2/4 and 4/8 are equivalent because you can use the butterfly method of multiplication. Meaning you multiply the numerator by the other fractions denominator and vis-versa.

Step-by-step explanation:

2 x 8 = 16

4 x 4 = 16

3 0

2 years ago

Find the original price of a pair of shoes if the sale price is $40 after a %20% discount.

borishaifa [10]

That would be around $200. Because you would take 40 devide by .2 and get 200.

4 0

2 years ago

One airplane located 200km north and 50km east of an airport. A second plane at the same altitude is located 30km north and 100k

grigory [225]

Answer: 350

Step-by-step explanation:

7 0

1 year ago

Read 2 more answers

1. (k+7)² =289<br>2. (2s-1)² =225<br>3. (x-4)² =169<br><br>please help me answer these :)

professor190 [17]

$(k+7)^2 =289\\
|k+7|=17\\
k+7=17\vee k+7=-17\\
k=10 \vee k=-24$

$(2s-1)^2 =225\\
|2s-1|=15\\
2s-1=15\vee 2s-1=-15\\
2s=16 \vee 2s=-14\\
s=8 \vee s=-7$

$(x-4)^2 =169\\
|x-4|=13\\
x-4=13 \vee x-4=-13\\
x=17 \vee x=-9$

6 0

3 years ago

Read 2 more answers