Danny and Mark and Evans ages combined is 80. What was there combined age three years ago?

Answers

Answer 1
Answer:
Since there are three kids, 3x3=9. 80-9=71.  Danny and Mark and Evans ages combined is 71 years
Answer 2
Answer: Look At The Picture.







Good Luck!

Related Questions

1. Classify the figure in as many ways as possible.rectangle; square; quadrilateral; parallelogram; rhombus rectangle; square; parallelogram rhombus; quadrilateral; square square; rectangle; quadrilateral
What Is probability ?​
What is 3 times pi? pi is in the picture like that’s the symbol.
FASTTTTTTTTT PLEASEEEEEEEEEEE
In the middle of the page, draw a rectangle 3 inches long and oriented vertically. Both shorter sides should be an inch. 2. In the center of the upper 1/3 of the rectangle, draw a circle. In the center of the middle 1/3 of the rectangle, draw another circle. In the center of the lower 1/3 of the rectangle, draw another circle what would the answer be

Jocy is making a wooden picture frame that will have a width that is 12 inches shorter than its length. If he uses 100 inches of wood, what are the dimsensionsof th frame?

Answers

If he uses 100 inches of wood to make the frame, then 100 is double the sum of the length and the width, so 50 is the sum of the length and the width.

If the length is 12 more than the width, then the width is (50-12)/2=19.  The length, then, is 19+12=31.

Help pleaseGiven the sets M = {5, 6, 7, 8, 9} and N = {6, 8, 10, 12, 14}, the set M∩N is identified by which notation below?

A- {6, 8}

B- {5, 6, 6, 7, 8, 8, 10, 12, 14}

C- {5, 6, 7, 8, 9, 10, 12, 14}

D- ø

Answers

The symbol ∩ means the "intersection" of two sets. In other words, it is the set of terms that are found in both sets. In the case of M∩N, the only common terms are {6,8}, making choice A the correct answer.

Dexter is making a sculpture withthe dimensions shown. What is the
surface area of the sculpture? Use
3.14 for pi.

Answers

To find the surface area of the entire sculpture, you need to add up the surface area of each part of the sculpture.  Overall, you see two triangles connected by two rectangles at the top, and the half of a cylinder at the bottom.

To find the area of one of the two triangles, you use the equation A = (1/2)bh, where b = the base of the triangle and h = the height.  So, the area of one triangle is:

How do I solve for x in the equation 5^x=3125? Also in 5^x=1/125, 9^x=243, 4^x=1/32, and 3*2^x=96?

Answers

remember
if x^m=x^n and x=x, m=n
also
x^-m=1/(x^m)
(x^m)^n=x^(mn)

try to match bases

5^x=3125
5^x=5^5
x=5

5^x=1/125
1/125=1/(5^3)=5^-3
5^x=5^-3
x=-3


9^x=234
3^(2x)=3^5
2x=5
x=2.5


4^x=1/32
1/32=1/(2^5)=2^-5
2^(2x)=2^-5
2x=-5
x=-2.5


3*2^x=96
first divide both sides by 3
2^x=32
2^x=2^5
x=5




5^x=3125
x=5

5^x=1/125
x=-3


9^x=234
x=2.5

4^x=1/32
x=-2.5

3*2^x=96
x=5

5^x=1/125

Take log of both sides

log(5^x)=log(1/125)

x*(log(5))= log(1/125)

x= log(1/125)/ log(25)

x=-3


9^x= 243

Take log of both sides


log(9^x)= log(243)

x*(log(9))= log(243)

x= log(243)/ log(9)

x= 2.5


4^x= 1/32

Take log of

log(4^x)=log(1/32)

x*(log(4))=log(1/32)

x= log(1/32)/log(4)

x= -2.5


3*2^x=96

Divide both sides by 3 so we can make it more simply

3(2^x)/3= 96/3

2^x= 32

Take log of

log(2^X)=log(32)

x(log(2))= log(32)

x= log(32)/log(2)

x=5


As you can see, I only used a simple way for all of them.


I hope that's help:0

Find the total price
of a $4.00 shirt
including the 7%
sales tax.

Answers

I think u have to multiply 4 times .07 then that get you .28 cents

How Can associative Property be used to mentally find 48+82?

Answers

Associative property of addition represents this equation:
a + b = b + a
So, how would it be helpful with this given equation?
=> 48 + 82
=> Let's start with the ones place value.
(2 + 8) = 10, bring down 0, carry 1 then ( 4 + 8) = 12 + 1 = 13
So the answer is 130.
If we are going to do it vice versa, still expect that the same answer will occur.