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2 years ago

LALLY MANLLITYONLILULIVE

Mathematics

1 answer:

uysha [10]2 years ago

5 0

B 9x+10, this is because you just simply combine like terms

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Solve the system of equations by substitution. -5x + y = 3 7.5x - 1.5y = 3

Sonbull [250]

Multiple the first equation by 1.5 and solve the equation then

7 0

2 years ago

Nelly works part-time in a shop to

zaharov [31]

Using proportions, Nelly's total pay for last week was of £220.

<h3>What is a proportion?</h3>

A proportion is a fraction of a total amount, and the measures are related using a rule of three. Due to this, relations between variables, either direct or inverse proportional, can be built to find the desired measures in the problem.

From Monday to Friday, she worked 17 hours, hence:

For 15 hours, she was paid £8 per hour.

For the last 2 hours, she was paid £10 per hour.

On Saturday, she worked 5 hours, and was paid £16 per hour.

Hence her total payment is found as follows:

15 x 8 + 2 x 10 + 5 x 16 = £220.

More can be learned about proportions at brainly.com/question/24372153

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3 0

1 year ago

When Mary and jack bought their house,their property taxes were $2650 annually. After 8years, their property taxes are now $5035

Morgarella [4.7K]

Please find the attached file of solution

8 0

2 years ago

What’s the combined average of Altuve’s weighted average below:

Fynjy0 [20]

Answer:

The combined average of Altuve's weighted averages is 1 for 2 or 1/2

Step-by-step explanation:

Combined Average

On Friday, Altuve had 3 out of 5 successes

On Saturday, Altuve had 2 out of 4 successes

On Friday, Altuve had 1 out of 3 successes

The total successes are 3+2+1=6

The total tries are 5+4+3=12

The combined average is:

$\displaystyle \bar x=\frac{6}{12}$

Simplifying:

$\displaystyle \bar x=\frac{1}{2}$

The combined average of Altuve's weighted averages is 1 for 2 or 1/2

7 0

2 years ago

James has just sold his motorbike for £1,890. He bought the motorbike for £2,700. What was his percentage loss? %

Usimov [2.4K]

£2.700 - £1890 = £810

£ (money) -------------- percentage (%)
2.700 -------------------- 100
810 ----------------------- x

2700*x = 810*100
2700x = 81000
$x = \frac{81000}{2700}$
$\boxed{x = 30}$

Answer:
Percentage loss = 30%

6 0

2 years ago