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kicyunya [14]
3 years ago
10

Half of a number when added to 42 becomes 50. What is the original number?

Mathematics
2 answers:
aev [14]3 years ago
3 0

Answer:

16

Step-by-step explanation:

50-42=8

8 times 2 is 16

Anna71 [15]3 years ago
3 0

Answer:

16

Step-by-step explanation:

42+8=50 then you double that number and 8x2 is 16 therefore the number must be 16

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In spherical geometry, all points are points on the surface of a sphere. A line is a circle on the sphere whose diameter is equa
mamaluj [8]

Answer: It is not possible that two triangles that are similar and not congruent in spherical geometry.

Step-by-step explanation:

For instance, taking a circle on the sphere whose diameter is equal to the diameter of the sphere and inside is an equilateral triangle, because the sphere is perfect, if we draw a circle (longitudinal or latitudinal lines) to form a circle encompassing an equally shaped triangle at different points of the sphere will definately yield equal size.

in other words, triangles formed in a sphere must be congruent and also similar meaning having the same shape and must definately have the same size.

Therefore, it is not possible for two triangles in a sphere that are similar but not congruent.

Two triangles in sphere that are similar must be congruent.

8 0
3 years ago
Melinda rode her bike 54/100 mile to the library. Then she rode 4/10 mile to the store. How far did Melinda ride her bike in all
weqwewe [10]
0.94 
...............

hope this helps
3 0
3 years ago
Read 2 more answers
Show your work please.
Kruka [31]

Answer:

Tauren has 78 keychains

James has 34 keychains

Marcus has 68 keychains

Yahya has 74 keychains

Step-by-step explanation:

I got this answer by doing this:

If Tauren has 78 keychains then its gonna be left like that.

If everybody else has an average of 68 keychains then divide 68 by 2 to get half of what marcus has which equals 34.

Then add the amount of James and marcus keychains which is 68 plus 34 which equals 102, the subtract the 28 because it says Yayha has 28 fewer keychains and that equals 74.

3 0
3 years ago
A parent is buying two types of chocolate truffles for the children. The oldest child likes white chocolate (W), the younger two
valkas [14]

Answer:

Each dark chocolate tuffle was $6.

Step-by-step explanation:

This question can be solved by a system of equations.

Four white chocolate truffles (W) cost the same as three dark chocolate truffles (D).

So 4W = 3D

The parent bought 3 white chocolate truffles(W) and 6 dark chocolate truffles (D), and spent $49.50.

3W + 6D = 49.50

4W = 3D

So

D = \frac{4W}{3}

3W + 6D = 49.50

3W + 8W = 49.50

11W = 49.5

W = 4.5

D = \frac{4W}{3} = \frac{4*4.5}{3} = 6

Each dark chocolate tuffle was $6.

6 0
3 years ago
Read 2 more answers
Instructions
Gnoma [55]
Lets just choose the first one, 3 4 and 5. According to the Pythagorean Theorem,
a^2+b^2=c^2

So lets plug in our numbers.

3^2+4^2=c^2

The answer should be 5, but lets make sure.

3*3 = 9
4*4 = 16
9+16=c^2
25 = c^2
Square root both sides so:
5=c
And sure enough 5 is the last number on that list. The order doesn’t matter as long as the value you are trying to find is the c^2.
7 0
3 years ago
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