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olga_2 [115]
3 years ago
9

Set up the equation to find the AREA of the SMALL rectangle with a length of (x) and width (x+7)

Mathematics
1 answer:
Igoryamba3 years ago
7 0

<u>Answer:</u>

<h3>( x ) x ( x + 7 ) </h3>

<u>Step-by-step explanation:</u>

To find the area of a rectangle, we have to multiply the length with the width.

In the question, the given length is 'x' and the width given is 'x +7'

So, the area would be

( x ) x ( x + 7 )

The area = x^{2} + 7x

So, the equation to find the area of such a rectangle would be:-

( x ) x ( x + 7 )

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In a journey of 15 miles, two third distance was travelled with 40 mph and remaining with 60 mph. How much time does the journey
Ad libitum [116K]

The first step in solving this question is to split the journey into 2 parts. In the first part of the journey, \frac{2}{3} \times 15 = 10 miles are covered at a speed of 40 mph. In the second part the journey 5 miles are covered at a speed of 60 mph.

The equation to compute the time of a journey  given the speed and distance is t=\frac{d}{s} where t is the time, s is the speed and d is the distance.

The time for the first part of the journey is calculated as shown below,

t=\frac{d}{t} \\t=\frac{10m}{40mph} =\frac{10}{40} h.

The time for the second part of the journey is calculated as follows,

t=\frac{d}{t} \\t=\frac{5m}{60mph} =\frac{5}{60} h.

The total time is the sum of the times taken to cover each part of the journey and is calculated as shown below,

t=\frac{10}{40} h+\frac{5}{60} =\frac{30+10}{120} h=\frac{40}{120}h =\frac{1}{3} h

The time to cover the journey is a third of an hour or 20 minutes.

5 0
3 years ago
What is the answer to 10 = 7 - m?
Artist 52 [7]

Answer:

-3

Step-by-step explanation:

you subtract the 7 on both sides and divide by -1 because it has a - on the m

7 0
3 years ago
Read 2 more answers
Braden walked 6 miles south, then he walked 10 miles east, after that he walked 2 miles south. How many miles is it back to the
BlackZzzverrR [31]
He would be 8 miles south and 10 miles east from the original location. In total, 18 miles southeast
3 0
3 years ago
There are 40Student in a class. If the number of boys is 4less than the number of girls.find the number of boys.​
svp [43]

Answer:

18

Step-by-step explanation:

Let number of girls be 'x'.

So, Number of boys = Number of girls - 4

= x - 4

Total number of students in a class = 40

Number of girls + Number of boys = Total number of students in a class

\longrightarrow x + x - 4 = 40

\longrightarrow 2x - 4 = 40

\longrightarrow 2x - 4 + 4 = 40 + 4

\longrightarrow 2x = 44

\longrightarrow \sf \dfrac{2x}{2} = \dfrac{44}{2}

\longrightarrow x = 22

\therefore Number of boys = 22 - 4

= 18

3 0
3 years ago
I need answers from my students homework practice
saveliy_v [14]
There isnt any details so idk how to help you sorry
6 0
3 years ago
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