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OLga [1]
3 years ago
10

An alloy consists of nickel, zinc, and copper in the ratio 2:7:9. How much alloy can be produced using 4.9 lb of zinc?

Mathematics
1 answer:
Wittaler [7]3 years ago
8 0

Ratio of Nickel to Zinc:

( 2/7 ) = ( Nickel /4.9)

Nickel = 1.4 lbs.

Ratio of Copper to Zinc:

( 9/7 ) = ( Copper /4.9)

Copper = 6.3 lbs.

Alloy = Zinc + Nickel + Copper

Alloy = 4.9 lbs. + 1.4 lbs. + 6.3 lbs.

Alloy = 12.6 lbs.

Hope this answer will be a good h<span>elp for you.</span>
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If $1.00 at 5.5% interest compounded daily has a value of $1.00513 after 34 days, how much interest would Bonnie’s account have
ivolga24 [154]

Answer:

$4020.52

Step-by-step explanation:

The future value is the principal multiplied by the amount $1.00 is worth in the future.

$4,000 × 1.00513 = $4020.52

6 0
2 years ago
Put together, Tom and his father away 280 pounds. Tom’s dad weighs three times as much as he does. How much does Tom weigh?
vovangra [49]

Answer:

Tom weighs 70 pounds

Step-by-step explanation:

first, you have to set up your equation which would be, x + 3x = 280.

The x stands for Tom's weight and the 3x stands for three times Tom's weight for the dad. You would then add your like terms, then divide by 4 to get 70.

x + 3x = 280

4x = 280

280/4 = 70

x = 70

Hope this helps!

3 0
3 years ago
What is the domain in interval notation?
Sonbull [250]

Answer:

The answers are all real numbers where x<2 or x>2. We can use a symbol known as the union, ∪,to combine the two sets. In interval notation, we write the solution:(−∞,2)∪(2,∞). In interval form, the domain of f is (−∞,2)∪(2,∞).

8 0
3 years ago
Please help!!! EASY BRAINLIEST
faltersainse [42]

<em>Your answer would be 5, just the number in general.</em>

<em>>[I'ma be honest here and say I had a fraction earlier :P</em>

4 0
3 years ago
Is 5.78778778 ..a rational or irrational number
Orlov [11]

5.78778778 ….. is an irrational number because the decimal can't be represented as a ratio or fraction.

<h3>What are irrational numbers?</h3>

Irrational numbers are the set of real numbers that cannot be expressed in the form of a fraction, x/y where x and y are integers.

In other words, an Irrational Number is a real number that cannot be written as a simple fraction.

For example π = 3.1459....

π cannot be written as a fraction or ratio.

The decimals of irrational number goes on forever without repeating.

The decimals are continuous.

Therefore, 5.78778778 ….. is an irrational number because the decimal can't be represented as a ratio or fraction.

learn more on irrational number here: brainly.com/question/3386568

#SPJ1

8 0
1 year ago
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