Nine less than the product of 2 and number is equal to 7
2 answers:
Answer:
x = 8
Step-by-step explanation:
Step 1: Write an equation
2x - 9 = 7
Step 2: Use the Addition Property of Equality
2x = 16
Step 3: Use the Division Property of Equality
x = 8
Answer:
number = 8
Step-by-step explanation:
Let "number" = x. Set the equation.
"product of 2 and number" = 2(x)
"nine less" = -9
"equal to 7" = "= 7"
2x - 9 = 7
Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Add 9 to both sides.
2x - 9 (+9) = 7 (+9)
2x = 7 (+9)
2x = 16
Divide 2 from both sides.
(2x)/2 = (16)/2
x = 16/2
x = 8
8 is your answer.
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Let volleyball be v and let basketball be b.
v : b = 4 : 7, b = 21
v : 21 = 4 : 7
v/21 = 4/7
7*v = 4*21
v = 4*21/7
v = 4*3
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Hope this helps.
Answer:
3x+2x+2x=7*2
7x=14
x=14/7
x=2
The number is near zero, so it is classified as "low." Its sign is negative, so it is a ...
-low negative correlation
Answer:
8.1
Step-by-step explanation:
2x^2 -9 = 121
+9 +9
2x^2 = 130
/2 /2
x^2 = 65
x= sqrt (65)
x= 8.06225...
x = 8.1
