To find area you need to multiply
length x width

Since 49 can be square rooted it equals seven

L x W = Area
Area = 7 x 7
Area = 49

Meaning since it’s a square the perimeter is
7 by 7 by 7 by 7 in other words 7 + 7 + 7 + 7 OR 7 x 4(equal sides)

4 0

2 years ago

Marcos had 15 coins in nickels and quarters. He had 3 more quarters than nickels. He wrote a system of equations to represent th

Gwar [14]

Answer:

6 nickels and 9 quarters

Step-by-step explanation:

x- nickels

y- quarters

----------------

the 2 equations are:

x+y=15
y-x= 3

add up the 2 equations:

2y= 18
y=9

then

x= 15-9
x=6

8 0

3 years ago

The temperature on Wednesday at 5:00 p.m. was 15°F. In the following 12 hours, the temperature dropped 22°F. The temperature on

zmey [24]

Answer:

-7*F, and the temperature increased by 34*F

Step-by-step explanation:

you subtract 22 from 15 and then that equals -7*F then you subtract -7*F from 27°F and you get 34°F

3 0

3 years ago