What does n equal in this equation?
-5n+8= -7
Answers
-8 -8
-5n = -15
/-5 /-5
n = 3
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Answers
Answers
Answer:
T = 21/13
Step-by-step explanation:
Step 1: Make an expression
T is to 9 as 7 is to 39
Step 2: Cross multiply
39(T) = 7(9)
39t = 63
Step 3: Divide both sides by 39
39T / 39 = 63 / 39
T = 21 / 13
Answer: T = 21/13
Answers
-- calculate the volume of the bowl
-- calculate the volume of the ladle
-- divide the volume of the bowl by the volume of the ladle
and we may even start down that path. But we soon realize that
it's going to be painful and take a lot of time. So we stop right
where we are, and consider our options.
We have two options:
#1). Give up, quit, and walk away.
#2). Find a smarter way to do it.
Look at the formula for the volume of a sphere:
Volume = (4/3 π) (radius³) .
Do you see that ? The radius³ is a factor in the volume of
everysphere. That means that if you multiplythe radius
of a sphere by (a number),the volume of the sphere gets
multiplied by (the same number)³ !
How does that help us with this problem ? Well, it alsomeans
that the ratio of the volumes of two spheres is
(the ratio of their radii)³.
Radius of the bowl = 15 inches
Radius of the ladle = 4 inches
Ratio of their radii = (15/4) = 3.75
So the bowl holds (3.75)³ as much as the ladle holds.
(3.75)³ = 52.73 ...
The bowl holds 52.73 ... times as much as the ladle.
After Grandma Edith scoops 52 ladle-fulls from the bowl,
there will be less than 1 ladle-full remaining in there.
And we did it all without even knowing π .
Volume (half sphere)=(1/2)(4/3)πr³=2/3πr³
radius=30 cm / 2=15 cm
Volume=(2/3)π(15 cm)³=2250π cm³
2) we calculate the volume of the ladle:
radius=8 cm/2=4 cm
Volume=(2/3)π(4 cm)³=128π/3 cm³
3) we calculate the number of ladles by the rule of three.
1 ladle----------------------128π/3 cm³
x------------------------------2250π cm³
x=(1 ladle * 2250π cm³) / (128π/3 cm³)=52.73 ladles≈52 ladles
Answer: 52 ladles.
change direction but are now perpendicular
no longer parallel because one line changed direction
no longer parallel because two lines changed direction
Answers
Answer:
the first one
Step-by-step explanation:
if you have a ladder with no steps and it is leaning on a wall it will be facing up if you carry that ladder sideways it will still be parrallel to the opposite poles
if this confuss you I will answer again
Answers
The kinetic energy of the soccer is 2.25 J.
What is Kinetic energy?
The kinetic energy of the soccer is the energy possessed by the soccer due to its motion and the can be determined using the following formula;
K.E = ¹/₂mv²
where;
- m is mass of the soccer
- v is the velocity of the soccer
Substitute the given parameters and solve for the kinetic energy of the soccer.
K.E = ¹/₂ x 0.5 x (3)²
K.E = 2.25 J
Thus, the kinetic energy of the soccer is 2.25 J.
Learn more about kinetic energy here: brainly.com/question/25959744
K.E =
m = 0.5 kg
v = 3 m/s
Plug in the given.
K.E =
= 2.25 J
8+h>2+3h
A) h>3
B) h>4
C) h<3
D) h<4
Answers
h - 3h > 2 - 8 . . . . . . . . (collecting like terms)
-2h > -6
h < -6/-2 . . . . . . . . (> changes to < when you divide with negative number and vice-versa)
h < 3 (i.e. the third option)