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3 years ago

How to solve 2x+12 when x=-14

1 answer:

6 0

If x = -14, substitute the x back into the equation.

so now the equation is 2(-14) + 12. multiply the 2 by -14 first to get -28 + 12.
add those two together to get -16. hope this helps!

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M-4=2m how to solve this

Phantasy [73]

$m-4=2m\\m-2m=4\\-m=4\ \ \ \ \ \ \ \ \ \ \ \ |*(-1)\\m=-4$

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3 years ago

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Machine A can produce 435 widget in 3 hours. At this rate how many widget can machine A produce in 7 hours?

Vesna [10]

Answer:

1015 widgets

Step-by-step explanation:

First investigate how many widgets can machine A produce in 1 hour:

If it produces 435 in 3 hours, then it will produce one third of that in one hour:

In ONE (1) hour $\frac{435}{3} = 145$ widgets

Therefore in seven (7) hours it will produce seven times the amount it does in one hour, that is:

$145 * 7 = 1015$ widgets

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3 years ago

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balu736 [363]

Box A has 12 balls and Box B has 8 balls.
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3 years ago

Y 45° 30° N 17 I need help pls

melisa1 [442]

Answer:

x=29.4

Step-by-step explanation:

To help find the sides of a triangle, I use SOHCAHTOA.

SOH - CAH - TOA

S=O/H ( $Sine=\frac{opposite}{hypotenuse}$ )

C=A/H ( $Cosine=\frac{adjacent}{hypotenuse}$ )

T=O/A ( $Tangent =\frac{opposite}{adjacent}$ )

Let's find x first. We know 2 parts of the triangle: the adjacent leg, and the angle that is opposite of that.

So it would be tangent (tan).

opposite = 17

adjacent = 30°

Plug these numbers into the calculator and you should get your answer.

$\frac{17}{tan(30)} = 29.44486372...$

x=29.4

Try to do y on your own and let me know if you have any questions!

Also correct me if I'm wrong on anything.

Hope this information helps!

4 0

2 years ago

Jerry has a part-time job at a supermarket. The ordered pairs show the number of hours he worked for (input values) and the numb

Karo-lina-s [1.5K]

Answer:

Yes

Step-by-step explanation:

The ordered pairs are (6,72) (8,96) (5.5, 66) (9,108) (7,84).

The number of hours worked is $x$ and the money earned is $y$ .

Let us divide the values of $y$ by $x$

$\dfrac{72}{6}=12$

$\dfrac{96}{8}=12$

$\dfrac{66}{5.5}=12$

$\dfrac{108}{9}=12$

$\dfrac{84}{7}=12$

The fuction which defines the above ordered pairs is $y=12x$

It can be seen that the amount of money earned is 12 times the number of hours worked.

So, per hour Jerry earns 12 dollars.

Hence, the ordered pairs are relation.

8 0

3 years ago