1. Calculati! ( Va rog ajutati-ma! )

1 answer:

8 0

1. 7+ (-9) = 7-9=-2
2.(-8) + (+5)= -8+5= -(8-5)=-3
3.(+9) - (-3) = 9+3=12
4.(+12) - (-1) = 12+1=13
5. (-7) - (-5) = -7+5==(7-5)=-2
(-14) - (+2) = -14-2=-(14+2)=-16

You might be interested in

What is the quotient? The problem has been started for you.

ad-work [718]

Answer:89.6 (with line)

7 0

4 years ago

Read 2 more answers

Which expression is equivalent to n+n+n? A. 3^n B. 3n C. n^3 D. n+3

Irina18 [472]

Answer:

B. 3n

Step-by-step explanation:

n + n + n = 3n

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

3n = n + n + n

#IhopeThisHelp

5 0

2 years ago

What is 20% of 20 ?

Mariana [72]

The answer is 4.

The easiest way to determine the value of statements like this is to turn the percentage into a decimal and then multiply.

20% * 20

.20 * 20

6 0

4 years ago

Read 2 more answers

Sandra has a $20 itunes gift card and spends $3 each month. Which of the following functions models how much money Sandra has on

SCORPION-xisa [38]

Answer:

x3-20

Step-by-step explanation:

x stands for the month 3 is the money that she is spending each month if you multiply those together you get the amount of money she has spent over x amount of months minus the 20 dollars on her gift card

8 0

3 years ago

What is the value of x?

Alexus [3.1K]

Answer:

x = 22.5

Step-by-step explanation:

$\frac{BH}{DH} = \frac{HM}{HT} \\ \frac{6}{15 + 6} = \frac{9}{9 + x} \\ \frac{6}{21} = \frac{9}{9 + x} \\ 6(9 + x) = 9 \times 21 \\ 54 + 6x = 189 \\ 6x = 189 - 54 \\ 6x = 135 \\ x = \frac{135}{6} \\ x = 22.5$

5 0

3 years ago