Which statement could be proved false using a counterexample?

An acute angle is 89 degrees.

Some acute angles are more than 90 degrees.

All acute angles are 30 degrees.

All acute angles are less than 90 degrees.

What is 15/4 into a fraction greater than one

Identify the translation rule on a coordinate plane that verifies that triangle A (-5,1), B (-2,7), C (0,1) and triangle A' (-3,2), B' (0,8), C' (2,2) are congruent

One day a toy store sold 3 xylophones and 3 yo-yos for $33. another day it sells 2 xylophones and 1 yo yo for $19. equations for the two days are 3x+3y=33 and 2x+y=19 where x is the value of one xylophone and y is the value of one yo-yo.

Lorrie wants to determine the average amount of time that students at her school spend on the computer each day. There are 350 students in 15 classes. The number of boys and girls is approximately equal.

If f is the variable, which mathematical sentence expresses the information below? The number of fish in the tank plus 6 more adds up to 15 fish. A. f + 15 = 6 B. 15f = 6 C. 6f = 15 D. f + 6 = 15

How to solve the problem 6:8.94

Simplifying Ratios 20:10 30:36 54:12

Write an equation Alice Barbara and Carol or sisters Alice is three years younger than Barbara and Barbara is five years younger than Carol together the sisters are 68 years old how old is Barbara let b equal Barbara

There are three options for fans purchasing a band's new release CD. They can purchase the CD, a premium CD bundle, or a deluxe CD bundle. A CD costs $15. A deluxe CD bundle costs the same as one CD and 2 premium CD bundles.

Carol has two cats rover and Bobo. Rover eat three fourths of a can of cat food each day and bobo eat a half of a can of cat food each day. Cat food cost five dollars for three cans. It's is only sold in three can packs.