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Ksivusya [100]
3 years ago
7

Evaluate ab – 0.55 when a 1 and b = 5.

Mathematics
1 answer:
katrin [286]3 years ago
5 0
1(5)-0.55=
5-0.55= 4.45
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2x+3y=-12<br> 2x+t=-16<br> X=. Y=<br> Help plz
8090 [49]

<u>To make this problem solvable, I have replaced the 't' in the second equation for a 'y'.</u>

Answer:

<em>x = -9</em>

<em>y = 2</em>

Step-by-step explanation:

<u>Solve the system:</u>

2x + 3y = -12       [1]

2x + y = -16       [2]

Subtracting [1] and [2]:

3y - y = -12 + 16

2y = 4

y = 4/2 = 2

From [1]:

2x + 3(2) = -12

2x + 6 = -12

2x = -18

x = -18/2 = -9

Solution:

x = -9

y = 2

8 0
3 years ago
Can anyone help me I did it I'm just checking :)
lukranit [14]

Answer:

<h2>x = 12</h2><h2 />

Step-by-step explanation:

2x + 5 = 3x - 7

5 + 7 = 3x - 2x

12 = x

8 0
3 years ago
Which statements are true? Check all that apply. TIMED! WILL GIVE BRAINLIEST!
gladu [14]

Answer:

The 1st, 3rd, 4th, 5th are correct

7 0
3 years ago
Plz help me out a bit :(<br> which one do you think it is?
Anna [14]
C. 9^4
when dividing with exponents, i usually just look at the exponents and subract them so i did 12-8 for this problem
8 0
3 years ago
Read 2 more answers
Answer 29 to 33......
Sindrei [870]
2y=x
30:174.24
31:25
32:2
33:16
hope this helps!!!!!

6 0
3 years ago
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