2×4=8 because 2 and 4 would be the addends and their less than 5 and it equal an answer between 4 and 10
Let, the cost of a belt = x
cost of a wallet = y
Then, system of equations would be:
x + y = 42
7x + 4y = 213
Multiply 1st equation by 4,
4x + 4y = 168
Substitute it from 2nd equation,
3x = 45
x = 15
Now, substitute it in 1st equation,
15 + y = 42
y = 42 - 15 = 27
In short, Belt costs $15 and wallet costs $27
A)
15x4=60
27x4=108
60+108=
four belts and four wallets cost 168
B) 3x15=
<span>three belts cost 45</span>
angles x y z are all acute because they are less than 90 degrees
]
Answer:
a. 10.2 in²/in
10.02 in²/in
b. 10 in²/in
Step-by-step explanation:
The area of a square is given by the following function:
The average rate of change between two points a and b is:
a. For x = 5 and 5.2:
For x = 5 and 5.02
b. The instantaneous rate of change in area with respect to x is given by:
For x = 5
Answer:
False.
Step-by-step explanation:
We are asked if it is true or false that any percentage point for a score distribution must have a value equal to one of the scores.
In this case we have to:
False.
Because for example, many times the median (or 50th percentile) is the mean of the inputs in middle 2, and may not equal any data point.