3 years ago

Tell whether the side lengths 18, 24, and 30 would form a right triangle?*

Mathematics

1 answer:

allochka39001 [22]3 years ago

7 0

Answer:

yes 18 24 and 30 does form a right triangle

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Nick and June win some money and share it in the ratio 4:5. Nick gets £40. How much did June get?

sineoko [7]

Answer:

June gets $\£50$

Step-by-step explanation:

Let

x ----> amount of money Nick gets

y ----> amount of money June gets

we know that

$\frac{x}{y}=\frac{4}{5}$ -----> equation A

$x=40$ ----> equation B

solve the system by substitution

substitute equation B in equation A

$\frac{40}{y}=\frac{4}{5}$

solve for y

Multiply in cross

$(40)(5)=y(4)\\y=200/4$

$y=\£50$

8 0

4 years ago

Are these expectations equivalent? Explain why or why not 42+35 7(6+5)<br><br> HELP PLEASE

const2013 [10]

$\frac{42}{35} :\frac{6}{5}$

$7\left(\frac{6}{5}\right)=\frac{42}{5}$

They are not equivalent.

6/5= 1.2

42/5= 8.4

3 0

3 years ago

IN A CLASS OF 30 STUDENTS 13 OF THEM ARE BOYS WHAT PERCENTAGE ARE GIRLS?

mestny [16]

Class of students - number of students that are boys = numbers of students that are girls

30 - 13 = 17

To change the number of students that are girls into percentage...

17/1 * 1/100 = 17/100

17/100 in a % form = 17%

The percentage of girls in the class is 17%

5 0

3 years ago

it snowed 15% more in Big Bear than Arrow Head.If it snowed 50 inches in Arrow head, how many inches did it snow in Big Bear

Veronika [31]

It snowed 57.5 in Big Bear

Because 15% of 50 is 7.5 and 50+7.5=57.5

Hope this is helped

3 0

3 years ago

chris has 5 stack of dvd each stack has10 dvds if chris add 2 more identical stacks of dvds to the shelves how many dvds will ch

Wewaii [24]

First if each stack has 10 cds and there is 5 stacks you do 10 X 5= 50. then you add two more stacks of 10 ( 2 stacks of 10=20) and add 20 to 50 which is 70

5 0

4 years ago