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kirill115 [55]
3 years ago
12

1. 5% of $30 2. 15% of $70 3. 0.4% of $100 SHow your steps and working

Mathematics
2 answers:
pashok25 [27]3 years ago
5 0
5% of $30 is $1.50    5% (.05) multiply
15% of $70 is $10.50     15% (.15) multiply
0.4% of $100 is $0.40     0.4% (.004) multiply

PolarNik [594]3 years ago
3 0
0.05 x 30 = 1.5

0.15 x 70 = 10.5

0.004 x 100 = 0.4
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Evaluate 5.5r8.35s when r12 and s4.
Over [174]

Answer:

32.6

Step-by-step explanation:

when you plug in for s and r you will get 66-33.4 since 5.5 multiped by 12 is 66 and 8.35 multiplied by 4 is 33.4 .

then you subtract them and that's how you'll get your answer

3 0
2 years ago
A football team was training for four hours. During the first hour, they practiced for 5/8 of an hour. During the second hour, t
Leviafan [203]

Answer: 2 19/24 hours was spent in practising.

Step-by-step explanation:

During the first hour, they practiced for 5/8 of an hour. During the second hour, they practiced for 2/3 of an hour. This means that the total time for which they practiced in the first 2 hours would be

5/8 + 2/3 = 31/24 hours

During the last two hours, they first practiced for 3/5 of an hour, took a 1/2 hour break and then practiced the rest of the time. This means that the rest of the time for which they practiced is

2 - (3/5 + 1/2) = 2 - 11/10 = 9/10

Therefore, the time they spent practicing in total would be

31/24 + 3/5 + 9/10 = 67/24 =

2 19/24 hours

7 0
3 years ago
What is the value of the expression?
Morgarella [4.7K]
13.23 is the answer for that equation
8 0
3 years ago
Read 2 more answers
Identify the type of pair of angles labeled as 1 and 2 in the figure.
myrzilka [38]

<em>Hey</em><em>!</em><em>!</em>

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<em>Vertically</em><em> </em><em>opp</em><em>osite</em><em> </em><em>angles</em><em> </em><em>are</em><em> </em><em>always</em><em> </em><em>equal</em><em> </em><em>to</em><em> </em><em>each</em><em> </em><em>other</em><em>.</em>

<em>Hope</em><em> </em><em>it</em><em> </em><em>helps</em><em>.</em><em>.</em>

7 0
2 years ago
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Which set is closed under subtractionWhich answer choice shows that the set of irrational numbers is not closed under addition
vovikov84 [41]

Answer:

(a) Set of rational numbers

(b) \pi + (-\pi) = 0

Step-by-step explanation:

Solving (a): Set that is closed under subtraction

The solution to this is rational numbers.

For a set of number to be closed under subtraction, the following condition must be true

a -b = c

Where

a, b, c are of the same set.

The above is only true for rational numbers.

e.g.

1 - 2 = -1

5 - 5 = 0

\frac{1}{2} - \frac{1}{4} = \frac{1}{2}

4 - 2 = 2

The operations and the result in the above samples are rational numbers.

Solving (b): Choice not close under addition[See attachment for options]

As stated in (a)

For a set of number to be closed under subtraction, the following condition must be true

a -b = c

Where

a, b, c are of the same set.

In the given options (a) to (d), only

\pi + (-\pi) = 0 is not close under addition because:

\pi is irrational while 0 is rational

<em>In other words, they belong to different set</em>

8 0
2 years ago
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