Answer:
x must equal 5 and y must equal 2
therefore,
5a + 2b = 23 and
5a - 2b = 7.
I'm gonna take 5a + 2b = 23 and add 7 to each side:
5a + 2b + 7 = 30
and substitute 5a -2b in for 7 on the left side:
5a + 2b + (5a-2b) = 30
10a = 30
a = 3
Now we know a. Now take
5a -2b = 7
and substitute in 3 for a
5*(3) - 2b = 7
15 -2b = 7
8 = 2b
b = 4
a = 3 and b = 4
Step-by-step explanation:
Answer:
slope = 3
y-intercept = -4
y = 3x-4
Step-by-step explanation:
Answer: p + 5 = new amount
Step-by-step explanation:
You have to write it the way it's read
she has p = current coins
she found 5 more, ( +5 )
write that down and you get p + 5 = new amount
hope this helps
plz mark brainleist
Do your school bro: The Vikings were also known as Norsemen because<span>they sailed on ships called Norses.they came from the northland of Scandinavia.<span>they were barbarians.</span></span>
Answer:
32*15 = 480
1500-480 = 1020
1020/10
102 races
Step-by-step explanation:
