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Nikitich [7]
3 years ago
5

10 points for each question please show work

Mathematics
1 answer:
adoni [48]3 years ago
8 0
Your gonna give me 10 points either way.
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You have a total of 35 coins, all nickels ($0.05) and quarters ($0.25). The total value is $5.75. Find the number of nickels, n,
ki77a [65]

20 quarters and 15 nickels.

20 x 0.25 = 5

15 x 0.05 = 0.75

5 + 0.75 = $5.75

Hope this helps.

8 0
2 years ago
Find the value of x
Doss [256]

Answer:

x = 40

Step-by-step explanation:

The three angles in a triangle add to 180 degrees

x + 30 + (3x-10) = 180

Combine like terms

4x +20 = 180

Subtract 20 from each side

4x+20-20 = 180-20

4x= 160

Divide each side by 4

4x/4 =160/4

x = 40

8 0
3 years ago
What percent is equivalent to 8/40 ? 8% 20% 25% 40%
Nikitich [7]
First you have to get the number on the right 40 to equal 100 so do 40x2=80- +40x1.5= 100

Then do the same thing to the first number 8 so 8x2=16+8x1.5=20

then you have 20/100 right so then that number over 100 is the percent that you get ^-^ 20%
7 0
2 years ago
Read 2 more answers
Negative seven plus four
gulaghasi [49]

Answer:

-3

Step-by-step explanation:

it like 7-4 but then you change the sign to negative since you chance it earlier.

8 0
3 years ago
Navid had $72 in her savings account.
Fofino [41]

Answer:

9 weeks.

Step-by-step explanation:

First, find how many dollars Navid needs to save.

288-72= 216

Then, divide how much money that is needed by the number of dollars that are saved per week.

216/24= 9

Then tie it up into an equation:

(288-72)/24= x

x=9

7 0
3 years ago
Read 2 more answers
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