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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 />
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Department stores customer parking lot has four rows with an equal number of parking spots in each row. The loud also has 15 par
Katen [24]

Answer:

4c + 15

Step-by-step explanation:

THIS IS THE COMPLETE QUESTION BELOW;

A department store's customer parking lot has 4 rows with an equal number of parking spots in each row. The lot also has 15 parking spots for store employees. If c cars can be parked in each of the 4 main rows of the parking lot, what is the expression for the maximum number of cars that can be parked in the parking lot?

15c − 4

c(15 − 4)

4c + 15

4(c + 15)

✓We were told that the customer stores parking has Total number of 4 rows,

✓ for " c" cars to be parked in the 4 main rows i.e in each of them, we can calculate the overall numbers of car parked in the rolls as ( 4 × c)= 4c

✓ we were told that there are 15 parking spots available to employees in the store

✓ maximum number of cars that can fit into the parking lot will be ( 15 + 4c)

= 4c + 15

3 0
2 years ago
157×23 show work pls​
Sergeeva-Olga [200]

Step-by-step explanation:

  • 157×23
  • 3611

hope it helps

<h3>stay safe healthy and happy.</h3>
8 0
3 years ago
Read 2 more answers
Janalyn Cooper's gross weekly pay is $798. Her earnings to date for the year total $11,970.
myrzilka [38]

Answer:

$2000 I hope it's helpful for you

8 0
3 years ago
I need help please and fast
patriot [66]

Answer:

20%

Step-by-step explanation:

The reason it is 20% is due to the fact that if you put it in a form showing 250/250 = 100/100 and put another proportional rate underneath it showing 200/250 = x/100, you would have to multiply the numerator of the fraction on the left by the denominator of the fraction on the right to get 20000. Now you divide 250 from 20000 and get x for 80, resulting in 80/100 or 80%. All you have to do now is subtract 100-80, which equals 20, resulting in 20%.

Hope that helps!! It's my first time in answering so, ya. ;D goodluck!

3 0
3 years ago
Read 2 more answers
Rewrite as a simplified fraction.<br> 2.267....=?
Ugo [173]

Answer:

2267/1000

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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