Plz help I don’t get it

Mathematics

1 answer:

nikklg [1K]2 years ago

4 0

To figure out the cost per cookie, divide $2.49 by 3. The cost per 1 cookie (column 1) would be .83 cents.

To figure out the cost of 20 cookies, multiply 20 x .83 cents. The answer is 20 cookies would cost $16.60

To figure out how many cookies would cost $145,25, divide $145.25 by .83 cents. The answer is 175 cookies would cost $145.25

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120 times 1.75 show your work plz help me I really dont get it

sineoko [7]

120 * 1.75 = 200

5 times 0 = 0

5 times 2 = 10 carry the 1

5 times 1 = 5 + 1 = 6

7 times 0 = 0

7 times 2 = 14 carry the 1...

7 times 1 = 7 + 1 = 8
1 times 0 = 0
1 times 2 = 2
1 times 1 = 1
add it all together and you get 200.

6 0

2 years ago

Given the points (-4,8)and(6,-12)

MissTica

Answer:

$midpoint = ( \frac{ - 4 + 6}{2} , \: \frac{ - 12 + 8}{2} ) \\ = (1, \: - 2)$

$distance = \sqrt{ {( - 4 - 6)}^{2} + {( - 12 - 8)}^{2} } \\ = \sqrt{500} \\ = 22.4 \: units$

3 0

2 years ago

Simplify:- for y.<br><br> 2x + 3 y/4 = 5

Fudgin [204]

2x + 3y/4 = 5....multiply everything by 4
8x + 3y = 20
3y = -8x + 20
y = -8/3x + 20/3 or y = (-8x + 20) / 3

3 0

3 years ago

John can ride his skateboard 100 feet in 4.6 seconds. How fast is this in miles per

cricket20 [7]

Answer:

about .24 mile per hour

1 mile is 5280 foot

Step-by-step explanation:

5 0

2 years ago

Which expression is equivalent to (7-8) (78)?

Gre4nikov [31]

-78

Step-by-step explanation:

(7-8)(78)

(-1)(78)=-78

8 0

2 years ago