Ask question

Ask question

All categories

2 years ago

13

In the past year, Ann watched 27 movies that she thought were very good. She watched 90 movies over the whole year. Of the movie

s she watched, what percentage did she think were very good?

1 answer:

julia-pushkina [17]2 years ago

5 0

Answer:

30%

Step-by-step explanation:

27 over 90 is equal to 0.3 in decimal form, turn that into percentage by multiplying by 100, and you get 30%

You might be interested in

Which fraction do you multiply by to simplify 5/ 4 - 3i ?

Rzqust [24]

So I assume
$\frac{5}{4-3i}$

If so. Let us begin.

$\mathrm{Multiply\:by\:the\:conjugate}\:\frac{4+3i}{4+3i} \ \textgreater \ \frac{5\left(4+3i\right)}{\left(4-3i\right)\left(4+3i\right)} \ \textgreater \ \left(4-3i\right)\left(4+3i\right)$

$\mathrm{Apply\:complex\:arithmetic\:rule}:\ \left(a+bi\right)\left(a-bi\right)=a^2+b^2$
$Where\;a=4,\:b=-3 \ \textgreater \ 4^2+\left(-3\right)^2 \ \textgreater \ Refine \ \textgreater \ 25$

$\frac{5\left(4+3i\right)}{25} \ \textgreater \ \mathrm{Cancel\:the\:common\:factor:}\:5 \ \textgreater \ \frac{4+3i}{5}$

$Group\:the\:real\:part\:and\:the\:imaginary\:part\:of\:the\:complex\:number$
$\frac{4}{5}+\frac{3}{5}i\;is\;our\;answer!$

Hope this helps!

3 0

2 years ago

An astronomy club wants to buy six new eyepieces for their telescope. Four of the lenses cost $53.98 each. Two lenses cost $21 e

snow_lady [41]

Answer:

239.92

Step-by-step explanation:

53.94×4=215.92

Then you do 21×2=24 then you take the 215.92 and the 24 and add them together and it gives you 239.92

7 0

2 years ago

Read 2 more answers

Martina is currently 10 years older than her cousin Joey. In 3 years she will be 3 times as old as Joey. Use this information to

chubhunter [2.5K]

Answer:

m = j + 10

m + 3 = 3x

Step-by-step explanation:

8 0

3 years ago

An airplane flying at attitude of 32,000 feet descends at a rate of 1,300 feet per minute. If the plane descends for 15 minutes,

Furkat [3]

Since the plane descends 1,300 feet per minute it would descend 19,500 feet after 15 minutes (1,300 x 15 = 19,500) Subtract this from the plane's initial altitude 32,000 and the new altitude will be 12,500. (32,000-19,500=12,500)

6 0

3 years ago

user100 [1]

Answer:

A. y = –5x – 27

Step-by-step explanation:

Find the slope of the original line and use the point-slope formula y − y 1 = m ( x − x 1 ) to find the line parallel to y = − 5 x + 3 .

y = − 5 x − 27 PARALLEL

...................................................................................................................................................

Find the negative reciprocal of the slope of the original line and use the point-slope formula y − y 1 = m ( x − x 1 ) to find the line perpendicular to y = − 5 x + 3 .

y = 1 /5 x + 21 /5 PERPENDICULAR

7 0

2 years ago