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Anestetic [448]
3 years ago
5

What is the value of x? 6 7 8 9

Mathematics
2 answers:
jarptica [38.1K]3 years ago
6 0

Answer:

7

Step-by-step explanation:

just took the test on edg2020

Dennis_Churaev [7]3 years ago
5 0

Answer:

7

Step-by-step explanation:

on edg

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Using elimination (add or sub) find the solution to the following system of equations 5x+ 3y=9 2x -3y=5
Levart [38]
5x+3y=9
2x-3y=5

5x+2x=9+5
7x=14
14/7x= 2
x=2

sub it in so you get y

5(2)+3y=9
10+3y=9 (-10 to get rid of it)
3y=-1
3y/-1= - 1/3

x= 2 y= - 1/3
8 0
3 years ago
Measurement maths!!<br> If good with area please help
Gennadij [26K]

Answer:

a. 15/2 or 7.5 sqcm

b. 20 sqcm

Step-by-step explanation:

Area of a triangle is (base × height)/2.

A = (5×3)/2

A = 15/2 = 7.5cm^2

The area of a parallelogram is just base × height, but yoy have to choose wisely what is the base and height. These two measurements must be perpendicular. So the 4 and 5 are perpendicular. We won't use the measurement 6cm at all.

Area = 4×5

Area = 20 sqcm

4 0
2 years ago
I need help rn PLEASEEE heheheh
snow_lady [41]
  • Diameter = 51 cm
  • Radius (r) = 51 cm ÷ 2 = 25.5 cm
  • π = 3.14
  • Circumference
  • = 2πr
  • = 2 × 3.14 × 25.5 cm
  • = 160.14 cm
  • Area of a circle
  • = πr^2
  • = 3.14 × (25.5)^2 cm^2
  • = 3.14 × 25.5 × 25.5 cm^2
  • = 2041.785 cm^2

Hope you could understand.

If you have any query, feel free to ask.

4 0
2 years ago
Here you gooooooooooooo
Travka [436]

Answer:

30

Step-by-step explanation:

there are 3 parts to form that 90 degree angle

5 0
3 years ago
Lana makes $8 an hour plus $12 an hour for every hour of overtime. Overtime hours are any hours more than 40 hours for the week.
Ierofanga [76]

Answer:

A:  W = 8x

B:  12y + 320

C:  44

Step-by-step explanation:

A:  Lana can make $8 an hour.

W = 8x

B:  She makes $12 per hour for every hour of overtime.  This means that she already worked 40 hours with regular pay.  She has already made $320.

40 × $8 = $320

S = 12y + 320

C:  Plug in the amount Lana earned into the second equation.  The second equation will account for pay from both regular and overtime hours.

S = 12y + 320

368 = 12y + 320

368 - 320 = (12y + 320) - 320

48 = 12y

48/12 = (12y)/12

4 = y

y = 4

Lana worked 4 hours of overtime and 40 hours of regular hours.  In total, she worked 44 hours.

4 + 40 = 44

4 0
3 years ago
Read 2 more answers
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