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MrRa [10]
3 years ago
12

Whats the answer worth 20 points

Mathematics
2 answers:
DanielleElmas [232]3 years ago
4 0

Answer:

-2

Step-by-step explanation:

mote1985 [20]3 years ago
3 0

Answer:

-2

Step-by-step explanation:

-15x times -2 equals 30

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Find a degree
natta225 [31]

Answer:

755757

Step-by-step explanation:

6 0
3 years ago
What is the LCD of 1/2 and 3/5
bagirrra123 [75]

Answer:

10

Step-by-step explanation:

How you find LCD (lowest common denominator) is that you have to look at the denominator (the bottom number) and try to find the lowest multiple between both of the numbers that is on the bottom (in this case it is 2 and 5). Sometimes you have to multiply both denominators together to get a LCD.

Example of multiplying two denominators together to get an LCD:

1/3 and 1/13 LCD is 39 because you multiply 3 and 13.

1/5 and 1/4 LCD is 20 because you multiply 5 and 4.

8 0
3 years ago
A cylinder has a radius of 40 ft and a height of 17 ft. What is the exact surface area of the cylinder?
Georgia [21]

we know that

surface area of the cylinder=2*{area of the base}+perimeter of base*height

area of the base=pi*r²

r=40 ft

Area of base=pi*40²

Area of the base=1600*pi ft²


Perimeter of the base=2*pi*r

Perimeter of the base=2*pi*40

Perimeter of the base=80*pi ft


surface area of the cylinder=2*1600*pi+80*pi*17

surface area=4560*pi ft²


therefore

the answer is the option

4560π ft2

8 0
3 years ago
Read 2 more answers
A box is filled with 5 blue cards, 6 yellow cards, and 3 brown cards. A card is chosen at random from the box. What is the proba
mars1129 [50]

4/7 of a chance.  There are a total of 14 cars.  6 are yellow.  8 are not.  8/14 of the cards are not yellow.  8/14 simplifyed= 4/7.

4 0
3 years ago
Read 2 more answers
A gardener is planting two types of trees:Type A is three feet tall and grows at a rate of 15 inches per year.Type B is four fee
Sliva [168]
First, construct two equations.
Then, equal the two equations to each other like this -

x will be the years.

Type A. Type B

3x + 15 = 4x + 10
- 15. - 15

3x = 4x - 5
-4x. -4x

-x = -5
-x/-1 = -5/-1
x = 5

Check:

3(5) + 15 = 4(5) + 10
15 + 15 = 20 + 10
30 = 30

Therefore, the trees will be the same height in 5 years.
7 0
3 years ago
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