3 years ago

Who needs Math Help?

Mathematics

1 answer:

raketka [301]3 years ago

3 0

I do i posted a lot of math do the one that i posted a long time ago

You might be interested in

Does anybody know the measure of JLM?

WARRIOR [948]

Measure of ∠JLM = m∠60°

6 0

2 years ago

Four times a number added to 3 times a larger number is 31. Seven subtracted from the larger number is equal to twice the smalle

aev [14]

Let the smaller number be x.
Let the bigger number be y.

$\begin{cases} &4x + 3y = 31 \tex{ ----- (1) } \\ &y- 7 = 2x \tex{ ----- (2) } \end{cases}$

Rearrange equation (2):
$\begin{cases} &4x + 3y = 31 \tex{ ----- (1) } \\ &y = 2x + 7 \tex{ ----- (2) } \end{cases}
$

Sub (2) into (1):

$4x + 3(2x + 7 ) = 31$
$4x + 6x + 21 = 31$
$10x + 21 = 31$
$10x = 10$
$x = 1$

Sub x = 1 into (2):

$y = 2x + 7$
$y = 2(1) + 7$
$y= 9$

Answer: The two numbers are 1 and 9.

5 0

3 years ago

Read 2 more answers

If you know this please help

Anuta_ua [19.1K]

Answer:

its c hope this helps:)

Step-by-step explanation:

4 0

3 years ago

Sorry the last one i put was the wrong one haha

Lunna [17]