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3 years ago

What is the sum of x + 9?

1 answer:

5 0

So 30/48=15/(x+9)
this could be easily solved by recognizing the proportion (the other way is usiing full algebra and doing multiply both sides by 48(x+9) and then divide both sides by 30 then subtract 9)
30 is 2 times of 15
therefor 48 is 2 times of (x+9)
48=2 times (x+9)
divide both sides by 2
24=x+9
subtract 9
15=x

x=15

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I need help................

FrozenT [24]

Answer:

a) $( $\frac{7200}{m}$ )

b) $(20m + 7080 - 43200/m)

d) m= 36 or m= -60

e) $200

Step-by-step explanation:

Please see the attached pictures for full solution.

4 0

3 years ago

If m is the midpoint of segment JK, JM equals 7x minus 32, and MK equals 89 minus 4x, what is MK?

KonstantinChe [14]

Step-by-step explanation:

Imagine this segment, given that m is the midpoint of segment JK...

J________M________K

JM = 7x-32 MK = 89 - 4x (given)

If m is the midpoint, then JM and MK are the same lengths (equal to each other). We can use that to first find what <em>x</em> is.

$7x -32 = 89 - 4x\\$

Steps to find x (we have to get x by itself):

$7x - 32 + 4x = 89 - 4x +4x$

$11x -32 = 89$

$11x -32 +32 = 89 +32$

$11x = 121$

$\frac{11x}{11} = \frac{121}{11}$

$x=11$ (we haven't found the answer yet! we only found x)

Now that we found x, we can find segment MK. Now we know that:

$MK = 89 - 4x$

$x= 11$

Let's plug x into the equation:

$MK = 89 - 4(11)\\MK = 89- (44)\\MK = 45$

Answer: $MK= 45$

4 0

3 years ago

Finley makes one batch of orange paint using 5 years of yellow paint and beavers in red paint if there's 15 L of rep and how man

stira [4]

Given :

Finley makes one batch of orange paint using 5 L of yellow paint.

To Find :

How many batches of orange paint she can make using 15 L of yellow paint.

Solution :

We need to find how many batches of orange paint she can make using 15 L of yellow paint.

Now , 1 batch requires 5 L of yellow paint .

So , 15 L of paint will make 3 batches .

Let , number of batches be N .

$N=1 \times\dfrac{15}{5}\ batches\\\\N=3\ batches$

Therefore, number of batches produced is 3 .

Hence, this is the required solution .

4 0

3 years ago

Kirsten and Molly are on a 3-day bike ride. The entire route is 156 miles. On the first day they biked 64 miles, and on the seco

timama [110]

The distance that Kirsten and Molly need to bike on their third day is obtained by subtracting the sum of the distances they have traveled after two days from the length of the entire route.

distance left = 156 miles - (64 miles + 45 miles)
= 47 miles
Thus, Kirsten and Molly need to bike 47 miles on their third day.

3 0

3 years ago

A sequence is defined by the recursive function f(n+1)= f(n) -2. If f(1) =10. what is f(3)?

sweet [91]

Answer:

f(3) is 30

Step-by-step explanation:

8 0

4 years ago