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Sliva [168]
2 years ago
9

Find the percent of change. Round to the nearest tenth if necessary: 25 is increased by 80%

Mathematics
1 answer:
AleksAgata [21]2 years ago
6 0

Answer:

45

Step-by-step explanation: Find what 80% of 25 is, you can do this by dividing 25 by 100. Then multiply the output by 80. Add that output to 25 and you should get an answer of 45.

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Yeah I’m not good at this
levacccp [35]

For the given triangle, x = 5.1 cm and y = 6.1 cm.

Step-by-step explanation:  

Step 1:  

In the given triangle, the angle is 50°. It is given that the opposite side has a length of y cm and the adjacent side has a length of y cm.   The hypotenuse of the triangle measures 8 cm.

To determine the length of the opposite side of the triangle, we use the sin of the given angle.  

To determine the length of the adjacent side of the triangle, we use the cos of the given angle.  

sin \theta = \frac{oppositeside}{hypotenuse} , cos \theta = \frac{adjacentside}{hypotenuse}.

Step 2:  

In the given triangle,  

The length of the opposite side = y cm,  

The length of the adjacent side = x cm,  

The length of the hypotenuse = 8 cm,  

The angle of the triangle = 50°.

sin \theta = \frac{oppositeside}{hypotenuse} , sin 50 = \frac{y}{8}.

y = 0.7660 (8) = 6.128.

cos \theta = \frac{adjacentside}{hypotenuse} , cos 50 = \frac{x}{8}.

x = 0.6427 (8) = 5.1416.

So x = 5.1416 cm and y = 6.128 cm. Rounding these off to one decimal place, we get x = 5.1 cm and y = 6.1 cm.

8 0
4 years ago
Can someone tell me how to do this ??
suter [353]

Answer:

See step-by-step

Step-by-step explanation:

A prism is named by the shape of its bases.  That makes this an octagonal prism

The shape of the bases are octagons.

The vertices are all the letters

The lateral edges are all the vertical lines connected by the vertices.  RQ, WN, VM, are all examples.

The rectangles making up the sides are called lateral faces.

The altitudes are the same as the lateral edges.  They all represent the height of the prism.

3 0
3 years ago
Becky has 9 bags of coins. Some of the bags contain 8 gold coins, and the rest contain 6
fredd [130]

Answer:

4 bags of gold coins and 6 bags of gold coins

Step-by-step explanation:

So, Becky has 9 bags of coins

This is basically a "trial and error" equation.

Now, she has 4 bags of 8 gold coins

8×4= 32

So she has 32 gold coins

Now, she has 5 bags of 6 silver coins

5×6=30

So she has 30 silver coins.

So we add these,

30+32= 62

HOPE THIS HELPS!!!

7 0
3 years ago
The value of y varies directly with the value of x. If y = 37, then x = 25. What is the value of y when x = 50. (Will give brain
SIZIF [17.4K]

Answer:

The answer is 74

Step-by-step explanation:

Since 25 increased to 50, it was multiplied by 2. Youd do the same to 37 so it would be 37×2:)

6 0
3 years ago
Given that lines DE and CB are parallel, find the value of x
Katen [24]

Answer: need more details

3 0
3 years ago
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