3 years ago

1. Erwin hiked 5/7 of a kilometer while

Mathematics

1 answer:

Juli2301 [7.4K]3 years ago

4 0

Answer:

the number of kilometers hiked in all is $\frac{29}{21}$

Step-by-step explanation:

The computation of the number of kilometers hiked in all is shown below:

= Erwin + Jericho

$= \frac{5}{7} + \frac{2}{3}\\\\= \frac{15 + 14}{21} \\\\= \frac{29}{21}$

Hence, the number of kilometers hiked in all is $\frac{29}{21}$

You might be interested in

18 What is the value of x? O 3 10 2y + 4 10 + 2x 000

borishaifa [10]

Answer:

10 = 2y + 4

6 = 2y

y = 3

Step-by-step explanation:

18 = 10 + 2x

8 = 2x

x = 4

7 0

2 years ago

Find 2.2℅ of 18 2/11?

UNO [17]

The answer to ur question is 0.396
2.2% * 18 = 0.396

7 0

3 years ago

Read 2 more answers

How much is 4 (x+3)=16

Radda [10]

Answer:

x=1

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

Which of the following equations is an example of a quadratic equation?

Alexxandr [17]

Y=x^2-5 due to the fact that it has four parts even though it only looks as if it has three here. Just look for a square root and that is the one

6 0

3 years ago

Two mechanics worked on a car. The first mechanic charged $55 per hour, and the second mechanic charged $60 per hour. The mechan

Nady [450]

Answer:

15 and 5 hours.

Step-by-step explanation:

Call x the time taken by the first chap, and y the second.

$\left \{ {{x+y = 20 \atop {55x+60y=1125}} \right.$

Let's divide by 5 and play with the LHS of the first equation a bit:

$11x+ 11y +y = 225\\11(x+y)+y= 225$ we know how much x+y is ( first equation!) let's solve.

$11(20) +y = 225 \rightarrow y=5$ At this point it's easy to check that $x=15$

8 0

2 years ago