Answer:
the an-sor is 3! took me a sec but i got it
Step-by-step explanation:
i had to subtract 8 from 20, to get 12, then divide 4 from 12 to get 3.
8 + 4 x 3 = 20
Answer:
A. 15
Step-by-step explanation:
Ooh, look! This triangle is a Pythagorean triple! Without even needing to use a formula, I can tell that you are correct and the answer is A. 15.
It's based off of a 3-4-5 right triangle, because 9-12-15 simplifies to that if you divide every term by 3. It's basically just a bigger version of a 3-4-5 triangle! Isn't math cool:)
Answer:
22
Step-by-step explanation:
£9.90 = 990p
x is number of 50p stamps
2x* 20 + x* 50 = 990
40x+50x = 990
90x = 990
x = 11
2x = 22
11 50p stamps
22 20p stamps
check:
11*50+22*20 = 550 + 440 = 990
Answer:
90 red cars, 150 blue cars
Step-by-step explanation:
Divide 240 by 8. 8 comes from the 3:5 ratio (3+5). 240/8=30. 30x3=90, 30x5=150.
Answer:
Josie and Emmanuel are the same.
Step-by-step explanation:
By pluggin the numbers given into the equations, you find that Josie and Emmanuel are 5/8 while Maria is 120.