Answer:
Step-by-step explanation:
r = 7 cm
h = 15cm
pi = 3.14
Top and bottom (These questions drive you crazy when you don't know if there is both a top and bottom).
Area = 2* pi *r^2 = 2 * 3.14 * 7^2
Area = 2 * 3.14 * 49
Area = 307.72 Don't round this.
Cylinder body
Cylinder body = Circumference * h = 2*pi * r * h
Cylinder body = 2* 3.14 * 7 * 15
Cylinder body = <u> 659.4</u>
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Total = 967.12
Rounded 967.1 Answer
X+y=3
x-y=21
x=3-y
3-y-y=21
-2y+3=21
-2y=18
y=-9
x = 3-(-9) = 12
Two numbers are 12 and -9.
Hope this helps.
5/7 are wearing jeans....about 27 students.....so the ones wearing jeans are 5/7 of the 27 students....." of " means multiply
5/7 * 27 = 135/7 = 19.28.....so about 20 students are wearing jeans
This is system of equations and as such there are two methods of solving: elimination and substitution. Luckily Y is already isolated here, so in this case we just have to put in the value of y into 3x + 2y = 6
To do this we simply do:
3x + 2(-3/2+5) = 6
Distribute the 2 into the brackets
3x + -6/2 + 5 = 6
Move the 5 over and simplify the fraction
3x + (-3) = 1
Move the three over.
3x = 4
Isolate x
x=4/3
Step-by-step explanation:
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