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kkurt [141]
3 years ago
15

Find the missing number ___:7 = 12:21 A.14 B.12 C.4 D.3

Mathematics
1 answer:
Nadusha1986 [10]3 years ago
6 0
<span>The question is asking us to "find the missing number ___:7 = 12:21 First, let's see how similar are 7 and 21 - 21 is 7 multiplied by 3. So the gap will be filled in by something that multiplied by 3 will give us 12. So we have : x*3=12, and also: x=12/4=4, so the answer is C.4</span>
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nirvana33 [79]

Answer:

2x^2/3yz^7

Step-by-step explanation:


6 0
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I’m working on 3 and 4 only maybe if I can have some explanation so I can understand and do more of these next week.
guapka [62]

4.b.

Answer:  See below.

Step-by-step explanation:

<h2><u>For the equation f(x) = 2x</u></h2>

3.a.  f(6) means use x = 6 in the equation f(x) = 2x

so f(6) would be f(6)= 2(6)

<u>f(6) = 12</u>

3.b.  f(-11) = 2(-11)

<u>f(-11) = -22</u>

3.c.  f(2.75) = 2(2.75)

<u>f(2.75) = 5.5</u>

3.d.  This is turned around.  We are told f(x)=20, so what would x need to be for f(x) to be 20?  Since f(x) = 2x, we can say 20 = 2x.  Therefore x = 10

f(10) = 20

<u>The rest of (3) are solved in the same fasion.h</u>

<u></u>

<h2><u>For the equation  f(x)= 5x+50</u></h2>

4.a.  f(7) = 5(7)+50

<u>f(7) = 85</u>

4.b. f(-12)

  f(-12) = 5*(-12)+50

<u>f(-12) = -60</u>

<u></u>

Continue in the same fashion for these types of problems.

7 0
2 years ago
What is a solution to x ≥ 20
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Answer:

Step-by-step explanation:

Any number equal to or greater than 20 is a solution.  22 would be a solution.

4 0
3 years ago
Solve the inequalities for x, and match each solution to its number line graph.
rusak2 [61]

Answer:

Do you still need help??

Step-by-step explanation:

3 0
3 years ago
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