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Katyanochek1 [597]
3 years ago
5

Solve 7.25x + 10 = 2.25x + 25 for x.

Mathematics
1 answer:
Aleksandr [31]3 years ago
4 0

Answer:

x=3

Step-by-step explanation:

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7. The cost of 2 notebooks and 4 folders is
KATRIN_1 [288]

Answer: B (The cost of a notebook is $0.75, and the cost of a folder is $0.25.)

Step-by-step explanation:

No need for explanation. i know i’m right!!

5 0
3 years ago
How many integers $n$ satisfy $-4n\ge 12$ and $n+5>2$??
Dahasolnce [82]

-4<em>n</em> ≥ 12   ==>   <em>n</em> ≤ -3

<em>n</em> + 5 > 2   ==>   <em>n</em> > -3

But <em>n</em> cannot be both less than/equal to -3 AND greater than -3, so there are no integers <em>n</em> that satisfy these inequalities.

6 0
3 years ago
What is the value of the expression, written in standard form?<br>(6.6x10^-2)<br>(33x 10^-4)​
Thepotemich [5.8K]

Answer:

200

Step-by-step explanation:

Steps

6.6 x 10^{-2}/3.3 x 10-4

10^{-2}-4(-4) x 6.6/3.3

10^{-2} x 6.6 = 660/3.3

=200

3 0
3 years ago
The 10th-grade class officers ordered t-shirts and sweatshirts to sell as a fundraiser. Each t-shirt weighed of a pound, and eac
Marina86 [1]

<span>In this item, it is unclear of the weights of each of the t-shirt and sweatshirt. We first represent the weights of the t-shirts and the sweatshirts by t and s, respectively. If for example, each t-shirt weighs 2 pounds and each sweatshirt weighs 3 pounds, the answer would be the first choice. </span>

4 0
4 years ago
What is going f(x) = 2x2+28x-5 written is vertex form?
AVprozaik [17]

f(x) = 2(x^2 + 14x +   ) - 5    2 is taken out  of first 2 terms.

f(x) = 2(x^2 + 14x + (14/2)^2 ) - 5 - 2(14/2)^2

<em><u>2 steps </u></em>

  • Inside the brackets: Linear term's coefficient (14) divided by 2 and squared
  • Outside the brackets: (14/2)^2 multiplied by 2 and subtract so that there is no change in the value of the quadratic.

f(x) = 2*(x + 7)^2 - 103

The graph is of the original quadratic.

8 0
3 years ago
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