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ozzi
3 years ago
9

IM DESPERATE I need help with #3. I would like it if you could explain how to do it because there are 2 more that are similar to

#3. Thank you!​

Mathematics
2 answers:
hodyreva [135]3 years ago
7 0
$30 • 10%

10% = 0.10

30 • 0.10 = 3

The answer is $27. They got $3 off.

$30 - $3 = $27.
navik [9.2K]3 years ago
7 0
i could be wrong but i thing it’s 3 if because 10% of 30 is 3
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2 in 4x = 2 in 8 What is the true solution to
aniked [119]

Answer:

2In4x= 2In8 ln(16x^2) = ln64 Multiply e by both sides.

Step-by-step explanation:

7 0
3 years ago
Hank has 50 peso, 200 peso and 500 peso bills in his wallet. He has five less 200 bills as 50 bills, and half as many 500 bills
Varvara68 [4.7K]

For an amount of 6250 Peso, Hank have the quantities of the following denominations: 2503 bills of 50 peso, 2498 bills of 200 peso and 1249 bills of 500 peso.

<h3>How to apply systems of linear equations in real life equations</h3>

In this question we must translate the statement of the problem into mathematical expressions and then we must solve the resulting system. We need three equations that describe the quantities of 50 peso, 200 peso and 500 peso bills:

<em>y = x - 5</em>     (1)

<em>0.5 · y =</em> <em>z</em>    (2)

<em>x + y + z = 6250</em>     (3)

The solution of the system of <em>linear</em> equations is described below:

<em>x =</em> 2503, <em>y =</em> 2498, <em>z =</em> 1249

For an amount of 6250 Peso, Hank have the quantities of the following denominations: 2503 bills of 50 peso, 2498 bills of 200 peso and 1249 bills of 500 peso. \blacksquare

To learn more on systems of linear equations, we kindly invite to check this verified question: brainly.com/question/20379472

8 0
2 years ago
How do I solve 24(x-1) = -6(4-x)+18
podryga [215]

<em>So</em><em> </em><em>the</em><em> </em><em>right</em><em> </em><em>answer</em><em> </em><em>is</em><em> </em><em>1</em><em>.</em>

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8 0
3 years ago
Read 2 more answers
A tank that is 40% full contains 648 gallons of water. Use a double number line to find the maximum capacity of the water tank.
natali 33 [55]
We know that
Double number lines<span> are best used to visualize equivalent ratios and describe a ratio relationship between two quantities.
</span>
<span>start with the par 40% - 648 gal and let's calculate the other missing data
to find 10%-------> multiply 648 gal by (1/4)
</span>to find 20%-------> multiply 648 gal by (1/2)
to find 30%-------> multiply 648 gal by (3/4)
to find 50%-------> multiply 648 gal by (5/4)
to find 60%-------> multiply 648 gal by (6/4)
to find 70%-------> multiply 648 gal by (7/4)
to find 80%-------> multiply 648 gal by (8/4)
to find 90%-------> multiply 648 gal by (9/4)
to find 100%-------> multiply 648 gal by (10/4)<span>

</span>Here is what the numbers would look like on a number line.  They are lined up.
10%  20%  30%  40%  50%  60%  70%  80%  90%  100%
162   324   486   648   810   972   1134  1296  1458  1620

the answer is
the maximum capacity is 1620 gallons of water.
4 0
3 years ago
Directions: Given the point and slope, write the equation of the line. 3. (1,-7); slope = -1
Ira Lisetskai [31]

Answer:

y=-1x-6

Step-by-step explanation:

4 0
2 years ago
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