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3 years ago

Kevin is 2 times as old as Gaberiela, 12 years ago, Kevin was 6 times as old as Gaberiela

Mathematics

1 answer:

Snezhnost [94]3 years ago

4 0

Answer:

Kevin was 2 times as old as Gabriela 12 years ago then Kevin was 6 times as old as Gabriela so now Kevin should be 36 years old because if you divide 12 by 2 it's gonna give you 6 so then he was 6 times old as Gabriela so now he's 36 years old.

Step-by-step explanation:

You might be interested in

Consider parallelogram VWXY below.

olchik [2.2K]

note:Parallelogram WXYZ not VWXY & I will answer the questions in the image b'cos I don't get your question.

Answers:

a.(i.)Slope of line YZ = 4/5

(ii.)Line adjacent line YZ is line YX,slope of YX =5/4

b.(i.)Length of line YZ =√41 units

(ii.)Length of line YX =√41 units

c.WXYZ is a rhombus.

Step-by-step explanation:

a.Slope=gradient(m)=(y₂-y₁)/(x₂-x₁)

(i.)m of line YZ=(y₂-y₁)/(x₂-x₁) where Y(-6,-1) & Z(-1,3)

(I believe you know what the y₂,y₁,x₂ & x₁ stand for.)

So m=(y₂-y₁)/(x₂-x₁),=(3-(-1))/(-1-(-6) =(4)/(5)=4/5

∴m of line YZ is 4/5

(ii.)m of line YX=(y₂-y₁)/(x₂-x₁) where Y(-6,-1) & X(-2,4)

So m=(y₂-y₁)/(x₂-x₁),=(4-(-1))/(-2-(-6) =(5)/(4)=5/4=1.25

∴m of line YX is 5/4

b.(i.)To find the length of line YZ,we have to express it as column vector YZ.

Vector YZ=OZ-OY,Z-Y=(-1,3)-(-6,-1)=(5,4)

Length=√x² plus y²=√5² plus 4²=√25 plus 16=√41 units

∴The length of line YZ is √41 units.

(ii.)To find the length of line YX,we have to express it as column vector YZ.

Vector YX=OX-OY,X-Y=(-2,4)-(-6,-1)=(4,5)

Length=√x² plus y²=√4² plus 5²=√16 plus 25=√41 units

∴The length of line YX is √41 units.

c.WXYZ is a rhombus.

5 0

2 years ago

Can someone explain how to solve #9

SVETLANKA909090 [29]

FeelsBadMan GL on that one

5 0

3 years ago

Jason has 75 feet of wallpaper border she wants to put up a wallpaper border around his Rectangular bedroom that measures 12‘ x

Lerok [7]

Answer:

Jason reasoning is incorrect

Jason should have calculated the perimeter of the room instead of calculating the area

Step-by-step explanation:

we know that

The perimeter of the rectangular bedroom is equal to

$P=2(L+W)$

where

$L=12\ ft\\W=14\ ft$

substitute

$P=2(12+14)$

$P=52\ ft$

we have that

$52\ ft < 75\ ft$

Jason has enough border for the whole job

therefore

Jason reasoning is incorrect

Jason should have calculated the perimeter of the room instead of calculating the area

3 0

3 years ago

What are the steps to solve multi-step equations? (in 5 steps)

vlada-n [284]

I have an answer for 4 steps if that helps any..
1.Parenthesis
2.Exponents
3. Multiplication/division (whatever comes first)
4. Addition/subtraction (whatever comes first)

7 0

3 years ago

For every 3 packages that Marcella wraps, she uses 1/2 of a roll of wrapping paper.

zalisa [80]

Answer:

She has wrapped 15 packages.

Step-by-step explanation:

Heres how I did it. I used my fingers for this, it's a little odd I know but it works. I put up one finger for each half. So each finger represents one half. I needed to get to 2 1/2 so I put up two finger and I said "that's one " because a half plus a half is a whole or just one. Then I put up one more finger and I said " That's one and a half". I then put up two more and then I had 2 1/5. What I did then was count how many fingers I had up. I had 5 fingers up. So then I multiplied 3 x 5 and that gave me 15. Hope I could help!

8 0

3 years ago