Answer:
x = -2
Step-by-step explanation:
y = -3x + 2.5
if y = 8.5 then:
8.5 = -3x + 2.5
-3x = 6
x = -2
Answer:
I think it is A
Step-by-step explanation:
Because it would be 88=11x the you would divide 11x by 11 to get x the 88 divided by 11= 8 so, Thus saying x=8
AFTER 25%
oriignal=100%
discount of 25% means minus 25%
100%-25%=75%
therefor
180=75% of original
180=0.75 times originail
divide both sides by 0.75
240=original
$240
Answer:
<em>The ratio of the diameter of ball A to the diameter of ball B is 10:19.</em>
Step-by-step explanation:
<u>Ratios</u>
A ratio is a relation between two quantities and it's calculated as a division. For example, the ratio between 8 and 4 is 8:4 = 8 / 4 = 2.
We are given the diameters of two balls as follows:
The diameter of the ball A=30mm
The diameter of the ball B=5.7 cm = 57 mm
The ratio of the diameter of ball A to the diameter of ball B is 30:57. Dividing both numbers by 3, we have: ratio=10:19
The ratio of the diameter of ball A to the diameter of ball B is 10:19.
