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Fittoniya [83]
3 years ago
14

What is the solution to the equation 3(2x+5) = 3x+4x?

Mathematics
1 answer:
n200080 [17]3 years ago
4 0
X=15
expand the brackets and collect like terms so 6x+15=7x
then -6x to get x=15
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Yao Xin puts \dfrac{3}{10} 10 3 ? start fraction, 3, divided by, 10, end fraction liters of potting soil in each pot for plantin
slega [8]

Answer:

<em>She can fill 19 pots.</em>

Step-by-step explanation:

Yao Xin puts \frac{3}{10} liters of potting soil in each pot.

Suppose, the number of pots Yao Xin can fill is x

So, <u>the total amount of potting soil</u> in x number of pots will be:  \frac{3}{10}x liters.

Given that, she has 5\frac{2}{3} or \frac{17}{3} liters of potting soil. So, the equation will be........

\frac{3}{10}x= \frac{17}{3} \\ \\ x=\frac{17}{3}* \frac{10}{3}= \frac{170}{9}=18\frac{8}{9}

So, she can fill  pots.

4 0
3 years ago
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Which of the following statements are mathematical statement?
kvv77 [185]

Answer:

a is the right answer atleast that's what I think

3 0
3 years ago
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Which Pairs are additive inverses?<br> a. 6,-(-6)<br> b. -7,7<br> c.-7,-7<br> d.7,7<br> e.6,-6
xz_007 [3.2K]

I was never sure of what the "additive inverse" is. 
So, just now, just for you, I went and looked it up.

The additive inverse of any number ' A ' is the number
that you need to ADD to A to get zero.  That's all !

So now, let's check out the choices:

a), 6, -(-6)

That second number, -(-6), is the same as +6 .
So the two numbers are the same.
Do you get zero when you add them up ?  No.

b). -7, 7
What do you get when you add -7 and 7 ?
You get zero.
So these ARE additive inverses.

c). -7, -7
What do you get when you add -7 to -7 ?
You get -14 .  That's not zero, so these
are NOT additive inverses.

d).  7, 7
What do you get when you add 7 to 7 ?
You get 14.  That's NOT zero, so these
are NOT additive inverses.

e).  6, -6
What do you get when you add 6 to -6 ?
You get zero.
So these ARE additive inverses.

What do we end up with from the list of choices:

a).,  c).,  and d). are NOT additive inverses.

b). and e). ARE additive inverses.

7 0
3 years ago
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sashaice [31]
Turn it into slope-intercept form.
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y = -x/2 + 7
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Perpendicular lines have slopes that are opposite reciprocal, so the slope of the perpendicular line is 2.
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29. Find CD.<br> 30. Find ZV.
Tems11 [23]

Answer:

for cd it's 12 I believe fs

8 0
2 years ago
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