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rodikova [14]
3 years ago
7

Why can you use cross products to solve the proportion StartFraction 18 over 5 EndFraction = StartFraction x over 100 EndFractio

n for x?
because 18 times 100 is equal to 5 times x, which means that x is equal to 36

because 18 times 100 is equal to 5 times x, which means that x is equal to 360

because 18 times x is equal to 5 times 100, which means that x is equal to 36

because 18 times x is equal to 5 times 100, which means that x is equal to 360
Mathematics
2 answers:
Butoxors [25]3 years ago
6 0

Answer:

because 18 times 100 is equal to 5 times x, which means that x is equal to 360

Step-by-step explanation:

18/5=x/100

Cross product

18*100=5*x

1800=5x

x=1800/5

x=360

because 18 times 100 is equal to 5 times x, which means that x is equal to 360

kkurt [141]3 years ago
3 0

Answer:

b

Step-by-step explanation:

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Given the diameter of a circle is 17 1/2cm, find its area (use π = 22/7)​
vladimir2022 [97]

Answer:

240.625 is full value. you can use sigfigs if you need.

Area is (pi)(r)^2 so (22/7)(8.75)^2

half diameter is radius

6 0
3 years ago
What is the domain of the function f(x)= sqrt 9x
Vikentia [17]

Answer:

all positive numbers

Step-by-step explanation:

The domain is all of the possible x coordinates. Since we are doing a square root, the answer can't be negative, so if we are multiplying x by a positive number, x can't be negative. All other numbers would work.

7 0
3 years ago
There are 4 aces and 4 kings in a standard deck of playing cards. you pick one random card at random. What is the probability of
hichkok12 [17]

Answer:2/3

Step-by-step explanation:There are 52 cards in a standard deck: 13 ordinal cards (Ace - 10, Jack, Queen, King) and 4 of them - one to each suit (hearts, diamonds, clubs, spades) and so we have

4

×

13

=

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8 0
2 years ago
What is a number line for 5a + 18 < -27?
Colt1911 [192]

Step-by-step explanation:

5a + 18 <  - 27 \\  \\  \therefore \: 5a  <  - 27 - 18 \\  \\  \therefore \: 5a  <  - 45 \\  \\  \therefore \: a  <   \frac{ - 45}{5}  \\  \\ \therefore \: a  <    - 9

8 0
3 years ago
The equation P = 21 + 2w can be used to find the perimeter of a rectangle. A 1 point rectangular shaped playground is enclosed b
nalin [4]

Answer:

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Step-by-step explanation:

<u>Given:</u>

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<u>Length is:</u>

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<u>Substitute values and solve for w:</u>

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3 years ago
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