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Luda [366]
3 years ago
13

Jack got the expression 7x + 1 and then wrote his answer as 1 + 7x. Is his answer an equivalent expression? How do u know? Expla

in using extended vocabulary
Mathematics
2 answers:
nadezda [96]3 years ago
6 0
Yes, it is an equivalent expression because even though you move two pieces of an equation it will still equal the same thing, unless there are parentheses involved.
elena-14-01-66 [18.8K]3 years ago
6 0
7x + 1    is composed by    + 7x       and       + 1

1 + 7x     is composed by      + 1          and      + 7x


So
7x + 1 = 1 + 7x

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4 (5x-3) -64 (3-x) -3 (12x-4)=96
Yuki888 [10]
Are you trying to simply the equation if so x = 6
4 0
2 years ago
The difference of two numbers is 3 and the sum of their squares is 65. find the numbers.
Vitek1552 [10]
<span>The numbers are 4 and 7
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5 0
2 years ago
Read 2 more answers
Mark wants to improve his free throw percentage in basketball He has shot 1,250 free throws over the last 20 days. He shot eithe
Sedaia [141]
Let's use a for number of days when he shot 50 shots and b for number of days when he shot 100 shots.
We have:
a + b = 20

We also know that he shot total of 1250 shots:
50a + 100 b = 1250

We have two equations. We can solve them for a and b.  Let's rearange first equation for a:
a= 20 - b
We insert this into second equation:
50 * (20 - b ) + 100b = 1250
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b = 5
a = 20 - 5
a = 15

Mark shot 100 shots on 5 days.
4 0
3 years ago
Turn this improper fraction in mixed numbers.23/7​
Pavel [41]

Answer:

3  2 /7

Step-by-step explanation:

Divide using long division. The whole number portion will be the number of times the denominator of the original fraction divides evenly into the numerator of the original fraction, and the fraction portion of the mixed number will be the remainder of the original fraction division over the denominator of the original fraction.

3 0
2 years ago
Solve for u in terms of s, t, and v. <br> t = u + s + v
harina [27]

Answer:

t = u + s + v \\  \boxed{u = t - s - v}

  • <u>u = t-s-v</u> is the right answer.
7 0
2 years ago
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