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ycow [4]
2 years ago
9

Simplify the expression below. 21 - 5² - 49

Mathematics
1 answer:
wariber [46]2 years ago
7 0

Answer:

The positive answer is 3 and the negative one is -53

Step-by-step explanation:

You might be interested in
DETERMINE<br> THE<br> DIFFERENCE<br> BETWEEN-2/5 and -0.75
timama [110]

Answer:

0.3

Step-by-step explanation:

Convert -2/5 into a decimal.

-0.4.

Then subtract the two.

-0.4-(-0.75)

-0.4+(+0.75)

0.3

6 0
3 years ago
The formula for the cost of buying a car is:
Mice21 [21]

Answer:

a) The cost of buying this car is of £6200.

b) The monthly payment is of £450.

Step-by-step explanation:

The cost of buying a car is given by:

cost = 12 X monthly payment + deposit

a) Find the cost of a car when the monthly payment is £350 and the deposit is £2000.

So

cost = 12*350 + 2000 = 4200 + 2000 = 6200

The cost of buying this car is of £6200.

b) The cost of another car is £8000. Find the monthly payment when the deposit is £2600.

Again, the formula is applied. So

cost = 12 X monthly payment + deposit

8000 = 12x + 2600

12x = 5400

x = 5400/12

x = 450

The monthly payment is of £450.

7 0
2 years ago
1 of 3
lara31 [8.8K]

Answer:

a

n

=

2

2

n

−

1

Step-by-step explanation:

hope this helps

3 0
2 years ago
1.95 is 1.5% of what number?
stiks02 [169]

Hello there, to answer your question...

<h2>1.95 is 1.5% of 130.</h2><h2 />

I hope the information I provided has helped.

4 0
3 years ago
Read 2 more answers
Please help if you can! :)
mina [271]

9514 1404 393

Answer:

  A. no solution

  B. unique solution: (x, y) = (0, 0)

Step-by-step explanation:

For these problems, you can subtract the second equation from the first to get something of the form ...

  0 = (expression)

The solution of that will tell you the answer.

__

A. (2x +3y) -(2x +3y) = (4) -(9)

  0 = -5 . . . . . . . . no values of x or y will make this true: NO SOLUTION

__

B. (y) -(y) = (6x) -(x)

  0 = 5x

  0 = x . . . . . . divide by the coefficient of x.

  y = x = 0

The unique solution is (x, y) = (0, 0).

5 0
2 years ago
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