All categories

3 years ago

5(2x + 1) = 35 solve

Mathematics

1 answer:

vichka [17]3 years ago

6 0

Answer:

Step-by-step explanation:

5(2x + 1) = 35

10x + 5 = 35

10x = 30

x = 3

You might be interested in

The product of these slopes is ______.This product shows that the slopes are negative reciprocals. It is given that the lines ar

Arturiano [62]

Answer:

- 1

Step-by-step explanation:

Let the slope of one line be 's' , then according to the given condition that the slope of second line is negative reciprocal of the first , We obtain the slope of the second line as $\frac{-1}{s}$ .

So, the product of both the slopes is given by $s\cdot \frac{-1}{s}=-1$

This shows that whatever the slopes may be if they are negative reciprocal of each other then their product will always be -1

6 0

3 years ago

K<br> The solution is k<br> K/6+5=17<br> The solution is k=

aleksklad [387]

k=72

Explanation:

72/6=12

12+5=17

3 0

2 years ago

Read 2 more answers

A rectangular pool is to be built on a lot that measures 20 m by 12 m. A wooden deck of uniform width, equal to the area of the

frutty [35]

The length and breadth(width) of the pool are

$l\approx15.7m\text{ and }b\approx7.7m$

Let

$l=\text{length of the side of the pool}\\b=\text{breadth of the pool side}\\w=\text{the width of the strip of deck surrounding the pool}$

From the question, we can build the following relationships

$l+2w=20\\b+2w=12$

subtracting to eliminate $w$ (we do not even need it!)

$l-b=8\\b=l-8$

we can also build another relationship from the question. Since the area of the strip equals the area of the pool:

$lb+lb=2lb=20\times 12\\lb=120$

We have two unknowns, $l$ and $b$ . Eliminate $b$

$lb=120\\l(l-8)=120\\l^2-8l-120=0$

If we solve the quadratic equation for $l$ , we get

$l=4+2\sqrt{34}\approx 15.7m$

and

$b=l-8\\b=(4+2\sqrt{34})-8\\b=2\sqrt{34}-4\approx7.7m$

The length and breadth(width) of the pool are

$l\approx15.7m\text{ and }b\approx7.7m$

Learn more about area here: brainly.com/question/1447350

7 0

2 years ago

A family of 2 adults and 3 children went on holiday to Miami.

oksano4ka [1.4K]

Answer:

£175

Step-by-step explanation:

Given the exchange rate was £1 = 1.84 dollars.

We are to change 322 dollars to pounds (£).

£1 = 1.84 dollars.

x = 322 dollars

Cross multiply

1.84 * x = 322

1.84x = 322

x = 322/1.84

x = 175

Hence 322 dollars in pounds will be £175

3 0

4 years ago

Last week, Sarah worked for 13 hours at her part time job. If she earned $143.00 for the week, how much did she earn per hour?

bezimeni [28]

Answer:

11 dollars an hour.

Step-by-step explanation:

143/13=11

8 0

3 years ago