3 years ago

HELP PLZZZ!! (No link) .itch

Mathematics

1 answer:

SIZIF [17.4K]3 years ago

4 0

I got an answer of 81.44

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Answer please i will give brainliest

il63 [147K]

Step-by-step explanation:

simply add both equations

x + y = 2

-3x - y = 5

----------------

-2x + 0 = 7

x = -7/2

x + y = 2

-7/2 + y = 2

y = 2 + 7/2 = 4/2 + 7/2 = 11/2

1/2 x + 2y = -13

x - 4y = 8

first multiply the first equating by 2

x + 4y = -26

x - 4y = 8

--------------------

2x + 0 = -18

x = -18/2 = -9

x - 4y = 8

-9 - 4y = 8

-4y = 17

y = -17/4

7 0

3 years ago

Can anyone help solve this for me ASAP. Thanks!

Anuta_ua [19.1K]

Answer:

x = 20

y = 26

Step-by-step explanation:

40 and 2x are vertical angles, so they're equal to each other.

40 = 2x

Divide both sides by 2

x = 20

We see that 40 and 5y + 10 are a linear pair, which means they add up to 180.

5y + 10 + 40 = 180

5y + 50 = 180

5y = 130

y = 26

8 0

3 years ago

Brock and Buzz have 10 friends. Buzz has 2 fewer fiends than Brock. How many friends does Brock have?

Anuta_ua [19.1K]

Buzz has 4 friends and Brock has 6.

The reason being is that Buzz has to have two less friend than Brock has, and yet still both have to add up to ten.

6 0

4 years ago

Read 2 more answers

If the interest on investment is $44 when the interest rate is 5%. find the interest when the rate is 8.4%.

kolezko [41]

The interest at 8.4% is:
$44\times\frac{8.4}{5}=73.92$
The answer is $73.92.

6 0

4 years ago

McKenzie sells textbooks. She receives 7% on her first $1,000 in sales and 15% on the balance of her sales. How much would she e

Alisiya [41]

The commission would be $2095.

Step-by-step explanation:

Given,

Commission on first $1000 = 7%

Amount of commission = 0.07*1000 = $70

Worth of sold items = $14,500

We will subtract $1000 from it.

Balance = 14500-1000 = $13500

Commission on balance = 15% = 0.15

Amount of commission = 0.15*13500

Amount of commission = $2025

Total commission = 70+2025 = $2095

The commission would be $2095.

Keywords: percentage, subtraction

Learn more about subtraction at:

#LearnwithBrainly

3 0

3 years ago