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EleoNora [17]
2 years ago
5

Alvin has $30 and is saving $10 per week. Buzzy has $10 and he saves $15 per week. Both are saving for a guitar that costs $225

Mathematics
2 answers:
mihalych1998 [28]2 years ago
8 0
It takes alvin 20 weeks, and it takes buzzy 15 weeks
suter [353]2 years ago
6 0
Alvin saves about 70 per week 10 x 7 = 70
It will take him about 3 weeks to save up for the guitar
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If 23 people shake each others hands once how many hands are shook in all
AURORKA [14]
This is the number of combinations of 2 from 23
 23C2   = 23! / 2! 21!

A quick way to do this   is  23*22 / 2   =   253
7 0
3 years ago
Walden’s family is shopping for a reclining chair. The chair the family decided on has a retail price of $800 plus 5% sales tax
Marianna [84]

Answer:

B 10% off sale, with a total price to pay of 756

Step-by-step explanation:

Retail price (Rp) = $800

Taxes (T) = 5%

  • Offer A $75 instant rebate

Total price A (TA) = Rp - 75 + (Rp - 75) 5%

TA = 800 - 75 + (800-75) 5%

TA = 725 + 725 5%

725 5% = 725*5/100 = 36.25

TA= 725+36.25 = $761.25

  • Offer B 10% off sale

Total price B (TB) = RP - RP 10% + (RP - RP 10%) 5%

TB = 800 - 800 10% + (800 - 800 10%) 5%

800 10% = 800*10/100 = 80

TB = 800 - 80 + (800 - 80) 5%

TB = 720 + 720 5%

720 5% = 720*5/100 = 36

TB = 720 + 36 = $756

  • Offer C 5% off sale plus store pays sales tax

store pays sales tax means Walden's family will not need pay for taxes

Total price C (TC) = RP - RP 5%

TC = 800 - 800 5%

800 5% = 800*5/100 = 40

TC = 800 - 40 = $760

  • Offer D a “no tax” sale—the store pays the tax

Means that Walden's family will need pay just the retail price

TD = $800

The beast deal is from the store B

7 0
3 years ago
Read 2 more answers
How is 52.86 said in word form
Alborosie
Fifty-two and eighty-sixth hundredths. 
7 0
3 years ago
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First gets brainliest! Please and thanks you :)
erma4kov [3.2K]

Answer:

Its B

Step-by-step explanation:

93000000 times 2/5 is 37200000 aka 3.72 times 10 to the 7th power

3 0
3 years ago
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.
Dahasolnce [82]

Answer:

C (3x4) + (5x2) + 20

Step-by-step explanation:

3 things that cost 4 dollars. 5 things that cost 2 dollars and one that cost 20.

3 0
3 years ago
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