Answer:
-5=n
Step-by-step explanation:
75=3(-6n-5)
Distribute the 3
75=-18n-15
Add 15 to both sides
90=-18n
Divide both sides by -18 to get n alone
-5=n
Answer:

Explanation:
-40 - 6m + 1 = - 2
- Simplify Both Sides Of The Equation
−40 − 6m + 1 = −2
−40 + −6m + 1 = −2
(−6m) + (−40 + 1) = −2 (Combine Like Terms)
−6m + −39 = −2
= −6m − 39 = −2
−6m − 39 + 39 = −2 + 39
−6m = 37
-6m / -6 = 37 / -6

- PNW
Answer:
x=larger no
y= smaller no
Step-by-step explanation:
x+y=7--------(1)
x=16 + 2y------(2)
(2)--->(1)
16+2y+y = 7
3y + 16 = 7
3y = -9
y = -3//
so x=10
Answer:
<em>The speed of sound at 20°C is 343.42 m/s.</em>
<em>You have to wait 1.75 seconds to hear the sound of the bat hitting the ball</em>
Step-by-step explanation:
<u>Speed of Sound</u>
The speed of sound is not constant with temperature. Generally speaking, the greater the temperature, the greater the speed of sound.
The approximate speed of sound in dry air at temperatures T near 0°C is calculated from:

The air is at T=20°C, thus the speed of sound is:


The speed of sound at 20°C is 343.42 m/s.
To calculate the time to hear the sound after the batter hits the ball, we use the formula of constant speed motion:

Where d is the distance and t is the time. Solving for t:

Substituting the values v=343.42 m/s and d=600 m:

t = 1.75 s
You have to wait 1.75 seconds to hear the sound of the bat hitting the ball
Answer:
burrito price=$8
Taco Price=$6
Step-by-step explanation:
x=burrito price
y=taco price
3x+4y=48
solve for y
y=
−3
/4
x+12
plug in
6x+2y=60
6x+2(
−3
/4
x+12)=60
6x+2(
−3
/4
x+12)=60
x=8
now plug in for x
3x+4y=48
3(8)+4y=48
y=6
y=6
x=8
burrito price=$8
Taco Price=$6