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hammer [34]
3 years ago
14

-5/8+(-8/5)= i do not understand how to solve this

Mathematics
1 answer:
nika2105 [10]3 years ago
8 0

Answer:

first find a LCM or least common multiple

-25/40+(-64/40)=

add the numerators or top number

-88/40

then you simplify it

-2 8/40

-2 1/5

I hope this is good enough:

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At 2:00pm a car's speedometer reads 20mph, and at 2:10pm it reads 30mph.
Dmitry [639]

Over this 10-minute interval, the car's average acceleration is

\dfrac{30\,\mathrm{mph}-20\,\mathrm{mph}}{10\,\mathrm{min}}=\dfrac{10\,\mathrm{mph}}{\frac16\,\mathrm h}=60\dfrac{\rm mi}{\mathrm h^2}

The MVT says that at some point during this 10-minute interval, the car must have had an acceleration of 60 mi/h^2.

6 0
4 years ago
25 is how much more than 20? what percent more?
Firdavs [7]
25 is 5 more than 20 which is 25% more since 5/20 = 1/4 = 25%
To check (1.25 * 20 = 25)
7 0
4 years ago
Read 2 more answers
How many pairs of whole numbers have a sum of 40
Ahat [919]
It is 20 
39+1
38+2
37+3
36+4
35+5
<span>Until you get to 20+20</span>
3 0
3 years ago
For Sunday brunch, Kayli is making a recipe that requires 8 cups of milk. She has 3 quarts of milk. Does she have enough for the
Dovator [93]

Answer:

yes she has more than enough

Step-by-step explanation:

1 quart = 4 cups

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3 quarts = 12 cups

3 0
3 years ago
The quadrilateral shown is a parallelogram. If m∠ADC = 125° and m∠1 = 30°, what is m∠2? A) 15° B) 25° C) 35° D) 55°
Ganezh [65]

Answer:

B) 25°

Step-by-step explanation:

Assuming the quadrilateral is the one shown in the picture attached, then a triangle ADC is form, where m∠ADC = 125° and m∠1 = 30°. The addition of the three angles of a triangle is equal to 180°, so:

m∠ADC + m∠1 + m∠2 = 180°

Replacing with the known values and isolating m∠2 we get:

125° + 30° + m∠2 = 180°

m∠2 = 180° - 125° - 30°

m∠2 = 25°

3 0
4 years ago
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