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Marina86 [1]
3 years ago
8

Janet sees a 35% off tag on a $70 hand bag. Janet has $60. If tax is 5%, will she

Mathematics
1 answer:
Natasha_Volkova [10]3 years ago
4 0

______________________________

<h3>= 35% × $70 ÷ 100</h3><h3>= 24.5</h3><h3>= $70 - 24.5</h3><h3>= 45.5</h3><h3>= 5% × 45.5 ÷ 100</h3><h3>= 2.275</h3><h3>= 2.275 + 45.5</h3><h3>= ~$47.775</h3><h3>= <u>$</u><u>48</u></h3><h3>Janet Will Have Enough Money Left Over For A Movie Ticket.</h3>

______________________________

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Indicate whether the study is an observational study or a controlled experiment. A group of boys is randomly divided into two gr
MariettaO [177]

Answer:

Controlled Experiment

Step-by-step explanation:

The controlled experiment involves the experiment in which all factors are considered as constants whereas one factor is not fixed and that one is independent variable whose effect is to be tested. In short,  in controlled experiment one group of data contains control group and one or more other groups are examined by considering all other factors constant except for one factor. The control group is the group that doesn't receive any treatment whereas treatment is applied to experimental group and then effect of treatment is measured through comparing both groups.  

Here group of boys is divided in to two groups

The group watched violent cartoon= Experimental group

The group watched  cartoons without violence= Control group

The researchers want to know whether the violent actions of boys are linked to violent cartoon  and for this purpose these boys are divided into experimental group and control group and after 1 hour of cartoons watching the researcher will observed boys for next two hours.

Hence the study is Controlled experiment.

6 0
3 years ago
Solve the system of equations<br><br> system
Korolek [52]

Answer:

(3, 3 )

Step-by-step explanation:

Given the 2 equations

3x - y = 6 → (1)

6x + y = 21 → (2)

Adding the 2 equations term by term will eliminate y, that is

(6x + 3x) + (y - y) = (21 + 6), that is

9x = 27 (divide both sides by 9 )

x = 3

Substitute x = 3 into either (1) or (2) and solve for y

Using (2), then

(6 × 3) + y = 21

18 + y = 21 ( subtract 18 from both sides )

y = 3

Solution is (3, 3 )

8 0
3 years ago
Read 2 more answers
( - 8)( - 4)(12)<br><br> I need help with this :)
Alisiya [41]

Answer:

= 384

Step-by-step explanation:

(-8)(-4)(12)

= (32)(12)

=384

8 0
3 years ago
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Find the GCF of each pair of monomials. <br> 1). 20, 45x
Helga [31]
 20 and 45x

We look for a number that can go into both numbers.

5 into 20 is 4 and 5 into 45x is 9x.

5:      20       45x

         4           9x

So no other number can go into 4 and 9x again.

So the GCF of 20 and 45x is 5.     

Hope this explains it.
8 0
3 years ago
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4-2 3/5<br>please simplify ​
Novosadov [1.4K]

Answer:

2x3/5

Step-by-step explanation:

3 0
3 years ago
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