2 years ago

SOMEONE HELP ME WITH THIS MATH PLS

1 answer:

6 0

Answer: add

Step-by-step explanation:

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Pani-rosa [81]

Answer: $\frac{12}{7}\ \text{hours}$

Step-by-step explanation:

Given

New mail carrier takes 4 hours for delivery i.e.

New mail carrier completes $\frac{1}{4}$ part of work in 1 hour

Old mail carrier takes 3 hours for delivery i.e.

mail carrier completes $\frac{1}{3}$ part of work in 1 hour

If they work together, they complete the work in x hours i.e.

$\Rightarrow \dfrac{1}{x}=\dfrac{1}{4}+\dfrac{1}{3}\\\Rightarrow \dfrac{1}{x}=\dfrac{3+4}{12}\\\Rightarrow x=\dfrac{12}{7}\ \text{hours}$

4 0

3 years ago

jenyasd209 [6]

This is one of the photos I used to answer, I’m going to send the second one

6 0

3 years ago

Lyrx [107]

Answer:

3(x+1)=2(x-1)

3x+3=2x-2

3x-2x=-2-3

x=-5.

3 0

3 years ago

LekaFEV [45]

Answer:

33 1/3 please tank this

Step-by-step explanation:

6 0

3 years ago

MrRissso [65]

First degree polynomial w two terms. a polynomial means there is more than one term and 2x is one term and 8 is the other :) hope this helped

4 0

3 years ago