3 years ago

When i was 4 years old, my sister was half my age. now my sister is 12 years old. how old am i?

Mathematics

1 answer:

Airida [17]3 years ago

8 0

Fourteeeeeeeeeeeeeeeeeeen

You might be interested in

What percent of 40 is 9

iren [92.7K]

Answer:

22.5%

Step-by-step explanation:

9/40 x 100= 22.5

3 0

3 years ago

Urgent !!!!!!!!!!!!!!!!!!!!

nexus9112 [7]

The answer to the equation is x<-2

8 0

4 years ago

Read 2 more answers

The leg of an isosceles triangle has a length 2x+4 and the base has length 3x. The

ikadub [295]

Answer:

$Base = 57$

Step-by-step explanation:

Given

$Length = 2x + 4$

$Base = 3x$

$Perimeter = 141$

Required

Determine the length of the base

The perimeter of an isosceles triangle is:

$Perimeter = 2*Length + Base$

$141 = 2 (2x + 4) + 3x$

$141 = 4x + 8 + 3x$

Collect Like Terms

$4x + 3x = 141 - 8$

$7x = 133$

Divide both sides by 7

$x = 19$

To get the base, we substitute 19 for x in $Base = 3x$

$Base = 3 * 19$

$Base = 57$

4 0

3 years ago

Una paid $2.14 for a notebook. She gave the cashier a $5 bill.<br> How much change did she receive?

Blizzard [7]

Answer:

$2.86 thats how much sh gets back

6 0

4 years ago

Read 2 more answers

A line that includes the point (2, 9) has a slope of 8. What is its equation in slope-intercept

sleet_krkn [62]

Answer:

y-8x+7=0

Step-by-step explanation:

slope(m)=8

using slope intercept form of equation of staright line we get

y=mx+b

y=8*x+b

y-8x=b ................ eq(i)

since the line include the point (2,9) it satisfies the euation,

here x=2 and y=9

equation: y-8x=b

9-8*2=b

9-16=-b

-7=b

substituting the value of b in eq(i) we get

y-8x=-7

y-8x+7=0 is a required equation of the line.

8 0

3 years ago