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mina [271]
3 years ago
5

matthew has a jar of 368 nickels and imes he has been collecting. The total value of the coins is $28.40. which system of linear

equations and solutions can be used to represent the number of nickels and dimes Matthew has inhis collection
Mathematics
1 answer:
Drupady [299]3 years ago
8 0
28.40 bucks ? are you Sure 
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I Need help. Thanks.
PIT_PIT [208]

Answer:

A

Step-by-step explanation:

-2(5y-5)-3y\leq -7y+22

Expand parentheses:

-10y+10-3y\leq -7y+22

Move all y's to one side and numbers to the other:

-6y\leq 12

Divide both sides by -6. Since you are dividing both sides by a negative number, you need to flip the comparator:

y\geq -2

Hope this helps!

5 0
3 years ago
Read 2 more answers
(1+13)2−29=? <br> ive never been good with fractions and dont understand this
GaryK [48]

Answer:

-1

Step-by-step explanation:

1+13=14

(14)2=28

28-29=-1

8 0
3 years ago
Read 2 more answers
What is the standard deviation of the data set given below?<br> 4,7, 8, 9, 12
larisa [96]

Answer:

I think 7

Step-by-step explanation:

4 , 8 , 9 and 12 has factors.

7 has no factor.

4= 2×2

8= 2×4

9= 3×3

12= 3×4

3 0
4 years ago
What is the equation of the line that passes through (-5,6) and (3,-10)??
Tanzania [10]
The equation is -2x-4. u can use y2-y1/x2-x1.
7 0
3 years ago
A cafe offers senior citizens a 15% discount off its regular price of $8.95 for the dinner buffet.
jonny [76]

a) 75 percent of the regular price is the price for senior citizens.

b) $6.712 is the price for senior citizens.

<u>Step-by-step explanation</u>:

  • The regular price is the 100% = $8.95
  • The offer price for senior citizen = 15% discount from 100%

∴ Percent of the regular price for senior citizens = 100% - 15% = 75%

The price for the senior citizens = 75% of $8.95

⇒ (75/100)\times8.95

⇒ 0.75\times8.95

⇒ 6.712 dollars.

∴ The price for senior citizens = $6.712

7 0
3 years ago
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