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ioda
4 years ago
13

Solve the following equation, and check your solution. Be sure to show all work {please :)}

Mathematics
1 answer:
oksano4ka [1.4K]4 years ago
8 0

Answer:

n=250

Step-by-step explanation:

So we have the equation:

-17+\frac{n}{5}=33

And we need to solve for n.

First, let's isolate the n variable. To do so, let's add 17 to both sides:

(-17+\frac{n}{5})+17=(33)+17

The left side cancels. Add on the right:

\frac{n}{5}=50

Now, let's multiply both sides by 5:

5(\frac{n}{5})=5(50)

The left side cancels again. Multiply on the right:

n=250

So, our solution is 250.

And we're done!

Checking:

Substitute 250 back for n:

-17+\frac{250}{5}\stackrel{?}{=}33

Divide first:

-17+50\stackrel{?}{=}33

We can rewrite this as:

50-17\stackrel{?}{=}33

Subtract:

33\stackrel{\checkmark}{=}33

This is indeed correct!

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URGENT❗❗❗❗❗❗Elina is gathering up change she has saved. She has a total of $2.60. All of her change is in either nickles, dimes,
oee [108]

Let the number of nickels be = x

Let the number of dimes be = d

Let the number of quarter be = n

Given is, she has twice as many dimes as quarters

d=2n or n = 0.5d

She has two less quarters than nickles.

n= x-2 or

x= n+2

Total values of coins is = $2.60

0.05x+0.10d+0.25n=2.60

Now replace x with (n+2) and d with 2n

0.05(n+2)+0.10(2n)+0.25n=2.60

0.05n+0.10+0.20n+0.25n=2.60

0.50n+0.10=2.60

0.50n=2.50

n=5

Now x=n+2 ; x=5+2 = 7

d=2n ; d=2(5) = 10

Hence, Elina has 7 nickels, 10 dimes and 5 quarters.

3 0
3 years ago
Please help !!!!! dont have that much time <br><br><br><br>​
lianna [129]

Answer:

76.0

Step-by-step explanation:

3 0
3 years ago
7tq=? <br><br> Hint: t=5 and q=4
s344n2d4d5 [400]

Answer: 140

Step-by-step explanation:

Given t = 5 snd q = 4, tq = 5x4= 20

7tq will be: multiply the value of tq by 7

=7× 5×4

7 × 20 = 140

I hope this is clear.

8 0
3 years ago
Find the measure of ZDCF. C F mDF = 49 G E MEG = 127 Find the measure of angle DCF​
AleksandrR [38]

Answer:

Step-by-step explanation:

Comment

If two secants intersect outside a circle (as these two do) then the angle at which they meet is 1/2 the difference between the intersected arcs. Put much simpler <DCF = 1/2 (arc EG - arc DF)

Givens

Arc EG = 127

Arc DF = 49

Solution

<DCF = 1/2(127 - 49)

<DCF = 1/2(78)

<DCF = 39

8 0
2 years ago
Find (a) the mean, (b) the median, and
VikaD [51]

Answer:

Mean = 33+ 22+35+27+23+35+27+36 = 238/8 = 29.75

Median = 27+23 = 50/2 = 25

Mode = 35

Range = 36 - 22 = 14

Step-by-step explanation:

Stay Blessed

5 0
3 years ago
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