Ask question

Ask question

All categories

2 years ago

8

triple one number added to another number is 22. if the second number is equal to 8 less than 2 times the first number, find the

two numbers

1 answer:

Scrat [10]2 years ago

4 0

Answer:

6 and 4

Step-by-step explanation:

Let the numbers are x and y.

<u>Given:</u>

3x + y = 22
y = 2x - 8

<u>Solve by substitution:</u>

3x + 2x - 8 = 22
5x = 22 + 8
5x = 30
x = 6

<u>Find y:</u>

y = 2*6 - 8 = 12 - 8 = 4

You might be interested in

Write an expression with the value of 12.It should contain four numbers and two different operations

Nady [450]

8-2+(12÷2)

Hope this helps :)

5 0

3 years ago

Read 2 more answers

Factor x^2+6x-16 into the form (x+a)(x-b), what is a and b?

vfiekz [6]

Answer:

a=-8 b=2

Step-by-step explanation:

x^2+6x-16

x^2+(8-2)x-16=0

x^2+8x-2x-16=0

X(X+8)-2(X+8)=0

(X+8)(x-2)=0

Compare with (X+a)(X+b)

Where we get a=-8 b=2

8 0

2 years ago

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

fiasKO [112]

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

3 0

2 years ago

(b) Write the ratio 12:30 in the form 1:n

kari74 [83]

answer:

1 : 2.5

explanation:

given ratio: 12 : 30

divide by 12:

$\frac{12}{12}$ : $\frac{30}{12}$

1 : 2.5

n = 2.5

4 0

1 year ago

Read 2 more answers

7.4=n-2.6 could you plz solve this or give me some good sites that could solve it for me oh and plz show the steps to thanks

lisov135 [29]

Please try to follow this closely.
Ready ? OK, here goes:

<em> Add 2.6 to each side of the equation.</em>

6 0

2 years ago

Read 2 more answers