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Nutka1998 [239]
3 years ago
11

June father is six times as old as June the sum of their age is no less than 77 what is the youngest age June can be

Mathematics
1 answer:
alexgriva [62]3 years ago
6 0
Let June's age be
x \: years

Then his father is
6x \: years

The sum of their ages is no less than 77 means,
x + 6x \geqslant 77
7x \geqslant 77
x \geqslant 11
The youngest age June can be is 11
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Okay so I'm working on solving equations<br><img src="https://tex.z-dn.net/?f=%20-%2015x%20%2B%205%20%3D%20%20-%2010x%20%2B%2025
Ksenya-84 [330]

Answer:

x = -4

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

Step-by-step explanation:

<u>Step 1: Define</u>

-15x + 5 = -10x + 25

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Add 15x on both sides:                    5 = 5x + 25
  2. Subtract 25 on both sides:              -20 = 5x
  3. Divide 5 on both sides:                   -4 = x
  4. Rewrite:                                             x = -4
8 0
2 years ago
What 2 numbers should be used to find 231 - 198 using the 10 method for subtracting quickly in your head?
Airida [17]

Answer: "Count 2 and then count 31 more."

Step-by-step explanation:

We have the equation:

231 - 198

Now, the negative number is kinda ugly, so i will write it as:

200 - 2 = 198

Is a lot easier work with 200 and 2, than with 198.

Then the equation is now:

231 - (200 - 2)

And the left number we also have a "200", so it can be written as:

200 + 31 = 231

As this is a sum, we can ignore the parentheses.

200 + 31 - 200 + 2

31 + 2

Then the correct option is:

"Count 2 and then count 31 more."

4 0
3 years ago
find the sum of the interior angles of the following polygons.1)Pentagon. 2)hexagon. 3)heptagon. 4)octagon.​
sergejj [24]

Answer:

Sum of interior angles of polygon = (n-2)*180

1) Pentagon:

  • (5-2)*180= 540

2)Hexagon:

  • (6-2)*180= 720

3) Heptagon:

  • (7-2)*180= 900

4) Octagon:

  • (8-2)*180= 1080
3 0
3 years ago
Twice m decreased by 11
iogann1982 [59]

Answer:

2m - 11

Step-by-step explanation:

twice m = 2m

decreased by 11 = -11

6 0
2 years ago
Lisa made a big apple pie for dinner. Each guest wanted 1/8th of the pie. How many guests could lisa serve? ​
Tresset [83]

Answer: she could serve 8 people

Step-by-step explanation:

each guest wanted 1/8 so first she would have to make it into 8 equal parts then give each guest 1 slice of pie.

6 0
3 years ago
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