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2 years ago

PLS HELP

Mathematics

1 answer:

sleet_krkn [62]2 years ago

8 0

Answer: the 3rd one

Step-by-step explanation:

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4x+y=25 <br> x- 3y=16<br><br> Simultaneous equation

Lerok [7]

you change the y to have it y=3x+16 and same with the other one i think

7 0

3 years ago

C) Bhurashi can do 1/3 part of a work in 6 days.

Simora [160]

Answer:

Step-by-step explanation:

$\frac{1}{3}$ part of work can be done in 6 days.

Days taken to complete the whole work:

= 6 * 3

= 18 days

ii. Whole work will be done in 18 days.

So, 1 day work = $\frac{1}{18}$

iii. Work done in 9 days :

$\frac{1}{18} \times 9$

$= \frac{1}{2}$

So, remaining work :

$1 - \frac{1}{2}$

$= \frac{1 \times 2 - 1}{2}$

$= \frac{2 - 1}{2}$

$= \frac{1}{2}$ part of work

Hope this helps...

Good luck on your assignment..

8 0

3 years ago

Please help me!!!!! :)

dsp73

To find the volume,we would first need to find the height of square pyramid, by it's base edge and slant height using Pythagoras theorem:

${height }^{2} = {13}^{2} - {10}^{2} \\ {height }^{2} = 69 \\ height = \sqrt{69}$

We can then use the pyramid formula to find the volume:
$base \: \times \: height \: \times \frac{1}{3}$

In this case,the volume will be:

10×_/69×1/3
=27.68874...
≈27.7 units^3

Hope it helps!

5 0

3 years ago

If Joy's age is now three times her age 14 years ago how old is she

horrorfan [7]

Answer: She is 42 Years Old.

Step-by-step explanation: If She is 3 times her age, you have to multiply. and That means you have to do 14 x 3. and that equals 42. Good Luck on Your Test!

4 0

3 years ago

Read 2 more answers

Which of the following proportions can be used to find the value of n?

MakcuM [25]

Answer:

B. $\frac{n}{11} =\frac{15}{5}$

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers