You can buy 8 apples at the Quick market for 1.45.You can buy 6 of the same apples at stop and save for 1.22.Which place is the better buy?

Answers

Answer 1

Answer: 8 apples is the answer

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Calculate the average speed of a car stuck in traffic that drives 12 kilometers in 2 hours

Answers

Average speed = (total distance) / (time for the distance)

Average speed= (12 km) / (2 hours) = 6 km per hour

$v_M=(d)/(t)\n \n v_M=(12 \ km)/(2 \ h)=6 \ km/h$

A stick is x meter long. A string is 4 times as long as the stick. Express the length of the stick in terms of x.

Answers

To represent the length of the string, we can use the variable y.

$y=4x$

Y is four times longer than X.

Hope this helps!

15.60 to 11.70 percent of change

Answers

15.6 - 11.7 = 3.9

3.9 ÷ 15.6 = .25

25% of change

What are the coefficients of the terms in this expression? 18x - 9y + 12z

Answers

Answer: 18, 9, and 12

Step-by-step explanation:

The coefficient are numbers in front of a variable or term so if you look at your equation:

18x - 9y + 12z

All of these variables have numbers in front of them hence making them the coefficients in the expression.

the coefficients in the expression: 18x - 9y + 12z are 18, 9, and 12

The mean of a set of twelve numbers is 5.5. The mean of another set of eight numbers is k. The mean of the combined set of twenty numbers is 8.5. Find the value of k.Can you please help me

Answers

mean is (sum of the values of the numbers in the set)/(how many numbers are in the set)

first bit
mean of 12 numbers is 5.5 is the same as
(12 numbers)/12=5.5

the second bit
mean of 8 numbers is k
(8 numbers)/8=k

(12numbres+8numbers)/20=8.5

interesting
one way is to solve the first and second equations for 12numbers and 8numbers

(12numbers)/12=5.5
times 12 both sides
12numbers=66

(8numbers)/8=k
multiply 8 both sides
8numbers=8k
input

(66+8k)/20=8.5
mulitply both sides by 20
66+8k=170
minus 66 both sides
8k=104
divide 8 both sides
k=13

k=13

k= 13.

You do (8.5 X 20) - (5.5 X 12), which is equal to 170 - 66 = 104
104 divided by 8 equals 13

Defenition of exponent

Answers

An exponent is a quantity representing the power to which a given number or expression is to be raised, usually expressed as a raised symbol beside the number or expression (e.g. 3 in 23 = 2 × 2 × 2).

In other words, an exponent represents how many times you multiply (or divide) a value by itself.

Answer:

The definition of an exponent is..

Step-by-step explanation:

A quantity representing the power to which a given number or expression is to be raised, usually expressed as a raised symbol beside the number or expression (e.g. 3 in 23 = 2 × 2 × 2).

Hope this helped >,<

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