All categories

2 years ago

Brian, Alex & Colin share some money in the ratio 1:9:3.

Mathematics

1 answer:

fiasKO [112]2 years ago

3 0

Answer:

Step-by-step explanation:

1:9:3

brian gets x

alex gets 9x

colin gets 3x

Brian and colin receive 40

x + 3x = 40

x = 10

alex gets 9x = £90

You might be interested in

Use the interactive ruler to measure the distance from the center of dilation, C, to the image and pre-image. The distance from

inna [77]

the answer is : 4, 2, one-half.

7 0

3 years ago

Read 2 more answers

Can someone please help with this and show me in steps will give brainliest?

alina1380 [7]

A. 3 times 10^4
90000000 divided by 3000 is 30000 which happens to be equal to 3 times 10^4

If you want to learn how to do this just take your whole number ex: 3 and put 10^6 and you will have 3 followed by 6 zeros. The ^ is just how many zeros will follow your whole number at first.

5 0

3 years ago

<img src="https://tex.z-dn.net/?f=%5Cleft%20%5C%7B%20%7B%7Ba%5E2%20-2a-b%5E2%3D0%7D%20%5Catop%20%7B2b%2B2ab%3D0%7D%7D%20%5Cright

oksian1 [2.3K]

Given :-

a² - 2a - b² = 0
2b + 2ab = 0

To find :-

Value of a and b .

Solution :-

Taking second equation:-

2b + 2ab = 0
2b ( 1 + a ) = 0
2b = 0 or (1+a) = 0
b = 0 , a = -1

Substitute in first equation :-

a² - 2a - b² = 0

When b = 0 ,

a² - 2a - 0² = 0
a² - a = 0
a( a -1) =0
a = 0 , 1

When a = -1 ,

(-1)² - 2*(-1) - b² = 0
1 + 2 - b² = 0
b² = 3
b = ±√3

Answer :-

a = 0,1 ; b = 0
a = -1 , b = ±√3

8 0

2 years ago

Which of the following gives a single solution of the |x+3|- 2

topjm [15]

Answer:

x=-1

Step-by-step explanation:

given $\left | x+3 \right |$ -2=0

$\left | x+3 \right |$ =2

x+3=+2

x=-1, also, x+3=-2

x=-2-3=-5

hence x=-1 , -5 answer

6 0

3 years ago

Which features describe the graph? Select all that apply

victus00 [196]

Answer:

- Decreasing

Step-by-step explanation:

im not sure of the last two but the others are for sure a no

8 0

3 years ago