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GenaCL600 [577]
2 years ago
15

the difference of two numbers is 9 The larger number is 6 less then twice the smaller number. gind the number

Mathematics
2 answers:
solong [7]2 years ago
7 0
The numbers are 15 and 24
KonstantinChe [14]2 years ago
4 0
Hi there!

To solve this problem, we need to set up two equations.

Let x equal the larger number.
Let y equal the smaller number.

x - y = 9
x = 2y - 6

Those are our two equations ^.

Since we know that x is equal to 2y - 6, we can plug the value of x into the equation x - y = 9 and find y.

x - y = 9
x = 2y - 6

2y - 6 - y = 9
2y - y - 6 = 9
y - 6 = 9
y = 9 + 6
y = 15

Now, we do the same to the value of y - plug it into the equation - and solve for x:

y = 15
x - y = 9
x - 15 = 9
x = 9 + 15
x = 24

So, the numbers are 24 and 15.

Hope this helps!
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Suppose lines EF and GH are reflected over the line Y equals X to form the lines JK and LM which statement would be true about t
katrin [286]

Answer:

A) JK and LM will be parallel to each other.

Step-by-step explanation:

On reflection on y=x line the x co-ordinate changes with y co-ordinate and y co-ordinate changes with x co-ordinate

(x,y)\rightarrow (y,x)

Points on line EF

(0,6) , (-5,-2)

On reflection of this line on y=x the new points we get for line JK are

(6,0),(-2,-5)

Points on line GH

(-4,9),(-9,1)

On reflection on y=x line the new points we get for line LM are

(9,-4),(1,-9)

Slope of line JK

m=\frac{y_2-y_1}{x2-x1}\\m=\frac{(-5)-0}{(-2)-6} \\m=\frac{-5}{-8}=\frac{5}{8}

Slope of line LM

m=\frac{y_2-y_1}{x2-x1}\\m=\frac{(-9)-(-4)}{1-9} \\m=\frac{-9+4}{-8}=\frac{-5}{-8}\\m=\frac{5}{8}

For two line to be parallel, their slopes will be same.

m_{JK} =\frac{5}{8} , m_{LM}=\frac{5}{8}

Since slopes of lines JK and LM are same therefore we can say that these are parallel to each other.

5 0
3 years ago
If VT=2,what is the length of PT?
marusya05 [52]

Step-by-step explanation:

\underline{ \underline{ \text{Given : }}}

  • Perpendicular ( P ) = VT = 2
  • Base ( b ) = PT
  • \theta =  \tt{60 \degree}

\underline{ \underline{ \text{Solution}}} :

\tt{ \tan(60 \degree)  =  \frac{perpendicualar}{base}}

⟶ \tt{ \sqrt{3}  =  \frac{2}{PT}}

⟶ \tt{ \sqrt{3}  \: PT= 2}

⟶ \tt{PT =  \frac{2}{ \sqrt{3}} }

⟶ \tt{PT= \boxed{\tt{ \frac{2 \sqrt{3} }{{3} }}}}

Hope I helped ! ♡

Have a wonderful day / night ! ツ

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6 0
3 years ago
Evaluate 0.3 + y/2 when y = 10 and z =5
Vladimir79 [104]

Answer:

0.3*10+10/5

PEMDAS (left to right)

3+2

5

Step-by-step explanation:

5 0
2 years ago
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Answer:I think it’s a,c,e

Step-by-step explanation:

4 0
3 years ago
A serving of rice is 1/3 of a cup. How many servings are there in a 2 1/3-cup bag of rice?
iogann1982 [59]

Answer:

7

Step-by-step explanation:

each cup is 1/3 so divide 2 1/3 by 1/3 to get 7 cups

hope this helps

6 0
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