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padilas [110]
3 years ago
13

Calculate the area 16 10 16​

Mathematics
1 answer:
kvasek [131]3 years ago
6 0
The area should be 21
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A piggy bank contains $5.60 in nickels and dimes. The number of nickels is 8 less than 3 times the dimes. How many nickels and d
Musya8 [376]
The value of the coin times the number of coins all added up equals the total value of the piggy bank
so
0.05n + 0.10d = 5.60

then they have given us "number of nickels is 8 less than 3 times the dimes"
this translates to
n = 3d - 8

we plug this into our first equation and we get
0.05(3d - 8) + 0.10d = 5.60

now we solve for d
first we can distribute the 0.05
0.15d - 0.40 + 0.10d = 5.60

then we can add the 0.15d and 0.10d together
and get
0.25d - 0.40 = 5.60

then we can add 0.40 to both sides
0.25d = 6.00

then divide both sides by 0.25
d = 6.00 / 0.25 = 24
so we have 24 dimes


then to find nickels, we plug in 24 for d into
n = 3d - 8
and get
n = 3(24) - 8
n = 72 - 8
n = 64

therefore we have
64 nickels
and
24 dimes
4 0
3 years ago
Read 2 more answers
The pictures above please help
Semmy [17]
Yes uts b ok ty yw ☺️
4 0
3 years ago
Read 2 more answers
Area and explanation?
Olin [163]
There are a few ways to go about doing this, but the easiest is portably to break it up into three shapes: two identical triangles, and a rectangle. The area of one triangle is:
1/2 (10x8) = 40, so the area of two triangles is 80.

The area of the square is 20 x 8, which is 160.

The total area is the sum of the two:
80 + 160 = 240, and this is your total area.
7 0
3 years ago
-4.56 × 10-3 in standard form.
MissTica

Answer:

-48.6

Step-by-step explanation:

5 0
2 years ago
2²×2⁴÷2³ can you help me out and please add explanations it would be very helpful.
Oxana [17]

Answer:

=8

Step-by-step explanation:

2²×2⁴÷2³

=2^2x2^{4-3}

=2^{2+4-3}

=2^3

=8

I hope this helps!

4 0
3 years ago
Read 2 more answers
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