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KonstantinChe [14]
3 years ago
12

Look at the student work shown below. Simplify: 4(2s - 7). (44(2 s) – 7 8st - 7 Did the student correctly simplify the expressio

n? If the student did wrong and what should have been done​
Mathematics
1 answer:
Darina [25.2K]3 years ago
7 0

Answer:

hvjfvfd

Step-by-step explanation:

bfjdzv

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Alan has twice as many dimes as he has quarters and 10 more nickels than dimes. The remaining 35 coins are pennies. How many of
zaharov [31]

Answer:

He has 3 quarters , 6 dimes and 16 nickles

Step-by-step explanation:

∵ Dimes is d , Quarter is q , nickels is n and pennies is p

∵ Quarter = 25 cents

∵ Dime = 10 cents

∵ Nickle = 5 cents

∵ Penny = 1 cent

∵ The remaining 35 coins are pennies ⇒ 35 cents

∵ He has $2.50 = 2.50 × 100 = 250 cents

∴ The value of quarters , dimes and nickels = 250 - 35 = 215 cents

∴ 25q + 10d + 5n = 215 ⇒ (1)

∵ d = 2q  

∴ q = 1/2d ⇒ (2)

∵ n = 10 + d ⇒ (3)

Substitute (2) and (3) in (1)

∴ 25(1/2 d) + 10d + 5(10 + d) = 215

∴ 12.5d + 10d + 50 + 5d = 215

∴ 27.5d = 215 - 50

∴ 27.5d = 165

∴ d = 165 ÷ 27.5

∴ d = 6

∴ q = 1/2 (6) = 3

∴ n = 10 + 6 = 16

∴ He has 3 quarters , 6 dimes and 16 nickles

7 0
3 years ago
Read 2 more answers
John's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs John $5.95 per pound, and type B
Maksim231197 [3]

Answer:

Let x = the number of lbs of Type A coffee.

We know that this month's blend used 3 times as many pounds of type B coffee as type A coffee.

Total lbs of coffee = x + 3x

The total cost then is:

($ cost for Type A)(x) + ($ cost for Type B)(3x) = $717.60

$5.65x + $4.25(3x) = $717.60

$5.65x + $12.75x = $717.60

$18.40x = $717.60

x = 39 lbs

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3 years ago
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Answer:

-3.786 ..8.23.. 0.75....10.86731234 are all irrational numbers

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4 years ago
Each statement describes a transformation of the graph of .
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it's C: It is the graph of y = log2x translated 9 units down and 3 units to the left.

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3 years ago
Any two points of a circle can be joined or formed a
sergejj [24]
The answer would be Diameter
Hope this helps! 
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3 years ago
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