MATHEMATICS MIDDLE SCHOOL

You want to purchase 1-liter of vegetable oil at $2.10, a 100-oz orange juice at $4.50, 2-liter bottle of milk at $3.50, 250ml of cream at $2.60. You received a $1.50 rebate peanut butter and had a store coupon for $0.84 off each item. If you are supposed to pay a 6.75 percent sales tax on the final price, how much will you pay?

Answers

Answer 1
Answer:

Answer:

$8.37

Step-by-step explanation:

2.10 - 0.84 =  1.26

4.50 - 0.84 = 3.66

3.50 - 0.84 = 2.66

2.60- 0.84= 1.76

1.26+3.66+2.66+1.76= 9.34

9.34- 1.50= 7.84

7.84 + 6.75 %= 8.3692 (rounded 8.37)



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What is m^-1

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-m

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Verbal expression for 9a2

Answers

Answer:

9 times 'a' squared.

Step-by-step explanation:

We are asked to represent the verbal description for our given expression .

We can see that in our given expression 9 is multiplied by a variable raised to second power.

We know that a variable raised to second power is known as variable squared.

Therefore, the verbal description for our given expression would be 9 times a variable 'a' squared.

If the 2 is little and on top of the a, then it's called "nine a squared."
HIGH SCHOOL

What is the equation of a circle with diameter line AB that has endpoints A(0,0) and B(8,6)

Answers

The equation of a circle is
(x-h)²+(y-k)²=r²
center is (h,k) and radius is r

find the midpoint to find the center of the circle

midpoint of (x1,y1) and (x2,y2) is ((x1+x2)/2,(y1+y2)/2)
so midpoint of (0,0) and (8,6) is ((0+8)/2,(0+6)/2)=(8/2,6/2)=(4,3)

(x-4)²+(y-3)²=r²
input a point to find r
(0,0)
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16+9=r²
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MIDDLE SCHOOL

A group of 10 friends had lunch together at a restaurant. The meal cost a total of $99.50, including a 15% tip. How much was the total bill for lunch before the tip?

Answers

Cost of meal before tip + 15% = $99.50

Adding 15% is equal to multiplying by 1.15

Cost of meal before tip x 1.15 = 99.5

This can be rearranged to give;

Cost of meal before tip           = 

Cost of meal before tip          = $86.52
Each meal was $9.95 a peice aND EACH HAD TO pay $1.50 on the tip

MIDDLE SCHOOL

Ben, Tracy, and Tran spent a total of $15 to go skating, they each rented skates at the park for n dollars.

Answers

Answer:

Step-by-step explanation:

HIGH SCHOOL

Evaluate the summation of 2 n plus 5, from n equals 1 to 12.. A. 29
B. 36
C. 216
D. 432

Answers

Answer:

Option: C is the correct answer.

                          C.  216

Step-by-step explanation:

We are asked to evaluate the sum of the following summation:

Now, this summation could also be written as:

i.e.

Now, we know that:

Since,

i.e.

and

Hence, we have:

i.e.

i.e.

the correct answer is C)216 / Let f(n) = 2n + 5. Then we must simply calculate (f1), f(2), ..., (f12). And we have that f(1) = 2*1 + 5 f(1) = 7; f(2) = 2*2 + 5 f(2) = 9; f(3) = 2*3 + 5 f(3) = 11. And so on. It's easy to see that the rest of the results will be 13, 15, 17, 19, 21 and so on. So the summation will be S = 7 + 9 + 11 +... + 29 S = 216
HIGH SCHOOL

An exponential random variable has a standard deviation of 16. Calculate The probability that it takes on a value < 11. Use 3 decimal places.

Answers

Answer:

And using the cdf we got:

Step-by-step explanation:

Previous concepts

The exponential distribution is "the probability distribution of the time between events in a Poisson process (a process in which events occur continuously and independently at a constant average rate). It is a particular case of the gamma distribution". The probability density function is given by:

0" alt="P(X=x)=\lambda e^{-\lambda x}, x>0" align="absmiddle" class="latex-formula">

And 0 for other case. Let X the random variable that represent the random variable of interest and we know that the distribution is given by:

We know the variance on this case given by :

So then the deviation is given by:

And if we solve for we got:

The cumulative distribution function for the exponential distribution is given by:

Solution to the problem

And for this case we want to find this probability:

And using the cdf we got:

MIDDLE SCHOOL

Which of the following is(are) the solution(s) to 3x+10=10

Answers

3x+10=10
-10 -10
3x=0
If I remember correctly this is called “no real solution”
MIDDLE SCHOOL

Whoever Answers Correct I'll Mark Brainliest! Solving Ratio Problems:


Roses 7
Carnations 5
Total 12 96

The ratio of roses to carnations is 7 to 5. If 96 flowers are needed for table decorations, ______ roses and ______ carnations are needed.

Answers

Step-by-step explanation:

Let the common multiplier of the given ratios be x.

Therefore, no. of roses = 7x & no. of carnations = 5x

According to the given information:

Thus,

Number of roses = 56

Number of carnations = 40

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