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Grace [21]
4 years ago
10

Naomi earned $840 for working 40 hours last week. How much will she get paid this week if she only works 30 hours assuming she g

ets paid the same hourly rate?
Mathematics
1 answer:
zloy xaker [14]4 years ago
3 0

Answer:

Naomi will get paid $630 if she only works 30 hours this week.

Step-by-step explanation:

You divide 840 by 40 to see how much you get paid per hour.

Once you do that you get $21 per hour.

You multiply 21 by 30 to know how much you'd be paid for working 30 hours.

You get your final answer which is $630.

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Maslowich
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7. </span><span>(2a + 3b) + 4c = 2a + (3b + 4c) 
Associative property of addition, because you're moving the parentheses. 
</span><span>
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Substitution property.

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12.</span><span> (-2)³
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5 0
4 years ago
To find the distance across the river, the given diagram is laid out. what is the distance rounded to the nearest meter?
kati45 [8]

Given:

Angle A = 18.6°

Angle B = 93°

Length of side AB = 646 meters

To find:

the distance across the river, distance between BC

Steps:

Since we know the measure of 2 angles of a triangle we can find the measure of the third angle.

18.6° + 93° + ∠C = 180°

        111.6° + ∠C = 180°

                    ∠C = 180° - 111.6°

                    ∠C = 68.4°

Therefore the measure of angle C is 68.4°.

now we can use the law of Sines,

\frac{BC}{sinA}=\frac{AB}{SinC}

\frac{BC}{sin(18.6)}= \frac{646}{sin(68.4)}

BC[sin(68.4)] = 646 [sin(18.6)]

BC = \frac{646*sin(18.6)}{sin(68.4)}

BC = \frac{646 * 0.3190}{0.9298}

BC = 221.63

BC = 222 meters

Therefore, the distance across the river is 222 meters.

Happy to help :)

If anyone need more help, feel free to ask

7 0
3 years ago
A pack of cinnamon rolls sells for four dollars what is the sales tax rate if the total cost of the cinnamon rolls is $4.32
guapka [62]
32 cents is the tax
8 0
3 years ago
I need help...I'm new to all this geometry stuff can someone please show me some steps to this problem
Rasek [7]


There really aren't any steps. It's just a handy fact about Isosceles triangles.

An Isosceles triangle is a triangle that has two sides that are the same length,
and one of the facts about this kind of triangle is that the angles opposite the
two equal sides are equal angles.

In your picture, the two sides of the triangle that have tick marks across them
are equal lengths, and that means that the angles at 'S' and 'U' are equal angles.

In this kind of triangle, those are called the "base angles", even though they
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just the two angles that are opposite the two equal sides.


7 0
3 years ago
Read 2 more answers
Find the expected value for the random variable. | 9 12 15 18 21 P(z) 0.16 0.25 0.36 0.17 0.06 Z E(z) = (Type an integer or a de
dmitriy555 [2]

Answer:

The expected value for the random variable is 14.16.

Step-by-step explanation:

We are given the following data below;

          Z                               P(Z)                        Z \times P(Z)

          9                               0.16                           1.44

         12                              0.25                             3

         15                              0.36                           5.4

         18                               0.17                           3.06

         21                          <u>    0.06    </u>                 <u>      1.26      </u>  

       Total                       <u>       1        </u>                <u>      14.16      </u>  

Now, the expected value for the random variable Z is given by;

          E(Z) = \sum Z \times P(Z)

                  = (9 \times 0.16) + (12 \times 0.25) +......+(21 \times 0.06)

                  = 14.16.

5 0
4 years ago
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