All categories

2 years ago

If the denominator of 5/7 is increased by a number and the numerator is doubled, the result is 1. Find the number.

Mathematics

1 answer:

iren2701 [21]2 years ago

6 0

Answer:

Step-by-step explanation:

let n be the number, then

$\frac{10}{7+n}$ = 1 ← multiply both sides by 7 + n

10 = 7 + n ( subtract 7 from both sides )

3 = n

You might be interested in

Model the function rule y = -2x - 3 with a table of values. Show your work

alexandr402 [8]

Here's a table of the function y=-2x-3

7 0

2 years ago

I need help please...

nekit [7.7K]

Answer: What is the question?

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

Eric noticed that his basil plant grows 5 cm every day. He starts recording the height when the plant is 22 cm tall. He wants to

slava [35]

The answer is B because you multiply 14 days (2 weeks) to 5 which is 70 then you add the other 22cm and that's how you would end up with 92cm

5 0

2 years ago

Jawad has seven rocks.

ad-work [718]

680 grams.

So, it's telling us to calculate the weight, in grams, of the other rock.

So firstly,

6 of the rocks EACH have a weight of 720 grams.

So, 6 x 720 = 4320

Now save 4320 for later.

Next, we need to convert the 5 kilograms into grams.

So, 5 x 1000 = 5000

now do, 5000 - 4320 = 680.

Your final answer would then be = 680g

I hope this helped.

3 0

3 years ago

Combine like terms. 5y - 8 - y

Svetlanka [38]

<h3>Question:-</h3>

Combine like terms. 5y - 8 - y

<h3>Answer:-</h3>

here like terms are 5y,-y
solving like terms
5y-y-8(subtracting 5y-y)
4y-8

hence the combination=

$\bold {4y - 8}$

All the best !

4 0

1 year ago

Read 2 more answers