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Mazyrski [523]
3 years ago
12

Solve. Show all your work. a) -3x+2 = 5 b) }(4x – 4) = 7 Help help help please

Mathematics
2 answers:
Doss [256]3 years ago
6 0
A) x = -1
b) x = 11 / 4

a explanation)
-3 x + 2 = 5
-3 x + 2 - 2 = 5 - 2
-3 x = 5 - 2
-3 x = 3
-3 x / -3 = 3 / -3
x = 3 / -3
x = -1

b explanation)
4 x - 4 = 7
4 x - 4 + 4 = 7 + 4
4 x = 7 + 4
4 x = 11
4 x / 4 = 11 / 4
x = 11 / 4
Reptile [31]3 years ago
3 0

Answer:

A) x=-1

B) x=11/4

Step-by-step explanation:

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Two sides of a triangle have lengths 18cm and 40cm describe the possible lengths of the third side
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Answer:

Step-by-step explanation:

a taingle adds up to 180 degrees if that helps

5 0
3 years ago
Find the total surface area.
Ede4ka [16]

Hey love! <3

Answer:

The right answer is A = 49.6 π ft^2

Step-by-step explanation:

<em><u>(Let pi = 3.1415926535898)</u></em>

<em>The formula for calculating the surface area of a cylinder is A=2πrh+2πr^2</em>

<em>So if r = 4 ft</em>

<em>and h = 2.2 ft</em>

<em>A= 2π(4)(2.2)+2π(4)^2</em>

<em>Once we've plugged in our formulas our final surface area is A =</em><em> 49.6 π ft2</em>

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8 0
3 years ago
Read 2 more answers
Q # 7 please help to solve
Neko [114]
The fourth choice - 5/104.

In one cube, there are 3 even numbers - 2,4,6. For two cubes, the total probability is 36.
   3*3 / 36 = 9/36

For letters, there are five vowels over 26 letters = 5 / 26

Multiply the two probabilities to get the probability of rolling two even numbers and selecting one of the vowels.
   9/36 * 5/26 = 5/104
   
6 0
3 years ago
Your family eats at Pizza Hut for dinner. The pizza is $12.99. An order of bread sticks is $5.99. Four drinks were purchased for
Anton [14]

Answer:

$22.87

Step-by-step explanation:

12.99+5.99+2.20=21.18

22.18x.08=1.6944

1.69+22.18=22.87

7 0
3 years ago
What is the value of x in the equation 2x+3y=36 wheh y=6
vova2212 [387]
X is 9
2x + 3y = 36 \\ 2x + 3(6) = 36 \\ 2x + 18 = 36 \\ 2x = 36 - 18 = 18
x =  \frac{18}{2}  = 9






good luck
4 0
3 years ago
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