1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
irinina [24]
3 years ago
5

I need help with this please

Mathematics
1 answer:
Vitek1552 [10]3 years ago
7 0
The answer to 8a. is 17, the answer to 8b. is 3.9, the answer to 8c. is 1 / 2, the answer to 8d. is 7 7 / 8, the answer to 9a. is commutative property, the answer to 9b. is multiplicative identity property, the answer to 9c. is associative property, and the answer to 9d. is additive inverse property.

Regarding the whole "explain using mental math" thing, I pretty much just used the fact that 8a. and 8b. both had the same number of decimal places. For 8c., I just made each number have a denominator of 10. And last, for 8d., all of the denominators were already the same, which made it pretty easy. I apologize for this section of my answer being so informal lol, I haven't had to do these kinds of problems in like 5 years <span />
You might be interested in
Find an equation of the line that passes through the points (3,-2) and (-7,6).
Ulleksa [173]

Answer:

y = -4/5x + 2/5

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Help me now i dont know
denis23 [38]

Answer:

-2 is Greater than -4

Step-by-step explanation:

-4 is more Negative, therefore it’s considered as Less than -2.

If u Consider the Number Line,

negative numbers(Left), 0, Positive Numbers(right)

The number on the right side is more greater than on the Left

-2 is greater because it’s nearer positive values

Therefore -2 is Greater than -4

5 0
2 years ago
Read 2 more answers
When born, a baby weighed 8.5 pounds and gained 1.6 pounds per week for the first 10
ladessa [460]

Answer:

I believe the answer is C

Step-by-step explanation:

if the baby weighted 8.5 pounds when born then that is the initial value therefore the baby will be weighted 1.6 times 10 weeks or w

hope this helps

5 0
3 years ago
<img src="https://tex.z-dn.net/?f=%5Clongmapsto%5Csf%2010%5Ctimes%2010%5Ctimes%2011" id="TexFormula1" title="\longmapsto\sf 10\t
kvv77 [185]

Answer:

100 × 11

1100

Step-by-step explanation:

brainliest plz

3 0
3 years ago
Read 2 more answers
ANSWER THIS USING INVERSE OPERATIONS AND PROVIDE TH STEPS
Airida [17]

Answer:

x = 12

Step-by-step explanation:

5+x2 = 2x2+13

5+x2 = 4+13

5+x2÷2 = 17

5-5+x = 17-5

x = 12

5 0
3 years ago
Read 2 more answers
Other questions:
  • Aramis showed the division of 6p2 + 9p + 3 by 3p.
    7·2 answers
  • Which equation is NOT true?
    10·1 answer
  • Adam and Ian go to the movie theater and purchase refreshments for their friends. Adam spends a total of $62.75 on 2 drinks and
    7·2 answers
  • 15.57 divided by 0.3
    9·2 answers
  • 0.092 -0.12s +0.04 = 0​
    8·1 answer
  • 4n + 3 &lt; 6n + 8 - 2n<br><br> Pls solve in steps
    6·1 answer
  • Expand and simplify 2(p + 2q – 3).
    13·1 answer
  • The expression x−y equals 0.7 if x and y have certain values. Evaluate the following expressions with the same values of x and y
    13·2 answers
  • Plllsss help!!! <br>What is the value of x?​
    10·2 answers
  • Please help!! Express the function graphed on the axes below as a piecewise function.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!