after elsa baked muffins, her brother ate 4 of them. he ate 2 5 of all of the muffins. how many muffins did elsa bake?

Answers

Answer 1

Answer: If you would like to know how many muffins did Elsa bake, you can calculate this using the following steps:

2/5 of all of the muffins = 4 muffins
2/5 * x muffins = 4
2/5 * x = 4 /*(5/2)
x = 4 * 5/2
x = 10 muffins

The correct result would be 10 muffins.

Answer 2

Answer:

Answer:

10 muffins e2020 says

Step-by-step explanation:

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The amount of money left on a loan that kira owes her grandmothers is represented by the function k(t)= 280(.88)^t where k(t) represents the amount of money left on the loan and t tepresents the time, in years.1) Identify k(t) as growth or decay and explain your answer.

2) Name A0, startinf amount and explain what it represents.
3) Find r,the percent change and explain what it represents.
thank youso much!!!

Answers

Given:
k(t) = 280 (.88)^t

t k(t)
0 280
1 246.40
2 216.83
3 190.81
4 167.91
5 147.76

k(t) is decay. The amount decreases as the number of years increases. This means that the loan is being paid off until it becomes 0.

280 is the starting amount. It is the amount loaned.

88% of the previous years amount is the remaining balance for the current year.

The corresponding edges of two regular tetrahedrons are 1 cm and 3 cm. If the sum of the weights of the two tetrahedrons is 100 grams and both solids are made up of the same material, find the weight of the bigger solid.

Answers

m 1 = V 1 * d
m 2 = V 2 * d
Both tetrahedrons have the same density.
V = 1/3 * a²√3/4 * h
V 1 = 1/3 * 1² * √3 / 4 * √2 / √3 = √2 / 12 cm³
V 2 = 1/3 * 3²√3 /4 * √6 = 9√2 / 4 cm³
m 1 : m 2 = √2 /12 : 9√2/4
m 1 * 9√2 / 4 = m 2 * √2 / 12
m 1 = m 2 / 27
m 1 + m 2 = 100 g
m 2 / 27 + m 2 = 100 g / * 27
m 2 + 27 m 2 = 2700
28 m 2 = 2700
m 2 = 2700 : 28
m 2 = 96.42 g
Answer:
The weight of the bigger tetrahedron is 96.42 g.

Which shows one way to determine the factors of 12x3 – 2x2 + 18x – 3 by grouping?

Answers

Well first you would break the equation down so the equation comes to 2x^2(6x-1)+3(6x-1) and then you Factor out common terms in the first two terms and then in the last two terms. Factor out the common term 6x-1 and you get your answer (6x-1)(2x^2+3).

Solve the simultaneous equations:

6x-4y=39
2x+y=6

Answers

Answer:

(9/2, -3)

Step-by-step explanation:

If the complex number x = 3 + bi and |x|^2 = 13, which is a possible value of b?

Answers

so, if z = x+iy,
|z| = $\sqrt{x^2+y^2}$
and $ |z|^2 = x^2 + y^2 $

so if x = 3+bi
|x|^2 = 3^2 + b^2
which is given to be 13

3^2 + b^2 = 13
9+b^2 = 13
b^2 = 13-9
b^2 = 4
b = +\sqrt 4 , -sqrt 4
b = +2,-2

Hence, the possible values of b are +2 or -2.

Answer:

The answer is A in edge. The answer is 2.

Step-by-step explanation:

Match the proof . This is really hard.

Answers

Answer:

DBFEA

Step-by-step explanation:

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