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Aneli [31]
3 years ago
5

April had

Mathematics
1 answer:
Bumek [7]3 years ago
3 0
First thing First. You must find have a common denominator. If you want to find it then you do this

3: 3 6 9 12 15 18 21
7: 7 14 21 28

Once you found a number they have in common (21) You do this next

3/7 * 3/3 = 9/21
2/3 * 7/7 = 14/21

Now the next thing you do is subtract your numerators but not the denominators

14-9=5

5/12

you cant simplified so your done! Hope this helps!!!!  <span />
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A pair of dice was rolled 50 times and the results are in the accompanying table. From these results, calculate an
Snezhnost [94]

Answer:

Step-by-step explanation:

5 0
3 years ago
What is the value of z?
babymother [125]

Answer:

Step-by-step explanation:

<u>Item 1:</u>

Discount = Original price - discount price

             = 22.50 - 13.50

             = $ 9

Discount percentage = \frac{9}{22.50}*100\\\\

                                   = 40%

Discount percentage = 40%

Tax = 14.31 - 13.50 = $0.81

Tax% = \frac{0.81}{13.50}*100\\\\  = 6%

Tax percentage = 6%

<u>Item 2:</u>

Tax = 6% of 16.20

      = 0.06 * 16.20

      = 0.972

Tax = $ 0.97

Total price (including tax )= 16.20 + 0.97 = $ 17.17

         x = $ 17.17

<u>Item 3:</u>

Discount  = 40% of 32.50

                        = 0.4 * 32.50

                        = $ 13

y =  32.50 -13

y = $ 19. 50

Tax = 6% of 19.50

       = 0.06 * 19.50

       = 1.17

z = 1.17 + 19.50

Z  =$ 20.67

                   

5 0
3 years ago
What are the angles measures of x and y
Gala2k [10]

The answer should be 110 degrees.

This is assuming that the lines are parallel, which they should be.


Best of luck.

6 0
3 years ago
Read 2 more answers
Solve the equation 5+7 | 2x-1 | = -44
dlinn [17]

The easy part is isolating the absolute-value term:

5 + 7 |2<em>x</em> - 1| = -44

7 |2<em>x</em> - 1| = -49

|2<em>x</em> - 1| = -7

Remember that the absolute value function returns a positive number that you can think of as the "size" of that number, or the positive distance between that number and zero. If <em>x</em> is a positive number, its absolute value is the same number, |<em>x</em>| = <em>x</em>. But if <em>x</em> is negative, then the absolute value returns its negative, |<em>x</em>| = -<em>x</em>, which makes it positive. (If <em>x</em> = 0, you can use either result, since -0 is still 0.)

The important thing to take from this is that there are 2 cases to consider: is the expression in the absolute value positive, or is it negative?

• If 2<em>x</em> - 1 > 0, then |2<em>x</em> - 1| = 2<em>x</em> - 1. Then the equation becomes

2<em>x</em> - 1 = -7

2<em>x</em> = -6

<em>x</em> = -3

• If 2<em>x</em> - 1 < 0, then |2<em>x</em> - 1| = - (2<em>x</em> - 1) = 1 - 2<em>x</em>. Then

1 - 2<em>x</em> = -7

-2<em>x</em> = -8

<em>x</em> = 4

3 0
3 years ago
Can someone please help me with one or both of these problems, I'm so confused but the assignment is due soon!!
Firlakuza [10]

Answer:

First question: 1270

Second question: 4080

Step-by-step explanation:

Here is the Sum formula:

S_{n}=\frac{n}{2}(a_{1}+a_{n})

where n represents the number of terms, and

a_{1} is the first term, and a_{n} is the last term.

Let's look at the first question:

k is the first number of the sequence, 5, and 20 is the last number of the sequence.

You can find the first term (a_{1}) by substituting k in the formula for 5.

3(5)+26=15+26=41

You can find the last term (a_{n}) by substituting k for 20 into the formula.

3(20)+26=60+26=86

now, knowing there are 20 terms in total, a_{1} =41, and a_{n} =86, we can put it into the Sum formula.

S_{20}= \frac{20}{2} (41+86)

S_{20}= \frac{20}{2} (127)

S_{20}= 10 (127)

S_{20}= 1270

Answer to the first question: 1270

Next question:

Even though the given formula uses n as the variable, this problem works the same way as the previous one.

Substitute n in the formula for k, which is 5 to find the first term: 14(5)+29=99

Substitute 20 for n to find the second term: 14(20)+29=309

Now assemble the Sum formula:

S_{20}= \frac{20}{2} (99+309)

S_{20}= \frac{20}{2} (408)

S_{20}= 10(408)

S_{20}=4080

Answer to the second question: 4080

5 0
2 years ago
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