<h3>
Answer:</h3>
16) w = 4/15
18) r -16 = 25; Ronald is 41.
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Step-by-step explanation:</h3>
16) Multiply by the reciprocal of the coefficient of w:
(1/3)·3w = (1/3)·(4/5)
w = 4/15
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18) Ronald's age is unknown and what we're asked to find. Let r represent Ronald's age in years. Then Wendy's age, being 16 years less than Ronald's, can be represented two ways:
Wendy's age: r-16 . . . . . . 16 years younger than Ronald
Wendy's age: 25 . . . . . . .given
We can equate these two versions of Wendy's age to have a subtraction equation to find Ronald's age:
r - 16 = 25 . . . . . . . the equation
r = 41 . . . . . . . . . . . the solution; found by adding 16 to both sides
The correct answer to the question is 3/8
Answer:
I think 32% (Let me know if I am wrong)
Step-by-step explanation:
How will the graph of this function change if the temperature is at 20° at the start of the experiment?
The line will shift vertically down by 40°.
The line will shift vertically up by 20°.
The line will shift vertically up by 40°.
The line will shift vertically down by 20°.
Answer : The line will shift vertically down by 20°.
f(x) = 20x + 40°
In f(x), the initial temperature is 40° celsius
If we change the initial temperature 40° celsius to 20° celsius, we replace 40 by 20 in f(x)
The graph will shift vertically when we change the y intercept 40 to 20
40 - 20 = 20
So the line will shift vertically down by 20°.
The graph is attached below.
Answer:
a
Step-by-step explanation:
the volume (V) of a sphere is calculated as
V = πr³ ( r is the radius )
here the diameter = 15, then r = 15 ÷ 2 = 7.5 , then
V = π × 7.5³
= π × 421.875
=
≈ 1767 cm³ ( to the nearest cubic cm )