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svetoff [14.1K]
3 years ago
13

Plz give right answers,and a SIMPLE explanation, thnx! :)

Mathematics
2 answers:
Greeley [361]3 years ago
4 0

Answer:

10

Step-by-step explanation:

so do parentheses first so 12+8 is 20

1/2 of 20 is 10

ehidna [41]3 years ago
3 0

Answer:

  • 10

Step-by-step explanation:

<u>Given</u>

  • 1/2×(12 + 8)

<u>Step 1, complete the parenthesis:</u>

  • 12 + 8 = 20

<u>Step 2, perform multiplication:</u>

  • 1/2*20 = 20/2 = 10

Answer is 10

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When will the equation xn = c, where c is a whole number, have two solutions? Explain.
Kazeer [188]
If x=n then it would have 2 solutions because it would be x^2 = c which has a positive and negative solution but idk if that is what you are asking for
3 0
3 years ago
fill in the empty spaces ANSWERS 1 21 -7 7 6 24 -1 .5 2.4(5h+10)-3=27 12h+__-3=27 12h+__=27 12h=__ h=__
dalvyx [7]

Answer:

h = 1/2

Step-by-step explanation:

Step 1: Write equation

2.4(5h + 10) - 3 = 27

Step 2: Distribute

12h + 24 - 3 = 27

Step 3: Combine like terms

12h + 21 = 27

Step 4: Subtract 21 on both sides

12h = 6

Step 5: Divide both sides by 12

h = 6/12

Step 6: Simplify

h = 1/2

4 0
3 years ago
can someone help me with this I have to do like 18 other questions so if you can help me with those I would appreciate it!
GenaCL600 [577]

Answer:

see below

Step-by-step explanation:

1.)

(0, 4)

(1, 7)

\frac{7-4}{1-0} = 3

y = 3x + b

(4) = 3(0) + b

b = 4

y = 3x + 4

Rate of change: 3       initial value: 4

2.)

(0, -5)

(1, -3)

\frac{-3-(-5)}{1-0} = 2

y = 2x + b

(-5) = 2(0) + b

b = -5

Rate of change: 2        initial value: -5

4 0
2 years ago
What is the relationship between the ratios?
salantis [7]

Answer: proportional

Step-by-step explanation: cuz i took the test and i was correct

4 0
2 years ago
Which line represents the direct variation equation y equals 1/2 x
damaskus [11]

Answer:

line c

Step-by-step explanation:

The graph representing a direct variation equation always passes through the origin. This could be graphs (a) or (c)

given y = \frac{1}{2} x

with slope = \frac{1}{2}

Since graph (a) slopes down from left to right it's slope is negative

Hence it is not graph (a) as the slope given in the equation is positive.

Hence the required graph is (c)



6 0
3 years ago
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