0.9 is 90%
57.6% is 0.576
Answer:
Theresa school has greater % of girls
Step-by-step explanation:
Given
Number of girl in the Anthony school = 260
Total student in Anthony school = 500
% of girl in the Anthony school = 260/500 * 100 = 52 %
Number of girl in the Theresa school = 360
Total student in Theresa school = 600
% of girl in the Theresa school = 360/600 * 100 = 60%
Theresa school has greater % of girls
a) The speed of car was 60 mph.
b) The speed of car was 45 mph.
Step-by-step explanation:
Given,
a = actual skid marks
p = test skid marks
Formula;
![s=30*\sqrt{\frac{a}{p}}\\](https://tex.z-dn.net/?f=s%3D30%2A%5Csqrt%7B%5Cfrac%7Ba%7D%7Bp%7D%7D%5C%5C)
a) a = 144 feet, p = 36 feet
Putting in formula;
![s = 30*\sqrt{\frac{144}{36}}\\\\s=30*\sqrt{4}\\\\s=30*2\\\\s=60](https://tex.z-dn.net/?f=s%20%3D%2030%2A%5Csqrt%7B%5Cfrac%7B144%7D%7B36%7D%7D%5C%5C%5C%5Cs%3D30%2A%5Csqrt%7B4%7D%5C%5C%5C%5Cs%3D30%2A2%5C%5C%5C%5Cs%3D60)
The speed of car was 60 mph.
b) a = 153 feet, p = 68 feet
Putting in formula;
![s=30*\sqrt{\frac{153}{68}}\\\\s=30*\sqrt{2.25}\\\\s=30*1.5\\\\s=45](https://tex.z-dn.net/?f=s%3D30%2A%5Csqrt%7B%5Cfrac%7B153%7D%7B68%7D%7D%5C%5C%5C%5Cs%3D30%2A%5Csqrt%7B2.25%7D%5C%5C%5C%5Cs%3D30%2A1.5%5C%5C%5C%5Cs%3D45)
The speed of car was 45 mph.
Keywords: substitution, speed
Learn more about substitution at:
#LearnwithBrainly
Answer:
4
Step-by-step explanation:
(10-x)/x=3/2
so 2*(10-x)=3x
20-2x=3x
+2x +2x
20=5x
x=20/5
x=4
verify
(10-4)/4=3/2
6/4=3/2
TRUE
the blue dot on the number of line is -11.3