Solve the proportion of x. 6/10=9x

Answers

Answer 1

Answer: I'm guessing since it's a proportion that you meant 6/10 = 9/x, so in that case.

6 9
---- = --- You have to cross-multiply.
10 x

(6x) = 90 Then divide by 6 normally.

x = 15

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A cell phone company has a basic monthly plan of $40 plus $0.45 for any minutes used over 700. Before receiving his statement, John saw he was charged a total of $48.10. Write and solve an equation to determine how many minutes he must have used during the month. Show your work and explain your answer

Answers

Ok so we know he used over 700 because he was charged more than 40. Then we take the $8.10 and divide 0.45 into it. This then gives you 18 more minutes. Then add 18 to 700 and you get 718 min.

Which expression is equivalent to 8x-2y+x+x=

Answers

8x-2y+x+x=10x-2y

P.s. I just evaluated the expression 8x-2y+x+x

Finding KLM in this problem, if you could also explain it, that would be nice :)

Answers

The measure of angle KLM is 37°.

Solution:

Given data:

m(ar JN) = 140° and m(ar KM) 66°

To find the angle KLM:

If two secants intersect outside a circle, then the measure of angle formed is one half of the difference of the measures of the intercepted arcs.

$$\Rightarrow\angle KLM=(1)/(2)(m(ar \ JN)-m(ar \ KM))$

$$\Rightarrow\angle KLM=(1)/(2)(140^\circ-66^\circ)$

$$\Rightarrow\angle KLM=(1)/(2)(74^\circ)$

$$\Rightarrow\angle KLM=37^\circ$

The measure of angle KLM is 37°.

3x + 4y divided by 2 when x=7 and y=10

Answers

For this question you can put 7 for x and 10 for y.
Then solve 3x + 4y:
3(7) + 4(10) = 21 + 40 = 61
so now you can divide it by 2:
61/2 = 30.5 :)))
I hope this is helpful
have a nice day

What's the expanded form 310409

Answers

In expanded form, 310409 would be 300000+10000+400+9
Unless you want it as
3*100000+1*10000+4*100+9
Or even
3*10^5+1*10^4+4*10^2+9

Alicia got 60 questions correct on her science test. If she received a score of 75% , how many questions were on the test?????

Answers

so since 60=75%
here's a hack. it's not real math
just find a factor of 100 like 2,4,5,10,20,25, or 50
75=3*25

so 60=3*20
3*20=3*25
divide both sides by 3
20=25%
we know that 25% is 1/4 of 100 so
multiply both sides by 4
80=100%

$x-guestions\ on\ the\ test\n\n75\%\cdotx=60\n\n0.75x=60\ \ \ \ |:0.75\n\nx=80\n\nThere\ were\ 80\ questions\ on\ the\ test.$

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