3 years ago

Pls solve this question

Mathematics

1 answer:

EleoNora [17]3 years ago

3 0

Answer:

Step-by-step explanation:

(A+B+C+D) / 4 = 10 .... average=sum/number of item

(A+B+C)/3 = 3D ... average of first 3 (A,B,C) is triple of forth (D)

A+B+C = 9D

(9D+D)/4=10

10D = 40

D = 4

You might be interested in

What is the value of |y|+4- y* x if x = 7 and y = -2?

irga5000 [103]

The given expression is

$|y|+4-y\cdot x$

Let's replace x = 7 and y = -2.

$\begin{gathered} |-2|+4-(-2)\cdot7 \\ 2+4+14 \\ 20 \end{gathered}$ <h2>Therefore, the value of the expression is 20.</h2>

8 0

1 year ago

HELP Eva works different hours each week. These figures show her net pay for the last 6 weeks.

sleet_krkn [62]

To do this, we must find the mean of the first four weeks in the given weeks pay
So 218.52+388.67+317.68+392.11=1316.98
1316.98/4= 329.24
This is the answer and Hope this helps

5 0

3 years ago

The ratio of width to length of a rectangle is 7:10.The width of the rectangle is 91 cm.

kvasek [131]

Answer:

Length= 130 cm

For, Width= 91 cm

Step-by-step explanation:

Ratio of the width to the length of the rectangle = 7:10

Width of the rectangle= 91 cm

$\frac{Width}{Length} =\frac{7}{10}$

As, Width = 91 cm

$\frac{91}{Length} =\frac{7}{10}$

On, Cross multiplication the fraction:

$91*10=7*Length$

$7*Length=910$

Dividing by '7' both the sides:

$Length=\frac{910}{7}\\\\ Length=130cm$

6 0

3 years ago

Please give the highest value

Firlakuza [10]

Hope it helps! Please mark me as Brainliest

4 0

3 years ago

Read 2 more answers

Dad cut the rope into quarters. thst means he cut it into? halves, thirds or forths?

aev [14]

The answer to your question is,

Forths. Quarters are 25, 50, 75, 100. That's 4. :3

-Mabel <3

4 0

3 years ago

Read 2 more answers