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2 years ago

Amy spends 30% of her money on a

Mathematics

1 answer:

ioda2 years ago

8 0

Answer:

£2.00

Step-by-step explanation:

Badly worded, as they oftena are! But to me it means

30% spent

60% saved (I.e also taken away and put somewhere else)

10% leftover equals 20p

So 20p equals 10% of what she originally had, so 100% must be £2.00, does that make sense?

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3 years ago

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3 years ago

In a survey of 600 students in a school. 150 student were found to be taking tea and 225 taking coffee, 100 were taking both tea

EastWind [94]

Answer:

125

Step-by-step explanation:

600=150+225+100+X=475+X

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3 years ago

Read 2 more answers

After drawing the line y = 2x − 1 and marking the point A = (−2, 7), Kendall is trying to decide which point on the line is clos

igor_vitrenko [27]

Answer:

Step-by-step explanation:

Having drawn the line, Kendall must verify that the point P belongs to the line y = 2x-1 and then calculate the distance between A-P and verify if it is the closest to A or there is another one of the line

Having the point P(3,5) substitue x to verify y

y=2*(3)-1=6-1=5 (3,5)

Now if the angle formed by A and P is 90º it means that it is the closest point, otherwise that point must be found

$d_{AP}=\sqrt{(y_{2}-y_{1})^{2}+(x_{2}-x_{1})^{2}}=\sqrt{(5-7)^{2}+(3-(-2}))^{2}}=\\\sqrt{(-2)^{2}+(5)^{2}}=\sqrt{29}$

and we found the distance PQ and QA

; $d_{PQ}=\sqrt{125}$ , $d_{QA}=12$

be the APQ triangle we must find <APQ through the cosine law (graph 2).

3 0

3 years ago

What percent of 120 is 90

Alex777 [14]

Answer:

75%

Step-by-step explanation:

90/ 120 is the same as 75 or 3/4 so 75% of 120 is 90

7 0

3 years ago