Answer:
2<em>x </em>+ 7 = 25
<em>x </em>= 7
Step-by-step explanation:
Gary: 25
Sean: <em>x</em>
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Let's break down the sentence into mathematical terms
Gary <u>is</u> 25 years old. That <u>is</u> 7 more than twice <u>Sean's age.</u>
In math, is means equal to. It is represented with an equal sign (=)
Gary = 25. 25 = 7 more than twice <u>Sean's age.</u>
7 more is represented by 7 +
Gary = 25. 25 = 7 + than twice <u>Sean's age.</u>
Twice means double which is 2 ·
Gary = 25. 25 = 7 + 2 · <u>Sean's Age</u>
<u>Sean's Age</u> will be represented by <em>x</em>
Gary = 25. 25 = 7 + 2<em>x</em>
We don't need it to say<em> "Gary = 25" </em>in our equation.
25 = 7 + 2<em>x</em>
Let's rewrite it with the associative property.
2<em>x </em>+ 7 = 25
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Now, solve
2<em>x </em>+ 7 = 25
<em>-7 -7</em>
2<em>x</em> = 18
<em>÷</em><em>2 </em><em>÷</em><em>2</em>
<em>x </em>= 7
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Sean is 7 years old.
Answer:
42.7mph (can round it to 43mph)
Step-by-step explanation:
since you have distance and time to find the speed you can just divide the distance 1112 with the time 26 and you will get the speed.
Answer:
The total amount is $2250.
Step-by-step explanation:
Given that each person pays $5 and there is 450 people so you have to multiply :
$5 × 450 = $2250
Answer:
Area- (4x+3)(3x-1)
Area- (12x^2 + 9x-4x-3)
Area- (12x^2 +5x-3)
Area- 12x^2 + 5x - 3
Let me know if this helps!