All categories

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

When 14 is subtracted from 6 times a number, 40 is

Rzqust [24]

Answer:

4.5

Step-by-step explanation:

Let the number be x

6x-14 = 40

Add 14

6x = 40+14

6x = 54

Divide by 6

6x/6 = 54/6

x = 9

We want 1/2 of the number

1/2 of 9 is 4.5

6 0

3 years ago

The midpoint of AB is M(7,-2). If the coordinates of A are (8,3), what are the coordinates of B?

strojnjashka [21]

Answer:

Step-by-step explanation:

We can find it like:

$x_{B}= 2x_{M}- x_{A} = 2*7 - 8 = 14 - 8= 6\\ \\y_{B}= 2y_{M}- y_{A} = 2*(-2) - 3 = - 4 - 3= - 7$

The answer is B(6,-7).

Hope you understand.

4 0

4 years ago

Whats the parent and shift for y=x-6

Sonbull [250]

The parent function is either identity function or constant function
the translation is down 6

8 0

3 years ago

Pls i need HeLp 13 + 7 to the 2nd power ÷7 ______________________ 9 - 20 ÷ 4 +16

FromTheMoon [43]

Answer:

Step-by-step explanation:

By using Order of Operations, or Parenthesis, Exponents, Multiplication, Division, Addition, Subtraction, or (PEMDAS) for short.

4 0

3 years ago

Verify the identity. tan(θ) sin(θ) + cos(θ) = sec(θ)

MariettaO [177]

Step-by-step explanation:

first of all

$tan = \ \frac{ \sin}{ \cos }$

put above of equation

(sin/cos)(sin)+cos =sec

sin²/cos +cos=sec

take l.c.m

sin²+cos²/cos=sec

as sin ²+cos²=1 so

1/cos=sec

sec=sec

hence proved

4 0

4 years ago