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3 years ago

I need help what is 30% of 31

Mathematics

2 answers:

Ainat [17]3 years ago

4 0

Answer:

9.3

Step-by-step explanation:

Is means equals and of means multiply

W = 30% * 31

Change to decimal form

W = .30 *31

W = 9.3

Stella [2.4K]3 years ago

4 0

9.3 is correct ^. Also if you look on google “30% of 31” it tells you the answer immediately :)

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The value of a dvd player decreases by 60% each year. If you purchased this dvd player today for $180, how much would the player

Volgvan

The formula is
A=p (1-r)^t
A future value?
P present value 180
R rate of decreases 0.6
T time 2 years
A=180×(1−0.6)^(2)
A=180×(0.4)^(2)
A=28.8

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3 years ago

Solve the equation : |x| - 6 = 4

wlad13 [49]

Answer:

x=10

Step-by-step explanation:

10-6 is equal to 4. The absolute value of 10 is 10. Therefore, x=10. Brainliest?

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3 years ago

Hippalectryon

horrorfan [7]

Since the stadium is 6 mi from the practice field which is itself 1 mi from the house, it can either be (1+6)=7 mi North or (1-6)=-5 -> 5 mi South depending on the North/South direction.

the answer is thus A

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3 years ago

How do the graphs of f (x) = x 2 and g (x)= 3/4 x 2? relate?

Agata [3.3K]

Answer:

$g(x)$ is a horizontal stretch of $f(x)$ by $\frac{3}{4}$ units.

Step-by-step explanation:

The given functions are;

$f(x)=x^2$

and

$g(x)=\frac{3}{4}x^2$

The parent function is $f(x)=x^2$ .

The function $g(x)=\frac{3}{4}x^2$ is a horizontal stretch of $f(x)=x^2$ by $\frac{3}{4}$ units.

8 0

4 years ago

Read 2 more answers

A 5.ft tall man casts a shadow along the ground that is 8 ft. long. At the same time a giraffe casts a shadow that is 12 ft. lon

forsale [732]

Answer : 7.5 ft

Step-by-step explanation:

when the length of the shadow is 8ft, the actual height of the man = 5ft

8:5

let the giraffe be 'x' ft tall.

if the length of the shadow is 12ft, actual height = x ft

12:x

8:5 x 12:x

$\frac{8}{5}$ × $\frac{12}{x}$

x= $\frac{15}{2}$

x=7.5 ft

Therefore, the giraffe is 7.5ft tall.

4 0

1 year ago

Read 2 more answers