3 years ago

Match each fraction with its equivalent decimal number. 2/5, 7/20, 3/25, 7/10

Mathematics

1 answer:

nata0808 [166]3 years ago

5 0

2/5- .4

7/20- .35

3/25- .12

7/10- .7

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Taylor bought 6 tickets to a movie. The price of each ticket was the same. After he bought the tickets, his account balance show

Sladkaya [172]

It is -11.34

-$68.04 divide by 6 is -$11.34, so instead of 11.34, it's -11.34

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3 years ago

How to write Q={1,2,3,5} in set builder form?

blagie [28]

Answer:

{x:x is a natural number less than 6}

Step-by-step explanation:

Set builder is a type of set where we have to represent any value inside a set

by using the variable x, v, b, a, c etc.

Eg A={1,2,3,4}

For eg {a: a is a natural number less than 5}

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2 years ago

A postal clerk sold 50 postage stamps for $16.05. Some were 39-cent stamps and the rest were 24-cent stamps. How many 39-cent st

svetoff [14.1K]

39x + 24(50 - x) = 1,605
13x + 8(50 - x) = 535 
13x + 400 - 8x = 535 
5x = 135 
x = 27 

Answer: 27 of 39-cent stamps were sold

7 0

3 years ago

Plzzz hurry up and help me if A+B=45 prove that (1+tanA)(1+tanB)=2

Solnce55 [7]

Answer:

see explanation

Step-by-step explanation:

If A +B = 45° then tan(A+B) = tan45° = 1

Expanding (1 + tanA)(1 + tanB)

= 1 + tanA + tanB + tanAtanB → (1)

Using the Addition formula for tan(A + B)

tan(A+B) = $\frac{tanA+tanB}{1-tanAtanB}$ = 1 ← from above

Hence

tanA + tanB = 1 - tanAtanB ( add tanAtanB to both sides )

tanA + tanB + tanAtanB = 1 ( add 1 to both sides )

1 + tanA + tanB + tanAtanB = 2

Then from (1)

(1 + tanA)(1 + tanB) = 2 ⇒ proven

7 0

3 years ago

The ratio of the lengths of two adjacent sides of a rectangle is 1/5. If it's perminiter is 24 then how wide is the rectangle

Mars2501 [29]

Width(w): 1x

Length (L): 5x

Perimeter = 2L + 2w

24 = 2(5x) + 2(1x)

24 = 10x + 2x

24 = 12x

2 = x

Answer: width = 2

7 0

3 years ago