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Mashcka [7]
3 years ago
8

Im really confused on this question

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

Answer:

im confused on that question too but here is the a pic for u

Step-by-step explanation:

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Michelle bought a new table that cost $350. The sales tax is 7.5%, how much will the tax increase the cost of the table? *
MissTica

Answer:

$26.25

Step-by-step explanation:

multiply 350 by 0.075

3 0
3 years ago
One pipe can fill a pool in 9 hours. Another pipe can fill the pool in 6 hours. How long would it take them to fill the pool if
kow [346]

Answer:

3.6 hours or 3 hours and 36 minutes.

Step-by-step explanation:

If the first pipe can fill the pool in 9 hours that means that in 1 hour it fills \frac{1}{9} of the pool, we use the same logic for the second pipe and conclude that in 1 hour it feels up \frac{1}{6} of the pool. If both were to fill the pool together that means that in 1 hour they would fill...

\frac{1}{9} +\frac{1}{6} = \frac{5}{18} of the pool in 1 hour.

Now to find how many hours it will take divide the pool by the speed with which it is getting filled.

1 / \frac{5}{18} = 3.6 hours

3.6 hours in other words is 3 hours and 36 minutes.

3 0
2 years ago
In a lab experiment, 610 bacteria are placed in a petri dish. The conditions are such that the number of bacteria is able to dou
Alex777 [14]

Answer:

It would take 19 hours and 36 minutes until there are 1040 bacteria present.

Step-by-step explanation:

Given that in a lab experiment, 610 bacteria are placed in a petri dish, and the conditions are such that the number of bacteria is able to double every 23 hours, to determine how long would it be, to the nearest tenth of an hour, until there are 1040 bacteria present, the following calculation must be performed:

610X = 1040

X = 1040/610

X = 1.7049

2 = 23

1.7049 = X

1.7049 x 23/2 = X

39.2131 / 2 = X

19.6 = X

100 = 60

60 = X

60 x 60/100 = X

36 = X

Therefore, it would take 19 hours and 36 minutes until there are 1040 bacteria present.

5 0
2 years ago
What is the solution for -3x ≥ 36?
Montano1993 [528]
Hey there!

To solve for the solutions of your inequality, divide both sides of your inequality by -3 in order to isolate the value of x:

-3x≥36
÷-3  ÷-3

x≤12 
**Note: in inequalities, if you ever divide or multiply a number that is negative, you must flip the inequality sign. In this case, because you have divided -3 from both sides, you must flip the inequality sign from ≥ to ≤.

Therefore, your solutions to your inequality would be x≤12.

Hope this helps, and have a nice day! :)
8 0
3 years ago
I need too know everything because I don't get this problem at all
inessss [21]
Surface area= Area of all the shapes added together
Area of square =s^2
Area of triangle =bh/2
S=12
B=12 B is s
H=8
12^2 =144 square
12×8= 96/2=48 triangle
There are 4 triangles and 1 square
144+48+48+48+48=336 Answer is f hope that helps
5 0
3 years ago
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