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Aleks [24]
2 years ago
9

Mr. Haney has 11 coins in dimes and quarters. The value of his coins is $2.15. how many dimes does he have?

Mathematics
1 answer:
Anna11 [10]2 years ago
4 0

Answer:

4 dimes

Step-by-step explanation:

d+q=11  

10d+25q=215

15d=11(25)-215=60

d=60/15=4

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Look at the following expression and tile model. White tiles are positive and gray tiles are negative.
Dovator [93]

Answer:

5

Step-by-step explanation:

8 0
2 years ago
I dont understand can someone help?
nalin [4]
First you need to find area of square which is side x side which is 8x8 which is 64. Then you find the side of the triangle which is 14-8 which is 6 then you need to find the height of the dotted line I’m pretty sure there’s a formula but it looks like it’s 8 because it looks like a square so then the formula of a triangle is base times height divided by two so the base is 6 and height is 8 so 6x8 which is 48 and divided by two is 24 then you add the area of the triangle and the area of the square which is 64 so 64+24 which is 88 so I’m pretty sure the area is 88 then just put whatever units after :)
3 0
2 years ago
If Q = 1, what is the value of the expression 73 - 20q?
Digiron [165]

Answer:

53

Step-by-step explanation:

73 - 20(1)

73 - 20 = 53

3 0
2 years ago
Y = x^2+ 7x - 5 can be written in the form y = (x + a)^2+b
BARSIC [14]

Answer:

see explanation

Step-by-step explanation:

The equation of a parabola in vertex form is

y = (x - h)² + k (h, k) are the coordinates of the vertex

Given y = x² + 7x - 5

To express in vertex form use the method of completing the square

add/subtract ( half the coefficient of the x- term )²

y = x² + 2( \frac{7}{2} )x +\frac{49}{4} - \frac{49}{4} - 5

y = (x + \frac{7}{2} )² - \frac{49}{4} - \frac{20}{4}

y = (x + \frac{7}{2} )² - \frac{69}{4}

Hence

a = \frac{7}{2} and b = - \frac{69}{4}

8 0
2 years ago
What value is equivalent to 52 + 53 − 54? A) -475 B) -350 C) -125 D) 5
Dafna1 [17]

None of these answer choices are correct. The answer would be 51. 52+53=105

105-54=51

7 0
3 years ago
Read 2 more answers
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