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slavikrds [6]
3 years ago
11

After 25 years,Hema's age will become four times that of her present age.find Hema's present age?​

Mathematics
2 answers:
Sophie [7]3 years ago
6 0
Let Hema's present age be x years.
After 15 years,her age will be (x+15) year.
according to the question ,
4x=x+15
4x−x=15
3x=15
x=5
Hence,Hema's present age is 5 years.
WINSTONCH [101]3 years ago
3 0

Answer:

Step-by-step explanation:

We can make this into the equation 25 + x = 4x

we isolate the equation by subtracting x from 4x. (3x)

Therefore, 25 = 3x. Therefore, Hema is 8.

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The diagram shows the straight line which passes through the points (0, 1) and (3, 13).
Damm [24]

Answer:

y=4x+1

Step-by-step explanation:

First find the gradient of the straight line

Then substitute the gradient in the formula y=mx+c.

Substitute one of the given coordinates in the line to find the value of c.

After finding the value of c substitute it in the formula but do not write the values of x and y in the formula

5 0
2 years ago
How can u convert a fraction to a decimal if the fraction has a multiple of 10 in the denominator
jonny [76]

So what you would do is you would divide the top number (numerator) by the bottom number (denominator) Like you would normally. So take 3/10 for example you would punch into a calculator 3 divided by 10 or do the work which would be

0.3

and that is how you convert a fraction into a decimal with a denominator of 10

I hope that this helped you. (:

8 0
3 years ago
Determine the intercepts of the line.<br> y-6= 4( + 5)<br> y-intercept:<br> z-intercept
Shtirlitz [24]

Answer:

  1. (0, 26)
  2. (-6.5, 0)

Step-by-step explanation:

Turn the equation into slope-intercept form [ y = mx + b ].

y - 6 = 4(x + 5)

y - 6 = 4x + 20

y = 4x + 26

We know that b = y-intercept for the y-intercept is 26.

Substitute 0 for y to find the x intercept.

0 = 4x + 26

-26 = 4x

-6.5 = x

Best of Luck!

7 0
3 years ago
The prices of three t-shirts styles are $24, $30 and $36. the probability of choosing a $24 t-shirt is 1/6. the probability of c
Slav-nsk [51]

\text{Answer} : \text{The expected value of a t-shirt is \$31.}

Explanation:

Since we have given that

The prices of three t-shirts styles  i.e $24, $30, $36 with their probability is given by

\frac{1}{6}, \frac{1}{2},\frac{1}{3}

As we know that,

E(X)= \sum_{1}^{3}x_iP(x_i)

\text{where} x_i \text{ is the prices of t- shirts styles}

Now,

x_1= \$24 , x_2=\$30 , x_3=$36

and

P(x_1)=\frac{1}{6},P(x_2)=\frac{1}{2}, P(x_3)=\frac{1}{3}

So,

E(X)= 24\times \frac{1}{6}+30\times\frac{1}{2}+36\times \frac{1}{3}\\=4+15+12\\=31

So, the expected value of a t-shirt = $31.

4 0
3 years ago
Tyler took a total of 16 quizzes over the course of four weeks. How many weeks of school will Tyler have to attend this quarter
wlad13 [49]

Answer:

he will have to go one more week and all together it would be five weeks

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16/4=4

you need four more to get to 20, and if he does 4 quizzes a week he only needs one more week.

7 0
3 years ago
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