Answer:
x= -1
Step-by-step explanation:
since y is -5 then we would put that in the second equation:
2x - 4(-5) = 18
then it’s:
2x + 20 = 18
Then we subtract 20 from both sides
2x = -2
Last we divide both by 2 and we get x = -1
Answer:
Assuming that there are only 2 flavors of the sweet ⇻ strawberry & orange.
____________________
P (strawberry flavored sweet) = 0.8
P (orange flavored sweet) = ?
____________________
Now, we know that ➳ the value of probability ≤ 1. So, the probability of orange flavored sweets is less than 1.
____________________
So,
P (orange flavored sweet) = 1 - P (strawberry flavored sweet)
P (orange flavored sweet) = 
P (orange flavored sweet) = 
____________________
✐ The probability that the sweet is orange flavored is <u>0</u><u>.</u><u>2</u>
____________________
ʰᵒᵖᵉ ⁱᵗ ʰᵉˡᵖˢ
# ꧁❣ RainbowSalt2²2² ࿐
So we want to know what a full box is. We have the weight of half a box. So we can use the formula: (2 x 3/5) and you want to know the outcome of four full boxes. So (2x3/5)4
Or: 6/5 x 4
And the answer is 24/5. But if you want to simplify it, it’s 4 4/5
A. the distance covered by both ends = top distance+bottom distance
1.4 inches + 2.1 inches =3.5 inches
so each hour, both ends cover 3.5 inches
he time it'll take to burn the whole candle
10 inches/ 3.5 inches =2.857 hours
to find out how far from the top the flames meet,
1.4 inches x 2.854 hours = 4 inches
B. the middle of the candle is 10/2 = 5 inches
to meet at the middle, she should start
Top: 1.4 inches × x hours = 5 inches
x hours = 5/1.4 = 3.571 hours
Bottom : 2.1 inches × x hours = 5 inches
x hours = 5/2.1 = 2.38 hours
Answer:
Explanation:
First, we must determine the circumference of the paddle wheel.
The formula for the circumference of a circle is:
c
=
2
π
r
Where
r
is the radius of the circle.
However, we know
d
=
2
r
where
d
is the diameter of the circle.
Therefore:
c
=
2
r
π
=
d
π
Substituting
12
ft
for
d
gives a circumference of:
c
=
12
π
ft
The time it takes to complete 1 revolution can be found using the formula:
t
=
d
s
Where:
t
is the time it takes: what we are solving for in this problem.
d
is the distance traveled: we calculated this as
12
π
ft
s
is the speed traveled: from the problem we know this is
7.2
ft
sec
Substituting and calculating
t
gives:
t
=
12
π
ft
7.2
ft
sec
t
=
12
π
ft
sec
7.2
ft
t
=
12
π
ft
sec
7.2
ft
t
=
12
π
sec
7.2
t
=
1
.
¯
6
π
sec
Two find how long it would take for 100 revolutions we can multiply this time by
100
100
×
1
.
¯
6
π
sec
⇒
166
.
¯
6
π
sec
If a number is required for the answer we can use 3.14 as an estimate for
π
giving:
166
.
¯
6
π
sec
⇒
166
.
¯
6
×
3.14
sec
⇒
523
sec
Step-by-step explanation:
