 14.09 by 100

D.
multiplying 14.09 by 1,000
plz help i need it now!!!!!

Answers

D. Multiplying 14.09 by 1000. It'll move the decimal point three places over. Making it 14090

The answer is D. multiplying 14.09 by 1,000
hope it helps :-)!

The area of a square is 225 square centimeters. Find the length of a side. Find the length of the diagonal.

Answers

If the square's area is 225 square centimeters, that means length of it's one side is 15 centimeters, because the formula for a square's area is ${ a }^( 2 )$ where a is length side, in our case ${ a }^( 2 )=225$ and $\sqrt { { a }^( 2 ) } =\sqrt { 225 } \n a=15$ . So we know that one side's length is 15 we can find the diagonal. The solution is in the picture.

${ a }^( 2 )+{ b }^( 2 )={ c }^( 2 )\n { 15 }^( 2 )+{ 15 }^( 2 )={ c }^( 2 )\n 225+225={ c }^( 2 )\n 550={ c }^( 2 )\n \sqrt { 550 } =\sqrt { { c }^( 2 ) } \n \sqrt { 550 } =c\n 15\sqrt { 2 } =c$

Final answer:

To find the length of a side of the square, take the square root of its area. The length of a side is 15 centimeters. To find the length of the diagonal, use the Pythagorean theorem. The length of the diagonal is 15√2 centimeters.

Explanation:

To find the length of a side of a square, we can take the square root of its area. The area of the square is given as 225 square centimeters, so taking the square root of that will give us the length of a side. √225 = 15 centimeters.

To find the length of the diagonal of the square, we can use the Pythagorean theorem. The diagonal forms a right triangle with the sides of the square, so we can use a^2 + b^2 = c^2, where a and b are the lengths of the sides and c is the length of the diagonal. Plugging in the values, 15^2 + 15^2 = c^2. 225 + 225 = c^2. 450 = c^2. Taking the square root of both sides, c = √450. Simplifying, c = 15√2 centimeters.

Learn more about Finding the length of a side and diagonal of a square here:

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Zippy is 94 millimeters long and popcorn 8.7 centimeters how much longer is zippy in millimeters

Answers

8.7 CM would be 87 MM, so you just take that and subtract it from 94.
94-87=7. Zippy is 7MM longer. Hope this helps!

8.7 centimeters converted to millimeters is 87 millimeters. 94 - 87 = 7 millimeters.

So 3/18 divided by 5/8

Answers

We have such problem
$(3)/(18): (5)/(8)$
If we want divide 2 fraction we can multiply first times inverse of second fraction, so
$(3)/(18) : (5)/(8)= (3)/(18) * (8)/(5)= (3*8)/(18*5)= (24)/(90)= (24:6)/(90:6)= (4)/(15)$ - its the answer

$(3)/(18)$ ÷ $(5)/(8)$

When dividing fractions, you flip the second fraction

$(3)/(18) * (8)/(5)$ = $(24)/(90)$

Then you simplify by finding common factors for both the numerator and denominator

$(24)/(90)$ can be divided by 2 but you have to divide both the numerator and denominator

$(24)/(90)$ ÷ $(2)/(2)$ ⇒ $(12)/(45)$

3 is a factor for both the numerator and denominator so it can be used to divide them

$(12)/(45)$ ÷ $(3)/(3)$ ⇒ $(4)/(15)$

$(4)/(15) is your answer$

There are four options on the desert menu at a restaurant. Phillip and Paula like all of the choices equally, so they each choose a dessert at random. What is the probability that Phillip will choose apple pie and Paula will choose strawberry cheesecake for dessert? Express your answer as a decimal. Round your answer to nearest thousandth.

Answers

Answer:

I think like 1/2 of 0

Step-by-step explanation:

Answer:1/2

Step-by-step explanation:

Mrs. Gannon is having her class make a winter decorations using pine cones. If each decoration needs 11 pine cones and Mrs. Gannon ha 18 students in her class. How many pine cones does Mrs. Gannon need?

Answers

When you solve one of these types of word problems, using multiplication is the most efficient method.
If each student makes one decoration, then we can use the expression 11*18 to solve the problem. Or you could add eighteen elevens together, either method works.
11*18 = 198.
Mrs. Gannon needs 198 pine cones.
Hope that helped you!

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