7b ÷ 12 = 4.2 What is b?

Answers

Answer 1

Answer: $(7b )/(12) = 4.2 \ \ /*12 \n \n7b=4.2*12\n \n7b= 50.4 \ \ \/:7\n \n(7)/(7) \ b= (50.4 )/(7)\n \nb= 7.2$

Answer 2

Answer: 7b / 12 = 4.2

4.2 * 12 = 50.4

50.4 / 7 = 7.2

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$15 lunch; 20% tip what's your total
please help

Answers

18$ bc 20% of 15 is 3 so, 15+3=18

tip amount=$3.00
total to pay=$18.00
total per person=$18.00

40 oz > 3 lb true or false?

Answers

1lbs is 16oz, so do the math: 16x3 is 48. 3lbs is 48oz, meaning this is false.

Which is greater 1/5 or 1/10

Answers

1/5. One fifth is equal to 0.2, while 1/10 is 0.1

1/5 would be greater. Say you had two pizzas both the same size one was cut into five slices the other cut into ten the pizza only cut into five slices would give you the larger slices.

What is the approximate volume of a cone with a height of 11 ft and radius of 3 ft?Use 3.14 to approximate pi, and round answers to two decimal places if necessary. Actually ttype in 3.14 don't use the symbol because it adds more numbers
___ft3
$\pi$ don't use this do 3.14

Answers

Substitute the values of the radius (r=3), the height (h=11), and an approximation of Pi (3.14) into the formula to find the volume of the cone.
V≈+1/3⋅3.14⋅3^2⋅11

Simplify.
Write 3.14 as a fraction with denominator 1.
V≈+1/3⋅3.14/1

Combine 1/3 and 3.14/1 to get 3.14/3.
V≈+3.14/3

Replace back in to larger expression.
V≈+3.14/3⋅3^2⋅11

Divide 3.14 by 3 to get 1.04666667.
V≈+1.04666667⋅3^2⋅11

Raise 3 to the power of 2 to get 9.
V≈+1.04666667⋅9⋅11

Multiply 1.04666667 by 9 to get 9.42.
V≈+9.42⋅11

Multiply 9.42 by 11 to get 103.62.
V≈+103.62

Remove trailing zeros from 103.62.
V≈+103.62ft^3

Volume:
V≈+103.62ft^3

so volue of a cone=1/3 times (area of base) times height
area of base=circle so

find area of base/circle

pi times r^2
3.14 times 3^2
3.14 times 9
28.26

1/3 times 28.26 times 11=103.62 cm^3

How can I right this in slope intercept form -7x+y=-19

Answers

slope intercept form is always y=mx+b, m is = to the slope, and b is = to the y intercept, so u need to get the x on the right side.
-7x+y=-19
+7x +7x
y=7x-19
and there u go, y=7x-19

6x + 8 = 50 solve equation