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madam [21]
2 years ago
13

Please help me with this

Mathematics
2 answers:
Ber [7]2 years ago
5 0

Answer:

  • - 21/10 or  - 2.1

Step-by-step explanation:

  • - 9/6 + (- 3/5) =
  • - 3/2 + ( - 3/5) =
  • - (15/10 + 6 / 10) =
  • - 21/10
sammy [17]2 years ago
4 0

Answer:

\displaystyle{ -  \frac{9}{6} + ( -  \frac{3}{5} ) }

\displaystyle{ -  \frac{9}{6} -  \frac{3}{5}  }

  • Multiply the numerator and denominator to make it equivalent:

\displaystyle{ =  -  \frac{9}{6}  =  -  \frac{9 \times 5}{6 \times 5}  =  -  \frac{45}{30} }

\displaystyle{ =  \frac{3}{5}  =  \frac{3 \times 6}{5 \times 6}  =  \frac{18}{30} }

So,

\displaystyle{ =  -  \frac{45}{30}   -  \frac{18}{30}  = -   \frac{45 - 18}{30} =  -  \frac{37}{30}  }

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Plz help need step by step
Ratling [72]

Answer: X would equal -8

Step-by-step explanation: Starting off, you would cross multiply, so 414 times 1 = (x-10) times -23. It's similar to the one I answered before, just with different numbers. 414 = -23 (x-10). After that, distribute to get: 414 = -23x +230. Then subtract 230 from both sides and divide by -23 to get x. Hope that helps.

8 0
3 years ago
Kenneth signed up to receive Internet service for $13 per month plus a $30 start-up fee. Which equation could be used to find th
almond37 [142]

The equation 13x+30=134 can be used to find the number of months Kenneth can receive internet service.

Step-by-step explanation:

Given,

Start up fee to receive internet = $30

Per month charges = $13

Total amount = $134

Let,

x be the number of months.

y be the total cost.

y = 13x+30

Putting y=134

134=13x+30\\13x+30=134

The equation 13x+30=134 can be used to find the number of months Kenneth can receive internet service.

Keywords: equation, addition

Learn more about addition at:

  • brainly.com/question/1836777
  • brainly.com/question/1993757

#LearnwithBrainly

8 0
4 years ago
You earn $8.50 per hour. How many hours will it take you to earn $1,088.00?
kicyunya [14]

Answer:

the answer is exactly 128 hours.

6 0
3 years ago
Read 2 more answers
Find the distance between the points (8,10) and (4,7)
r-ruslan [8.4K]

Answer: 7 is the distance in between the points

Step-by-step explanation: How you find the distance between points is pretty simple once you know how to do it!

So first take your X coordinate take the first one (8) and subtract it from the second one (4) 8-4=4 so now we have 4 put that aside for a moment,

Now take your Y coordinate subtract the first one (10) from the second one (7), 10-7=3

Finally add the 3 and 4 together you get 7 that is why 7 is the distance in between the points

If you need further help or instruction please let me know!

7 0
4 years ago
Alex claims that the product of x^2 and x^4+x^2-1 will be x^8+x^4-x^2. explain the error made by alex
Alekssandra [29.7K]

Answer:

Step-by-step explanation:

the product is a result of multiplication....so lets multiply

x^2 (x^4 + x^2 - 1) =

x^6 + x^4 - x^2

ok...his mistakes are occurring because he is multiplying the exponents when he is supposed to be adding them.

exponent rule : x^a * x^b = x^(a + b)

5 0
3 years ago
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