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Volgvan
3 years ago
10

Five times the sum of a number and 7 equals 3

Mathematics
2 answers:
kari74 [83]3 years ago
7 0
Hi there! :)
Let the number be x. Thus, the sum of a number and 7 would be x + 7. We can now set up the equation as follows:
5(x + 7) = 3;
5x + 35 = 3;
x = -32/5
---
Hope this helps!
==jding713==
miv72 [106K]3 years ago
5 0
The answer or number that you are looking for is -6.4. You can get this by dividing 3 by 5 which is equal to 0.6. Next you would subtract 7 to reverse the act of having added it. This will give you -6.4 which is what you are looking for.
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Which pickle jar deal has the best price per ounce? $3.45 or 14 oz $4.35 for 16 oz $3.29 for 12 oz $4.25 for 15 oz
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3.29/12=0.274166666667
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Hope this helps!

8 0
3 years ago
What is the equation of a line that passes through (4,  3) and has a slope of 2? y=2x−11 y=2x−7 y=2x−1 y=2x−5
LenaWriter [7]

Step-by-step explanation:

The coefficient of the x term repesents the slope of the graph.

So we have y = 2x +- ( ).

We have to find our number term, so let's substitute x = 4 and y = 3.

(3) = 2(4) +- ( )

3 = 8 +- ( )

To make this right, the number term must be -5.

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So the equation is y = 2x - 5.

8 0
4 years ago
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4 0
3 years ago
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Dinosaur fossils are often dated by using an element other than carbon, like potassium-40, that has a longer half life (in this
Firlakuza [10]
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N(t)=N_0\left( \frac{1}{2} \right)^ \frac{t}{t_{  \frac{1}{2} }}

Given that <span>potassium-40 has a half life of approximately 1.25 billion years.

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3 0
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