2 years ago

A roll of wallpaper cost £7.85 richard buy 25 rolls of wallpaper estimate

Mathematics

1 answer:

joja [24]2 years ago

7 0

Answer:

Step-by-step explanation:

if we're estimating ,we're going to round up to 8 since you can multiply that easier. 25 times 8 is 200 so estimation will be around 200

You might be interested in

Please help me. I need to finish this!

kkurt [141]

Answer:

3x + 19 = 10x - 23

7x = 42

X = 6

180 - (2×37) = 106

3 0

2 years ago

This is easy can u help plss??

Maksim231197 [3]

Answer:

Step-by-step explanation:

cause

7 0

2 years ago

Which expression is equivalent to -51 - (-60)?

zzz [600]

Answer:

The answer is 9.

Step-by-step explanation:

I had the question on one of my quizzes.

6 0

2 years ago

Solve this: if [a]=2,then 1[a]0=120 feet, and if [c]=8, then 6[c]=68 feet

katrin2010 [14]

Well the answer would be 120=120 and 68=68

5 0

2 years ago

Identify the center and the radius of each.<br><br> x^+y^+26x-22y+281=0

inessss [21]

Answer:

Center (-13,11) , radius 3

Step-by-step explanation:

The given circle has equation

$x^2+y^2+26x-22y+281=0$

We compare this to the general equation.

$x^2+y^2+2ax+2by+c=0$

where (-a,-b) is the center.

This implies that;

2a=26

$\Rightarrow a=13$

2b=-22

b=-11

The center is therefore (-13,11)

The radius is given by

$r=\sqrt{a^2+b^2-c}$

$r=\sqrt{13^2+(-11)^2-281}$

$r=\sqrt{9}$

The radius is 3

3 0

2 years ago