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MakcuM [25]
3 years ago
13

Two-thirds of Tyrone's books are mystery novels. Tyrone has 42 books How many mystery novels does he have ?

Mathematics
1 answer:
Bezzdna [24]3 years ago
3 0
2/3 times 42 books = 28 books
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Find the value of x and y that satisfy both equalities x/5=y/3 and 12/y=4/5 HURRY!!!!
Vika [28.1K]

x=25,y=15 Not to sure abt this answer but I think I got it

7 0
3 years ago
Solve 13 - 2x &gt; 21<br>x&gt;-4<br>x &gt; -17<br>x&lt; -17<br>x&lt;-4​
kherson [118]

Answer:

x>-4

Step-by-step explanation:

13-2x > 21

-13 -13

-2x >8

(-2x)/(-2) >(8)/(-2)

x>-4

8 0
3 years ago
For the following system, if you isolated x in the first equation to use the substitution method, what expression would you subs
alekssr [168]

Answer:

x=2y+6

Step-by-step explanation:

So we have the system:

-x+2y=-6\\3x+y=8

If we isolate the x-variable in the first equation:

-x+2y=-6

Subtract 2y from both sides:

-x=-6-2y

Divide both sides by -1:

x=2y+6

Therefore, we would substitute the above into the second equation:

3x+y=8\\3(2y+6)+y=8

The answer is 2y+6

Further notes:

To solve for the system, distribute:

6y+18+y=8

Simplify:

7y+18=8

Subtract:

7y=-10

Divide:

y=-10/7\approx-1.4286

Now, substitute this value back into the isolated equation:

x=2(-10/7)+6\\x=-20/7+42/7\\x=22/7\approx3.1429

3 0
3 years ago
Read 2 more answers
Alexander is building a rectangular pen in his backyard for his dog. The pen will have a length of 13 feet and a width of 2x fee
Drupady [299]

4x+26

Step-by-step explanation:

to buy fencing, you need to find the perimeter of the pen. The perimeter is found by adding all sides together.

So, 13+13+2x+2x=4x+26

5 0
3 years ago
Select the two statements that are true about the equation −10=60(−40). A. The line has a slope of 10. B. The line has a slope o
Damm [24]

Complete question :

Select the two statements that are true about the equation y−10=60(x−40)

Answer:

m = 60

One point on the line is (40, 10)

Step-by-step explanation:

Given the equation :

y−10=60(x−40)

Comparing the equation with the point slope equation formula :

y - y1 = m(x - x1)

Where, x1 and y1 are points on the line

m = Slope

From here, we can deduce that:

y1 = 10 ; x1 = 40 and m = 60

(x1, y1) = (40, 10)

m = slope = 40

3 0
3 years ago
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