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Kipish [7]
3 years ago
6

Eight times the difference of a number and seventeen is thirty"?

Mathematics
2 answers:
alukav5142 [94]3 years ago
6 0
Let the number be y;
8*(17-y)=30
8*17-8y=30
136-8y=30
-8y=30-136
-8y=-106
y=-106/=8
y=53/4
Y_Kistochka [10]3 years ago
5 0
Difference of a number and 17:   x - 17
eight times that = 8(x - 17)
8(x - 17) = 30

divide both sides by 8
x - 17 = 30/8

x = 30/8 + 17 which is 20.75
You might be interested in
Look at the Hexagon below
Mama L [17]

Answer:

Angle 9: 60°

Angle 10: 30°

Side = radius = 40sqrt(x/3)

Area = [800sqrt(3)]x

Step-by-step explanation:

Total angle in a hexagon:

(6 - 2) × 180

720

Each interior angle:

720/6 = 120

angle 9 = 120/2 = 60

Angle 10 = 60/2 = 30

sin(60) = 20sqrt(x)/r

r = 20sqrt(x) ÷ sqrt(3)/2

r = 40sqrt(x/3)

Side:

sin(30) = ½s/(40sqrt(x/3))

½s = 20sqrt(x/3)

s = 40sqrt(x/3)

Area = (3sqrt(3))/2 × s²

Area = 3sqrt(3)/2 × 1600x/3

Area = [800sqrt(3)]x

4 0
3 years ago
!!!29 POINTS!!!Will give brainlest!!!
Ludmilka [50]
A:16/333 b:16/33 c:12/25
7 0
3 years ago
How do I turn (700)(20) into a distributive property???
Anettt [7]
Look at it this way 1(700)*1(20). can u do it now?
7 0
3 years ago
the average of two numbers is 34 the first number is three times the second number what are the two numbers
tino4ka555 [31]
Hi there!

To solve this problem, we need to set up two equations and use the system of equations to solve.

Let x be the first number.
Let y be the second number.

(x + y) ÷ 2 = 34
x = 3y

Now, we can use substitution to solve.

(3y + y) ÷ 2 = 34
4y ÷ 2 = 34
2y = 34
y = 17

Now, we plug the value of y in the equation to solve for x.

x = 3*17
x = 51

Hope this helps!
7 0
3 years ago
Between wich two integers is the value of √21
RSB [31]
4 and 5
4^2= 16
5^2= 25
Square root of 21= 4.5
5 0
3 years ago
Read 2 more answers
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