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3 years ago

Select 2 strategies that we can use to subtract 563-192

Mathematics

2 answers:

mestny [16]3 years ago

8 0

Answer:

B and C

Step-by-step explanation:

A = 192

B = (563 - 200) + 8 = 371

C = 571 - 200 = 371

MissTica3 years ago

4 0

Answer:

C. Subtract 571 - 200

Step-by-step explanation:

563 - 192

We can make 192 to 200 by adding 8

So if I add 8 to 192 I have to add 8 to 563

563 + 8 = 571

192 + 8 = 200

571 - 200 = 563 - 192

371 = 371

Therefore our answer is C.

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$1400 from fund-raisers in a 18-month CD paying 3.7%

saw5 [17]

Answer:

The junior class will receive US$ 1,479.77 when it cashes in the Certificate of Deposit.

Step-by-step explanation:

1. Let's review the data given to us for answering the question:

Amount invested in the Certificate of Deposit = US$ 1,400

Duration of the CD = 18 months

Interest rate = 3.7% compounded monthly

2. Let's find the future value of the Certificate of Deposit after 18 months, using the following formula:

FV = PV * (1 + r) ⁿ

PV = Amount invested = US$ 1,400

number of periods (n) = 18

rate (r) = 3.7% = 0.037 annually or 0.003083 monthly

Replacing with the real values, we have:

FV = 1,400 * (1 + 0.003083) ¹⁸

FV = 1,400 * (1.003083) ¹⁸

FV = 1,400 * 1.056978

FV = US$ 1,479.77 (Rounding to the nearest cent)

The junior class will receive US$ 1,479.77 when it cashes in the Certificate of Deposit.

8 0

3 years ago

Convert each rate. round to the nearest tenth if necessary. Show ALL work. 10 ounces= grams

Nadya [2.5K]

Answer:

283.495

Step-by-step explanation:

8 0

2 years ago

3х +5 > – 2x — 5 ............

Yanka [14]

Answer:

x>-2

Step-by-step explanation:

6 0

3 years ago

75.2% of 130 what is the answer and work

Ainat [17]

Answer:97.76

Step-by-step explanation:x=97.76

Explanation:

130 - 100%

x - 75.2%

130

⋅

75.2

100

97.76

8 0

3 years ago

A radioactive substance has a continuous decay rate of 0.056 per minute. How many grams of a 120 gram sample will remain radioac

sammy [17]

Answer:

The mass of the radioactive sample after 40 minutes is 12.8 g.

Step-by-step explanation:

The mass of the sample can be found by using the exponential decay equation:

$N_{t} = N_{0}e^{-\lambda t}$

Where:

N(t): is the amount of the sample at time t =?

N₀: is the initial quantity of the sample = 120 g

t = 40 min

λ: is the decay constant = 0.056 min⁻¹

Hence, the mass of the sample after 40 min is:

$N_{t} = N_{0}e^{-\lambda t} = 120g*e^{-0.056min^{-1}*40 min} = 12.8 g$

Therefore, the mass of the radioactive sample after 40 minutes is 12.8 g.

I hope it helps you!

5 0

3 years ago