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MrRa [10]
2 years ago
6

-3 2/7 as an improper fraction

Mathematics
1 answer:
Arte-miy333 [17]2 years ago
5 0

Answer:

30/7

Step-by-step explanation:

There are

7

7

in 1

Therefore in 4 there are

4

×

7

7

=

28

7

Now

4

2

7

=

4

+

2

7

=

28

7

+

2

7

=

30

7

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Car X weighs 136 pounds more than car Z. Car Y weighs 117 pounds more than car Z. The total weight of all three cars is 9439 pou
Aleksandr [31]

Let x, y and z denote the weighs of car X, car Y and car Z, respectively.

We know that car X weighs 136 more than car Z, this can be express by the equation:

x=z+136

We also know that Y weighs 117 pounds more than car Z, this can be express as:

y=z+117

Finally, we know that the total weight of all the cars is 9439, then we have:

x+y+z=9439

Hence, we have the system of the equations:

\begin{gathered} x=z+136 \\ y=z+117 \\ z+y+z=9439 \end{gathered}

To solve the system we can plug the values of x and y, given in the first two equations, in the last equation; then we have:

\begin{gathered} z+136+z+117+z=9439 \\ 3z=9439-136-117 \\ 3z=9186 \\ z=\frac{9186}{3} \\ z=3062 \end{gathered}

Now that we have the value of z we plug it in the first two equations to find x and y:

\begin{gathered} x=3062+136=3198 \\ y=3062+117=3179 \end{gathered}

Therefore, car X weighs 3198 pound, car Y weighs 3179 pounds and car Z weighs 3062 pounds.

4 0
1 year ago
Teeth rented a truck for one day. There was a base fee of $18.95,and there was an additional charge $.99 for each mile driven. K
Marizza181 [45]

Answer:

138 miles

Step-by-step explanation:

You would have to find the difference between $18.95 and $155.57. When you find the total which is $136.62, you would need to divide it by $0.99. That is what will give you the number of miles that Teeth drove.

6 0
3 years ago
Read 2 more answers
In ⊙P, QR≅ST. Which statement must be true? Select all that apply.
den301095 [7]

The true statement about the circle with center P is that triangles QRP and STP are congruent, and the length of the minor arc is 11/20π

<h3>The circle with center P</h3>

Given that the circle has a center P

It means that lengths PQ, PR, PS and PT

From the question, we understand that QR = ST.

This implies that triangles QRP and STP are congruent.

i.e.  △QRP ≅ △STP is true

<h3>The length of the minor arc</h3>

The given parameters are:

Angle, Ф = 99

Radius, r = 1

The length of the arc is:

L = Ф/360 * 2πr

So, we have:

L = 99/360 * 2π * 1

Evaluate

L = 198/360π

Divide

L = 11/20π

Hence, the length of the minor arc is 11/20π

Read more about circle and arcs at:

brainly.com/question/3652658

#SPJ1

5 0
1 year ago
Factorise fully<br>7g - 56​
Kobotan [32]

Answer:

7 (g-8)

Step-by-step explanation:

this is your answer

4 0
2 years ago
Can someone help me with this?
Tanzania [10]

Answer:

ST=8.8

SR=15.5

Step-by-step explanation:

ST is the difference between S and T.

that would be 16.3-7.5=8.8

similarly RT is the difference between S and R

That would be 7.5-(-8)=15.5.

3 0
2 years ago
Read 2 more answers
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