What is the opposite of the rational number -7.8

Answers

Answer 1

Answer: The opposite of the number -7.8 is 7.8

Answer 2

Answer: Opposite numbers are the numbers with the same magnitude but different signs. so the opposite of the -7.8 is 7.8 :)))
i hope this is helpful
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How do you simplify 16/44

To increase and amount by 17.5 which single multiplier would you use?

Answers

I suppose that the question is 17.5 %.

To increase an amount by a percentage, the multiplier is given by (100 + %)/100

Therefore, to increase an amount by 17.5%,
the single multiplier is given by (100 + 17.5)/100 = 117.5/100 = 1.175

10 POINTS! Please help me on the attached file!

Answers

Your answer is correct because 4.2 is half of 8.4 so 4.6 is double of 2.3.

the answer is 4.6, the scale factor for the figure is 2. 2.3 times 2 is 4.6

3(3t + s) and 3s - t S = 9 and t =12

Answers

the answer is 108+3s i think but not 100% sure

3(3(12)+9)
3(36+9)
3(45)
165

3(9)-12
27-12
15

the total cost of 3 tables & 2 chairs is rs 1850 ...if a table RS 75 more than a chair ,find the price of each ?

Answers

• We have the enunciation, now we can solve.
♦ We note :
- t, the price of the table;
-c, the price of a chair:

3t+2c=1850 }
t=c+75 } =>

=> 3(c+75) +2c=1850
3c+225+2c=1850
5c=1850-225
5c=1625
c=1625:5
c=341=> t=341+75 = 476 .

18 is 45% of what numbet

Answers

Part/Whole=Percent/100
Part=18
Percent=45
Whole= a variable that we are trying to figure out
so now its 18/x=45/100
Cross multiply and get
45x=1800
Divide by 45 and get 40. 18 is 45%of 40

The number that 18 is 45% of 40.

To find the number that 18 is 45% of, we can set up the following equation:

we can set up the following equation:

Given number is 18 and the percentage is 45%

18 = 0.45 * x

x=18/0.45

To solve for x, divide both sides of the equation by 0.45:

To solve for x, divide both sides of the equation by 0.45:

x = 18 / 0.45

x=40

By future Performing the calculation:

x = 40