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Softa [21]
3 years ago
9

a girl went to school for the first time and asked her how old are you the girl said I don't know but I know my mother's age is

twice my age just asked her how old is your father and the girl said I don't know who my father is is is is is 5 times the age of my mother the girl said I don't know but I know the sum of their ages is 100​
Mathematics
1 answer:
elena55 [62]3 years ago
3 0

Answer:

Nw how old is the girl, her mum & her dad?

let x=xmum's age

x+5=dad's age

x/2 =girl's age

x+x+5+x/2=100

3.5x=95

xmum's age=38

dad's age=43

girl's age=19

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Point F is at (0, -10) and point H is at (-6, 5). Find the coordinates of point G on line segment FH such that the ratio of FG t
Tanya [424]

Answer:

G(x,y)=(-4,0)

Step-by-step explanation:

We use the section formula:

(x,y)=\left(\dfrac{mx_2+nx_1}{m+n}, \dfrac{my_2+ny_1}{m+n}\right)

Given:

F(x_1,y_1)=(0, -10)\\H(x_2,y_2)=(-6, 5)\\FG:GH=m:n=2:1

We substitute the values to get:

G(x,y)=\left(\dfrac{2*-6+1*0}{2+1}, \dfrac{2*5+1*-10}{2+1}\right)\\=\left(\dfrac{-12}{3}, \dfrac{10-10}{3}\right)\\=\left(\dfrac{-12}{3}, \dfrac{0}{3}\right)\\\\G(x,y)=(-4,0)

5 0
3 years ago
you take out a mortgage for 350,000$ at 4% compounded monthly your payment is 1671$ write a recursive formula
Ymorist [56]

Answer:

Not sure if this is right but it might be something like

350,000-4%+1671m

or

3500,000-4%y/1671m

Step-by-step explanation:

The numbers we know are 350,000 4% and 1671 per month

350,000 is the full mortgage

4% is the APR or annual percentage rate like interest

and we know the monthly for the mortgage is 1671 per month

4 0
3 years ago
Isabelle is planning a road trip to her friend's house. She looks at a map that has a scale of 1/2 in. to 25 mi. The road distan
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1/2+1/2=1
2*12=24
d=24*25
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I believe I did it in my head so not entirely sure but I am heavily certain of my math
4 0
3 years ago
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TiliK225 [7]

Answer: 6 students

What we know:

Students: 24

Students who play checkers: \frac{2}{3}

Students who also play sudoku:\frac{3}{8} of the \frac{2}{3}

24 ÷ 3 = 8, so 8 × 2 = 16 (students who play checkers)

\frac{3}{8} × 2 = \frac{6}{16}

So the answer is,

6 students play both checkers and sudoku

8 0
3 years ago
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7x(-3) x (-2)^2<br> help please!
Anvisha [2.4K]
    [7×(-3)]   ×   (-2)²
=     (-21)    ×    4
=             -84
5 0
3 years ago
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