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Ierofanga [76]
3 years ago
5

the weight of a nickel is 80% of the weight of a quarter.if a nickel weighs 5grams how much does a quarter weigh?

Mathematics
1 answer:
Rasek [7]3 years ago
8 0
Just divide 100% by 80% and multiply that answer by 5. I'm pretty sure that's how you do it.
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Please please help me
OLga [1]

Answer:

(x - 5)² + (y + 3)² = 16

Step-by-step explanation:

The equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k) are the coordinates of the centre and r is the radius

here (h, k) = (5, - 3) and r = 4, thus

(x - 5)² + (y - (- 3))² = 4², that is

(x - 5)² + (y + 3)² = 16 ← equation of circle

4 0
3 years ago
What are the solutions to x2 + 8x + 7 = 0? A. x = –8 and x = –7 B. x = –7 and x = –1 C. x = 1 and x = 7 D. x = 7 and x = 8
NikAS [45]

Answer:

x= -7      x = -1

Step-by-step explanation:

x^2 + 8x + 7 = 0

Factor

What 2 numbers multiply to 7 and add to 8

7*1 = 7

7+1 = 8

(x+7)(x+1) =0

Using the zero product property

x+7 =0   x+1 = 0

x= -7      x = -1

8 0
3 years ago
Read 2 more answers
F(x) = -x2 – 9.2 – 4
drek231 [11]

Answer:

what is the question?

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
What is the slope of the line y=2x+5?​
sweet [91]
Answer:

The slope is 2

Explanation:

The equation is written in y=mx+b
M would always be the slope and b the y intercept

Hope this helps!!
4 0
2 years ago
Read 2 more answers
Pls help ASAP!! Soon it’s urgent
melisa1 [442]

question 5 a

question 6 c

question 7 b

8 0
3 years ago
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