A system of equations is:
B )
x + y = 375
x = 2 y - 60
We will solve this system:
2 y - 60 + y = 375
3 y = 435
y = 435 : 3
y = 145
x = 375 - 145
x = 230
Allan`s score was 230 and Dave`s score was 145.
Not sure what the question is but 3x + 7 is the algebraic expression that would represent this statement.
Answer:
x<-32
Step-by-step explanation:
423 might be your number. 423 is divisible by 47, is also divisible by 9 which is a perfect square, and is an odd three digit number. To find this answer all you have to do is multiply 47 by numbers that are perfect squares until you get the number that fits the criteria.
Let's solve your inequality step-by-step.
−5(4x+6)<−18x+6+4x
Step 1: Simplify both sides of the inequality.
−20x−30<−14x+6
Step 2: Add 14x to both sides.
−20x−30+14x<−14x+6+14x
−6x−30<6
Step 3: Add 30 to both sides.
−6x−30+30<6+30
−6x<36
Step 4: Divide both sides by -6.
−6x
−6
<
36
−6
x>−6
Answer:
x>−6
