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Paladinen [302]
2 years ago
5

What is the value of the expression below? (4/5+3/5)+3.5x5​

Mathematics
1 answer:
lisov135 [29]2 years ago
7 0

Answer:

18.9

Step-by-step explanation:

Start with parentheses.

4/5 + 3/5 = 7/5

Simplify 7/5, 7/5 = 1 2/5

Next numbers.

3.5 x 5 = 17.5

Add.

17.5 + 1 2/5 = 18.9

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Simplify (1/5k)^2;uiovpvuylc gjlcgj
DENIUS [597]

Answer:

i want points lol

3 0
2 years ago
You visit an amusement park with your family over the summer. Each adult ticket costs $45 and each child ticket costs $32. Let '
Gala2k [10]

Answer:

45a + 32c

Step-by-step explanation:

a tickets at $45 per ticket cost 45a

c tickets at $32 per ticket cost 32c

The total cost is

45a + 32c

5 0
2 years ago
A computer’s hard disk is spinning at 75 revolutions per second. How many degrees does it travel in a second? in a minute?
Lady_Fox [76]

Answer:

27000 degrees

Step-by-step explanation:

a circle is 360 degrees if it spun 75 times then it would be 75 x 360 which is equal to 27000

3 0
2 years ago
The top of a mountain is 2,450 feet above sea level a shipwreck was discover 310 feet below sea level what is the distance betwe
arlik [135]

Answer:

d=2,760\ ft

Step-by-step explanation:

Let

x ----> the height of the top of a mountain above sea level

y ----> the deep of a shipwreck below the sea level

we know that

The sea level represent the height equal to zero

In this problem we have

x=2,450\ ft ---> is positive because is above sea level

y=-310\ ft ---> is negative because is below sea level

To find out the distance between the mountain top and the ship wreck, determine the absolute value of the difference between the two values

d=\left|x-y\right|

substitute the values

d=\left|2,450-(-310)\right|

d=\left|2,450+310\right|

d=\left|2,760\right|

d=2,760\ ft

5 0
2 years ago
Can the measurement from △DEF be determined using only the Law of Cosines? State whether each measurement can be determined usin
quester [9]

9514 1404 393

Answer:

  • ∠D - no
  • ∠E - no
  • DE - yes

Step-by-step explanation:

With a single application of the Law of Cosines, you can only find one of an unknown side or an unknown angle. The other three elements in the 4-variable equation must be specified.

However, a single application of the LoC can be used to find DE. Then, knowing the three sides, either of the unknown angles can be found from an additional application of the LoC.

So, the answer is "it depends." It is yes to all if finding DE first is allowed. It is "no" to the angles if they must be found without finding DE first.

7 0
2 years ago
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