MATHEMATICS HIGH SCHOOL

Simplify 3.7-4.6n -2n+5

Answers

Answer 1
Answer:

Answer: =-6.6n+8.7

3.7-4.6n-2n+5.

add the similare elimants : -4.6n - 2n= -6.6n,

=3.7 - 6.6n +5.

Then add the numbers: 3.7+5=8.7.

= -6.6n+8.7

HOPE THIS HELPED YOU, IF NOT SO SORRY MATE!!! :) IF WRONG PLEASE DO NOT REPORT THIS.

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Eighty percent of the tourists in a group took a bus and the rest took a taxi. The bus fare per person is 40% less than the taxi fare per person. All together they paid $68 for the tour transportation, and the bus fare per person is $3. How many tourists are in the group?
If m is the number of magic markers, which variable expression represents the phrase below?The difference between the number of magic markers and 7 colored pencils A. � ⋅ 7 m⋅7 B. � + 7 m+7 C. � − 7 m−7 D. � ÷ 7 m÷7

Evaluate the following expression using the values given:Find -3a2 - b3 + 3c2 - 2b3 if a = 2, b = -1, and c = 3.

Answers

-3(2^2) - 3(-1) + 3(3^2) - 2(-1^3)
-3(4) - 3(-1) + 3(9) - 2(-1)
-12 + 3 + 27 + 2
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18 + 2
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Montel sold 13 popcorn buckets and 13 fruit baskets for a fundraiser. The fruit baskets cost $20.75 each. If Montel raised a total of $468.00, how much did each popcorn bucket cost?

Answers

13\cdot\$20.75=\$269.75-fruit\ baskets\n\n\$468.00-\$269.75=\$198.25-popcorn\ busket\n\n\$198.25:13=\$15.25-cost\ each\ popcorn\ bucket

An amusement park has 11 roller coasters. In how many ways can you choose 4 of the roller coasters to ride during your visit to the park?

Answers

4!=4*3*2*1=24
11!=11*10*9*8*7*6*5*4*3*2*1=39916800
7!=7*6*5*4*3*2*1=5040
n choose k
how many ways are there to choose k rollercoasters from n choices?

\left(\begin{array}{ccc}n\nk\end{array}\right)=(n!)/(k!(n-k)!)

\left(\begin{array}{ccc}11\n4\end{array}\right)=(11!)/(4!(11-4)!)=(39916800)/(24(7)!)=(39916800)/(24(5040))=(39916800)/(120960)=330



330 ways

Where is the number 4 − 8 located on a horizontal number line?4 units to the left of 4
4 units to the right of 4
8 units to the left of 4
8 units to the right of 4

Answers

Answer:

C. 8 units to the left of 4

Step-by-step explanation:

We are asked to find the the position of 4-8 located on a horizontal number line.

We know that negative numbers are located on the left side side of number line and positive numbers are located on the right side of number line.

4 will be located to the 4 units right from zero and negative 8 will be located 8 units left from 8.

Therefore, option C is the correct choice.

Answer:

8 units to the left of 4

Step-by-step explanation:

Find the value of the variable if P is between J & K.

JP = 2x ; PK = 7x ; JK = 27

Answers

J ---- P --- K

JP = 2x
PK = 7x
JK = 27

2x + 7x = 27
9x = 27
x = 27/9
x = 3

The value of P is 3.

JP = 2x = 2(3) = 6
PK = 7x = 7(3) = 21

Which of the following options is a better purchase for a bicycle? Option 1: A cash sale for $88 Option 2: $5 down with equal payments of $8 for 10 weeks
Option 3: $12 down with equal payments of $5 for 12 months
Option 4: $20 down with equal payments of $20 for 12 months

(A.) Option 3
B. Option 1
C. Option 2
D. Option 4

Answers

Answer:

Option 3

Explanation:

To get the value of the cheapest bike, best option, we will calculate the total cost of each bike:

i- Option 1:

Total cost = $88

ii- Option 2:

$5 down payment and $8 per week for 10 weeks

Total cost = 5 + 8(10) = 5 + 80 = $85

iii- Option 3:

$12 down payment and $5 per month for 12 months

Total cost = 12 + 5(12) = 12 + 60 = $72

iv- Option 4:

$20 down payment and $20 per month for 12 months

Total cost = 20 + 20(12) = 20 + 240 = $260

Now, from the above calculations, we can conclude that:

The best price would be that of option 3 ($72). It is the lowest price compared to other option.

Hope this helps :)

Answer:

The answer is option 3

Step-by-step explanation:
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