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lara [203]
3 years ago
6

I need help on 5 please help fast

Mathematics
2 answers:
djyliett [7]3 years ago
8 0
 the correct answer is 83.

yyyyyeeeeeeaaaahhhhhh bbbbooooiii
marysya [2.9K]3 years ago
6 0
The equation you would use is 
mean= Test1+test2+test3+test4+test5+Test6+x/Total number of tests

so 83=89+78+69+81+89+90+X/7
First mutiple both sides by 7 so 
581=496+X
you then substract the 496 and get 85
so she would need a 85 on the 7th test
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For what values of x is the equation true? (Form 1st!)<br> x^2-4x=32
Alexandra [31]

Answer:

It can be solved in many forms

one by replacing each point to see which one satisfy the equation or by using quadratic formula

so the right answer is the fourth one

8 0
3 years ago
98 Points! MATH SOLVING SYSTEMS OF LINEAR EQUATIONS
photoshop1234 [79]

Answer:

40 Tickets

80 Tickets

Step-by-step explanation:

To find how many tickets it will take to break even, we use the formula:

Break Even In Units = \dfrac{FixedCost}{SalesPricePerUnit-VariableCost}

Our variables are:

Fixed Cost = $200

Sales Price = $10

Variable Cost = $5

Let's plug in our values into the formula.

Break Even In Units = \dfrac{200}{10-5}

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So the class needs to sell a total of 40 Tickets to break even.

Since we know that it takes 40 tickets to break even a $200 Fixed cost. To make a profit of $200, we simply multiply the number of tickets sold by 2.

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So the class needs to sell 80 Tickets to make a $200 Profit.

5 0
3 years ago
Tapes-r-us are us is having a sale on HQ tape players the regular price is $60 discount is $18 what percent discount is this
Marianna [84]
To find the percent discount you will write the following equation:
x% of 60 is 18

<u>60x</u> = <u>18</u>
60      60

x = 0.3
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3 0
3 years ago
X3+2x=110
olchik [2.2K]
x^3+2x=110 \\  \\ test:4.5 \\ (4.5)^3+2(4.5)=110 \\ 91.125+9=110 \\ 100.125=110 \\ false \\  \\ test:4.75 \\ (4.75)^3+2(4.75)=110 \\ 107.17+9.5=110 \\ 116.67=110 \\ false \\  \\ test:4.6 \\ (4.6)^3+2(4.6)=110 \\ 97.33+9.2=110 \\ 106.53=110 \\ false \\  \\ test:4.65 \\ (4.65)^3+2(4.65)=110 \\ 100.7+9.3=110 \\ 110=110 \\ true \\  \\ solution:4.65
7 0
3 years ago
Help please I’ll give extra poubts
Fed [463]

Answer:

the answer is B

Step-by-step explanation:

subtract 33 from 90

6 0
3 years ago
Read 2 more answers
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