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3 years ago

In order to solve the following system of equations we add :

Mathematics

1 answer:

vlabodo [156]3 years ago

5 0

False, you want to subtract in order to get rid of the 2x in both equations

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Ship A receives a distress signal from the east, and ship B receives a distress signal from the same vessel from the northwest.

salantis [7]

Hello,
Please, see the attached file.
Thanks.

6 0

3 years ago

Read 2 more answers

Ron's recycle shop had an old paper-shredding machine. Business was good, so he bought a new paper-shredding machine. The old ma

levacccp [35]

Answer: 1 hour 20 minutes

Step-by-step explanation:

Given : The old machine could shred a truckload of paper in 4 hours.

Rate of work done by old machine = $\dfrac{1}{4}$

The new machine could shred the same truckload in 2 hours.

Rate of work done by new machine = $\dfrac{1}{2}$

Let 't' be the time taken by both of them working together , then we have the following equation:-

$\dfrac{1}{t}=\dfrac{1}{4}+\dfrac{1}{2}\\\\\Rightarrow\dfrac{1}{t}=\dfrac{1+2}{4}\\\\\Rightarrow\dfrac{1}{t}=\dfrac{3}{4}\\\\\Rightarrow t=\dfrac{4}{3}=1\dfrac{1}{3}\ \text{ hours}$

Since 1 hour = 60 minutes

Then, $\dfrac{1}{3}\ \text{ hours}=\dfrac{1}{3}\times60=20\text{ minutes}$

Hence, it will take 1 hour 20 minutes to shred the same truckload of paper if Ron runs both shredders at the same time.

8 0

4 years ago

in one week katy walks 1,720 meters and runs 1,925 meters. she performs the same workouts for three weeks. how many meters does

Klio2033 [76]

Answer:

10,935 meters.

Step-by-step explanation:

Find how many meters she walks in 1 week, so you add the 1,720 and the 1,925 and you would get 3,645. If she does the same thing for 3 weeks, you multiply the 3,645 by 3, so you get 10,935 meters

6 0

3 years ago

Jordy works at the block factory. he has an order to pack 3,280 blocks. how can he pack the blocks using the fewest packages

sineoko [7]

By packing the 3280 blocks in one package?

4 0

3 years ago

Read 2 more answers

Find the first four terms of the given sequence tn = (-1)n(n).

Leno4ka [110]

First we rewrite the expression correctly:
tn = ((-1) ^ n) * (n)
We now look for each of the terms:
t1 = ((-1) ^ 1) * (1) = - 1
t2 = ((-1) ^ 2) * (2) = 2
t3 = ((-1) ^ 3) * (3) = - 3
t4 = ((-1) ^ 4) * (4) = 4
The first four terms of the sequence are then:
-1, 2, -3, 4
Answer:
B.
-1, 2, -3, 4

3 0

4 years ago