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2 years ago

A necklace chain cost $100,00. Beads cost $20,00 each. You spend a total of

Mathematics

2 answers:

raketka [301]2 years ago

7 0

6 beads. Subtract 100,000 from 220,000 and divide your answer by 20,000

Sindrei [870]2 years ago

3 0

Answer:

Step-by-step explanation:

220-100=120, 120/20=6

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What is the value of 4x - 7 when x = 4 1 9 16 23

inn [45]

Answer:

(4×4)_7

16_7

=9 as the answer

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2 years ago

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Which polynomial expression represents a sum of cubes? (6 – s)(s2 + 6s + 36) (6 + s)(s2 – 6s – 36) (6 + s)(s2 – 6s + 36) (6 + s)

Nadusha1986 [10]

Answer:

Option 3 is correct that is $(6+s)(s^2-6s+36)$

Step-by-step explanation:

We have general formula for sum of cube which is

$a^3+b^3=(a+b)(a^2+b^2-ab)$

Here, we have a=s and b=6

on substituting the values in the formula we will get

$6^3+s^3=(6+s)(s^2+6^2-6s)$

After simplification we will get

$6^3+s^3=(6+s)(s^2+36-6s)$

After rearranging the terms we will get

$6^3+s^3=(6+s)(s^2-6s+36)$ which exactly matches option 3 in the given options.

Therefore, option 3 is correct that is $(6+s)(s^2-6s+36)$

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3 years ago

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Uscles Gym has a membership fee of $40 every 3 months. Energy Gym has a membership fee of $93 every 6 months.

snow_lady [41]

Answer:

Muscles Gym: 13.33

Energy Gym: 15.00

Step-by-step explanation:

Muscles Gym: You divide "40.00" by "3", which will then give you the answer of "13.33".

Energy Gym: You divide "93.00" by "6", which will then give you the answer of "15.50".

You then add the zero to show the proper number of cents after the decimal point.

I hope this helps!

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3 years ago

For a scale to pass inspection, the scale's reading can vary by at most

bezimeni [28]

Answer:

2.5 grams I think or 0.25

Step-by-step explanation:

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3 years ago

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2x + y = -4 5x - 3y = 1 Solve with elimination method

Ivanshal [37]

Answer:

For the first equation the answer for "X" will be,

$x = \frac{ - 4 - y}{2}$

if you want me to solve for y instead then the answer will be,

$y = - 4 - 2x$

for the second equation the answer for "X" will be,

$x = \frac{1 + 3y}{5}$

If you want me to solve for y instead then the answer will be,

$y = - \frac{1 - 5x}{3}$

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3 years ago

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