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Mars2501 [29]
3 years ago
7

What is the answer to this problem 90-40.74

Mathematics
2 answers:
Rashid [163]3 years ago
5 0
49.26 because 90-40.74=49.26
s344n2d4d5 [400]3 years ago
3 0
The answer to your question is 49.26
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Ms. Turkovich sees that pizzas are on sale. A small pizza costs $8.95 . She will receive a 20 % discount. How much will Ms. Turk
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The cost of 5 pizzas will be $33
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2 years ago
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What and why is the total amount 180 is it a triangle? Or something
pav-90 [236]

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Yes it is

Step-by-step explanation:

when you add up all parts of a triangle they are equal to 180

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What is 3÷4×643×34578546425​
Alex Ar [27]

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1.6675504e+13

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2 years ago
A certain compound has a half-life of four days. Write and use an exponential decay function to find the amount of compound rema
dimaraw [331]

Answer:

1.97 ounces

Step-by-step explanation:

-The exponential decay function is given by the formula:

P_t=P_oe^{-rt}\\\\

Given that the half-life is 4 days, we can substitute in the formula to solve the rate of decay for a single half-life:

P_t=P_oe^{rt}\\\\P_t=0.5P_o\\\\\therefore 0.5=e^{-4r}\\\\-4r=In(0.5)\\\\r=0.17329

#Since, 1 week has 7 days, 3 weeks is a 21-day period, thus, t=21.

#We substitute and solve for the amount remaining after 21days of decay:

P_t=P_oe^{-rt}\\\\=75e^{-21\times 0.17329}\\\\=1.97072\\\\\approx1.97 \ oz

Hence, the amount remaining after 3 weeks of decays is approximately 1.97 ounces

4 0
3 years ago
Solve the following:<br> a) 4x-1 / 2= x+7<br> b)<br> 3x + 2 = 2x + 13 /3
11Alexandr11 [23.1K]

Answer:

a) 2.5

b)2.33

Step-by-step explanation:

a)

4x-\frac{1}{2}= x+7

Bring the numerals to the right hand side and the x terms to the left hand side

4x-x=7+\frac{1}{2}

Simplify

3x=\frac{15}{2}

Divide 3 on both sides, to get x

x=\frac{5}{2} =2.5

b)

3x+2=2x+\frac{13}{3}

Bring the numerals to the right hand side and the x terms to the left hand side

3x-2x=\frac{13}{3}-2

Simplify

x=\frac{7}{3} =2.33

5 0
3 years ago
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