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Helen [10]
2 years ago
10

Emma has addressed seven invitations to her

Mathematics
2 answers:
Firlakuza [10]2 years ago
8 0

Answer:

12

Step-by-step explanation:

This can be solved by working backwards.

7 is one more than half the number of invitations.

Subtract 1.  6 is half the number of invitations.

Double.

12 is the full number of invitations.

Algebra (if you must!):

x = number of invitations

x/2 + 1 = 7

Subtract 1.

x/2 = 6

Multiply by 2.

x = 12

sweet-ann [11.9K]2 years ago
4 0

Answer:

12

Step-by-step explanation:

7-1=6

6x2=12

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Enter the letters of the points that lie on the line $y = \frac{1}{2} x + 3.$[asy]unitsize(0.4 cm);pair A, B, C, D, E, F, G, H,
igor_vitrenko [27]

The points that lie on the line are C(-4, 1), E(-6, 6) and  I(2, 4)

Given the equation of a line expressed as y=\frac{1}{2}x + 3

We need to find which of the points from A to J lies on the line.

To do that, we will substitute the x-coordinate point into the equation to see if we are going to get the y-coordinate

For the coordinate C(-4, 1)

when x = -4

y = 1/2(-4) + 3

y = -2 + 3

y = 1

This shows that the point C(-4, 1) is on the line

For the point E(6, 6)

when x = 6

y = 1/2(6) + 3

y = 3 + 3

y = 6

This shows that the point E(-6, 6) is on the line

For the point I (2, 4)

when x = 2

y = 1/2(2) + 3

y = 1 + 3

y = 4

This shows that the point I(2, 4) is on the line

This shows that the points that lie on the line are C(-4, 1), E(-6, 6) and  I(2, 4)

Learn more here: brainly.com/question/16131866

3 0
3 years ago
Adding two negative numbers together always results in a negative number." Is this statement True or False?
Licemer1 [7]

Answer:

true because when you add negatives it's the same as subtracting, so, you're just going further negative

3 0
3 years ago
When a scientist conducted a genetics experiments with​ peas, one sample of offspring consisted of 941941 ​peas, with 715715 of
Nataliya [291]

Answer:

  a) 0.2562

  b) no

Step-by-step explanation:

a) A binomial probability calculator or app can tell you that for bin(941, 0.75) the probability P(X ≥ 715) ≈ 0.2562

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b) "significantly high" usually means the probability is less than 5%, often less than 1%. An event that occurs when its probability is almost 26% is not that unusual.

4 0
3 years ago
Find three consecutive even integers for which -4 times the sum of the first and third is 192
Elena-2011 [213]

Answer:

  1. -26
  2. -24
  3. -22

Step-by-step explanation:

<u>Let x be the smallest number (first)</u>

<u>Let (x + 2) be the second number (second)</u>

<u>Let (x + 4) be the greatest number (third)</u>

<u>Set equation according to the given information</u>

-4 [x + (x + 4)] = 192

<u>Simplify parentheses</u>

-4 [x + x + 4] = 192

-4 [2x + 4] = 192

<u>Expand bracket and apply the distributive property</u>

(-4) · 2x + (-4) · 4 = 192

-8x - 16 = 192

<u>Add 16 on both sides</u>

-8x - 16 + 16 = 192 + 16

-8x = 208

<u>Divide -8 on both sides</u>

-8x / -8 = 208 / (-8)

\boxed{x=-26}

<u>Find the value of the second term</u>

x + 2 = (-26) + 2 = \boxed{-24}

<u>Find the value of the third term</u>

x + 4 = (-26) + 4 = \boxed{-22}

Hope this helps!! :)

Please let me know if you have any questions

6 0
3 years ago
What is 23% turned into a decimal
weeeeeb [17]
The answer is 0.23 if the percentage is out of 100
4 0
4 years ago
Read 2 more answers
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