Im so lost..
5n + 34 = -2 (1 - 7n )

Answers

Answer 1

Answer: first, you can distribute the -2 to 1 - 7n
the new equation is 5n + 34 = -2 + 14n
then, you can add 2 to both sides to cancel the -2 on the right
now you have 5n + 36 = 14n
after this, you add -5n to both sides, again, to cancel the 5n on the left
you are left with 34 = 9n
lastly, divide both sides by 9 to find the value of n, which is 4.

Answer 2

Answer: The answer for
-3 (4x+3) +4 (6x+1) =43
is

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Sue And Juanita Were Biking On The Track Around Their Town Park. Sue Started First. When She Had Biked 9 Laps, Juanita Had Biked 3 Laps. When Juanita Had completed 12 laps, Sue had completed 30 laps. did both rates remain steady
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Paul is three times as old as Mary and Peter is four times as old as Mary,If the sum of their ages is 64, how old are Peter,Paul,and Mary.

Answers

Let Mary's age be x.

Paul is three times as old as Mary, so Paul's age would be 3x.

Peter is four times as old as Mary, so Peter's age would be 4x.

The sum of their ages is 64
⇒ Paul's age+ Peter's age+ Mary's age= 64
⇒ 3x+ 4x+ x= 64
⇒ 8x= 64
⇒ x= 64/8
⇒ x= 8

Paul's age is: 3x= 3*8= 24

Peter's age is: 4x= 4*8= 32

Final answer: Paul is 24 years old.
Peter is 32 years old.
Mary is 8 years old.

Hope this helps~

Someone drove 20 miles in 24 minutes at this rate how many miles did they drive in 6 minutes

Answers

distance = rate * time (I will abbreviate as d = rt)
d = rt, so r = d/t
r = 20mi/24min
= 0.833333 mi/min.

d = rt again for the new time
d = 0.8333333 mi/min * 6 min = 5 miles

What is the volume of this model

Answers

Let me see if I can help...
First let's split the shape into two rectangles.
Use the formula V = lwh or V = Bh ....
To find the volume of the bottom rectangle we multiply...
V = (4*2) x 1
This gets us 8 in³.
To find the volume of the top triangle we multiply...
V = (2*1) x 2
This gets us 4 in³.
Now just add 8 + 4 and you will get 12 in³.
Hope this helps you.
(If you need any more explanation I'm happy to help you.)

R^2 + 4r = 0 please show work

Answers

${ r }^( 2 )+4r=0\n \n r\left( r+4 \right) =0\n \n \therefore \quad r=0\quad \wedge \quad r=-4$

$r^2 + 4r = 0\nr(r+4)=0\nr=0 \vee r=-4$

YOU WILL BRAINLIST ALSO 47 POINTS!!!1. It takes 1 banana and 3 scoops of ice cream to make a banana split. If an ice cream shop scooped 42 scoops of ice cream into banana splits, how many bananas did they use? [Type your answer as a number.]
a0 bananas ___

2. At an amusement park, Corey spends 7 minutes on a ride for every 20 minutes he spends waiting in lines. If he waits in line for 60 minutes, how many minutes does he spend on rides? [Type your answer as a number.]
a0 minutes __

3. A zoo has 3 mammals for every 5 reptiles. If the zoo has 72 mammals, how many reptiles does it have? [Type your answer as a number.] __

Answers

Answer:

Please Mark Brainliest!

Step-by-step explanation:

i think it would be 14 bananas if u take 3 divided by 42

hope that is right.

he rides for 7 min and waits in line for 20 min, if he was to wait in line for 60 min then he would ride for 21 min, if you divide 20/60 then you'll get 3. Multiply the 7 with that 3 and you'll get "21".

120

Which ordered pair does NOT lie on the graph of h(x )= -2x + 7I have no idea how to solve this, please help me! Thanks!