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makvit [3.9K]
2 years ago
13

Whats 1-2x+3y for x=-2 and y=-5 ?​

Mathematics
1 answer:
lawyer [7]2 years ago
5 0

Answer:

-10

Step-by-step explanation:

2*-2=-4

3*-5=-15

1-(-4)+(-15)=-10

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How can you find the whole when you know part and the percent.
Usimov [2.4K]

An example should make this clear.

If  $50  is 40%   what is the value of the whole amount?

Answer:-  Whole amount = 100^%

By proportion this =  (100/ 40) * 50

= 2.5 * 50

= $125    (answer)


4 0
3 years ago
This is what i need help with thanks​
lawyer [7]
B
Hope this helped you
7 0
3 years ago
Read 2 more answers
Find a linear equation to model this real-world application:
SSSSS [86.1K]

The linear equation to model the company's monthly expenses is y = 2.5x + 3650

<em><u>Solution:</u></em>

Let "x" be the units produced in a month

It costs ABC electronics company $2.50 per unit to produce a part used in a popular brand of desktop computers.

Cost per unit = $ 2.50

The company has monthly operating expenses of $350 for utilities and $3300 for salaries

We have to write the linear equation

The linear equation to model the company's monthly expenses in the form of:

y = mx + b

Cost per unit = $ 2.50

Monthly Expenses = $ 350 for utilities and $ 3300 for salaries

Let "y" be the total monthly expenses per month

Then,

Total expenses = Cost per unit(number of units) + Monthly Expenses

y = 2.50(x) + 350 + 3300\\\\y = 2.5x + 3650

Thus the linear equation to model the company's monthly expenses is y = 2.5x + 3650

3 0
2 years ago
Bob is buying the soccer team snacks after their game today. 8 players want cookies and 5 players want ice cream cones. If ice c
kotykmax [81]

Answer:

$20.25

Step-by-step explanation:

8*1.75=x

x=14

5*1.25= y

y=6.25

x+y=20.25

3 0
2 years ago
Simon goes into a cafe and buys 2 cups of coffee and a piece of cake.
Art [367]

Answer:

1.59 change

Step-by-step explanation:

2.78*2=5.56

5.56+2.85=8.41

10.00-8.41=1.59

Pls Mark As Brainliest

6 0
3 years ago
Read 2 more answers
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