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UNO [17]
3 years ago
6

2x+y=7 NEED HELP WITH THIS EQUATION

Mathematics
2 answers:
gogolik [260]3 years ago
6 0

x=\frac{7-y}{2}

y=7−2x

nevsk [136]3 years ago
4 0

Answer:

y=2x+7

Step-by-step explanation:

2x+y+-2=7+-2

y=2x+7

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a rectangle's length is three more than two times its width if the perimeter of a rectangle is 66 ft what is the measurement of
Lemur [1.5K]

Answer:

The measure of the length is 23\ ft

Step-by-step explanation:

Let

x-----> the length of rectangle

y-----> the width of rectangle

we know that

The perimeter of rectangle is equal to

P=2(x+y)

P=66\ ft

so

66=2(x+y)

Simplify

33=x+y -----> equation A

x=2y+3 ----> equation B

Substitute equation B in equation A and solve for y

33=(2y+3)+y

2y+y=33-3

3y=30

y=10\ ft

Find the value of x

x=2(10)+3=23\ ft

8 0
3 years ago
Read 2 more answers
Write an inequality for ten less than a number is at least 5
alexandr1967 [171]

Step-by-step explanation:

Let the number be x

so,

10 - x ≥ 5

Hope it helps ya

5 0
3 years ago
Help! I need to know if 7√3+2√9 is rational or irrational
Brums [2.3K]

Answer:

Irrational

Step-by-step explanation:

7\sqrt{3}+2\sqrt{9}= \\\\7\sqrt{3}+2(3)= \\\\6+7\sqrt{3}

Therefore, this is irrational. Hope this helps!

3 0
4 years ago
Please help with this
ivolga24 [154]

the value of x is 50 because the degrees of a triangle will always be 180 degrees


3 0
4 years ago
Can someone help me understand what I did wrong with these two
7nadin3 [17]
-3/4 is a rational number because it can be written as a whole number over 100 (-75/100)
Square roit 2 is less than square root 3 as 2 is a smaller number than 3
17 is close to 16, which has an exact square root of 4, so square root 17 rounded to the nearest whole number is 4
4 0
3 years ago
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