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Vsevolod [243]
2 years ago
11

Deisha saved d dollars last month. This month she saved $8 more than 3 times the amount she saved last month. She saved a total

of $141
Mathematics
1 answer:
DaniilM [7]2 years ago
3 0

Answer:

Step-by-step explanation:

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20x+32y=0 <br> -50x-80y=0
german

Answer:

dont know what you need

Step-by-step explanation:

explain what you need

4 0
2 years ago
g If a snowball melts so that its surface area decreases at a rate of 4 cm2/min, find the rate (in cm/min) at which the diameter
maks197457 [2]

Answer:

Rate of change of the diameter is equal to 0.053cm/min

Step-by-step explanation:

A snowball is of the shape of a sphere

Surface area of Sphere (S)= 4*pi*R^2

Rate of change of surface area

dS/dt = -4cm^2/min

the negative sign indicates the surface area is decreasing.

Radius = d/2 where d represents diameter

using this is the surface area equation

S = 4*pi*(d/2)^2

   = pi*d^2

dS/dt = 2*pi*d*d(d)/dt

4 = 2*pi*d*(d)/dt

d(d)/dt = 2/12*pi= \frac{1}{6pi} cm/min

so the rate of change of the diameter is equal to 0.053cm/min

5 0
2 years ago
Using the information in problem 6, tell me in words what the number line of the solution set will look like.
Triss [41]

Answer:

you haven't provided me with anything please provide me with something and I will comment you the answer. mods please stop deleting it :(

Step-by-step explanation:

3 0
3 years ago
Solve each equation.<br> 13 = -2w
USPshnik [31]

Answer:

w = -6.5

Step-by-step explanation:

We want to get rid of the coefficient of w so that we can solve for w. To do that, let's divide both sides of the equation by -2. When we do so, we get -13/2 = w. Hope this helps!

6 0
3 years ago
A recursive rule for an arithmetic sequence is a1 = 4; an = an-1 + 3 . What is an explicit rule for this sequence? (Picture atta
Slav-nsk [51]
Answer: 3n+1
(no need to type in the "a_n" or "an" part, as it's already done)

--------------------------------------------------------------------------

Explanation:

The first term is a1 = 4 since it is given to us
The common difference is d = 3. This is the value that we add to each term to get the next as the recursive steps shows when we write a(n) = a(n-1)+3
In other words,
nth term = [ (n-1)st term ] + 3
next term = (previous term) + 3

Using a1 = 4 and d = 3, we get the following
an = a1+d(n-1)
an = 4 + 3(n-1)
an = 4+3n-3
an = 3n + (4-3)
an = 3n+1
7 0
3 years ago
Read 2 more answers
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