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FrozenT [24]
3 years ago
5

3x = -15 please help please

Mathematics
2 answers:
choli [55]3 years ago
6 0

Answer:

x=-5

Step-by-step explanation:

3x = -15 3 times what will give you -15

makkiz [27]3 years ago
3 0

Answer:

-5 is the answer

Step-by-step explanation:

Take the equation you have and divide both sides by 3 to isolate the x. -15 divided by 3 equals -5. You must get the x by itself in order to solve the equation.

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Dominik [7]

Answer:

y = -3/2x + 3

Step-by-step explanation:

To figure out the equation, it is very simple:

First you must find the y-int

The y-int is the point where the line touches the y-axis

The only point that touches the y-axis is (0,3)

so the y-int is 3

Next we need to find the slope, which is rise over run

we must find how far one point is from another point

so we start from the point (0,3) on the y-axis, then we go down 3 and to the right 2 and we are on the point (2,0)

so the slope is -3/2, because the line is going downwards, not upwards

now we just put the equation together, in the slope intercept form

y-int = b = 3

slope = m = -3/2

y = mx + b

y = -3/2x + 3

3 0
3 years ago
Read 2 more answers
(18)Calculate the volume of this shape
Nikolay [14]

Answer:

108 cm cubed

Step-by-step explanation:

(1/2 of length•height)•width

(1/2 of 6•4)•9

(1/2 of 24) •9

12•9

108

5 0
3 years ago
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Minchanka [31]

Answer:

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Step-by-step explanation:

8 0
3 years ago
Suppose a laboratory has a 38 g sample of polonium-210. The half-life of polonium-210 is about 138 days. How many half-lives of
ira [324]
To find the number of half lives divide the total number of days by the number of days for 1 half live:

1104 / 138 = 8

There are 8 half lives.

To find the total amount left multiply the starting amount by 1/2 to the 8th power:

38 * 0.5^8 = 0.148 = 0.15 grams

The answer is the last one.
6 0
3 years ago
Read 2 more answers
Please answer quick and show work !
Sedbober [7]

Answer: $293.28

Step-by-step explanation:

We know that 282 is the 100% price tag on the bicycle. And there is a 4% tax applied to the 282. So we need to find out how much is 4% of 282.

282/100% = x/4% (we don’t know how much is 4% so its represented by X.


do a cross over where you end up with this:


282 (4) = x (100) we want to have X on its own as it represents the 4% to which we are looking for the amount in dollars. So you end up with this:


282 (4) /100 = x


solve the multiplication first and then divide.


1128/100 = x

11.28 = x


so now we know 4% of 282 is $11.28 so we add it to know how much does this person pay.


$282 + $11.28 = $293.28

4 0
3 years ago
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