Answer:
1 pizza was left.
Step-by-step explanation:
If they didn't eat 1/2 of one pizza, 1/2 is left of one pizza.
If they didn't eat 2/4 of the other pizza, 2/4 is left of that other pizza/
2/4+1/2=2/4+2/4=1
Therefore, 1 pizza was left
Answer:
a. 5 sets of tires
b. 16 times
Step-by-step explanation:
total distance commuted by the truck = 160,000 miles
a.tires of the truck are changed after every 40,000 miles
40,000 to 80,000 to 120,000 to 160,000 he will change his tires four times assuming he started his journey with the new tires. so, he needs uses a total of 5 sets of tires for the whole journey.
b. changes oil every 10,000 miles then to travel 160,000 miles
= 
= 16 times in whole journey
Answer:
Step-by-step explanation:
Let 
, a reflection over the x-axis consists in the following operation:
If we know that 
and 
, then the points translated over the x-axis are 
and 
, respectively. The most precise description of the shape is a rectangle for the following facts:
1) 
and 
.
2) 
and 
have the same x-component.
3) 
and 
have the same x-component.
4) and have the same y-component.
5) and have the same y-component.
A representation of the shape is included below as attachment.
Answer:
Required number is 4.
Step-by-step explanation:
Let the required number be a.
Given,
Sum of ten times the integer and seven times it’s square is 152.
= > Ten times of a + seven times of it's square = 152
= > 10( a ) + 7( a )^2 = 152
= > 10a + 7a^2 - 152 = 0
= > 7a^2 + 10a - 152 = 0
= > 7a^2 + ( 38 - 28 )a - 152 = 0
= > 7a^2 + 38a - 28a - 152 = 0
= > a( 7a + 38 ) - 4( 7a + 38 ) = 0
= > ( a - 4 )( 7a + 38 ) = 0
= > a = 4 or - 38 / 7
Hence the required number is 4.
I believe the answer would be B.. it has the steepest negative slope
