7 + 7^(7 - 7) = 8.
3 + 3 + 3/3
To obtain 490 using the number 7 four times, you can use multiplication and addition. One way to achieve this is by calculating (7 \times 7 \times 10 = 490). Here, you can represent 10 as (7 + 3), so the operation can be expressed as (7 \times 7 \times (7 + 3) = 490).
To use four sevens to make 490, you can express it as follows: ( (7 \times 7 \times 10) - (7 + 7) ). Here, ( 7 \times 7 = 49 ), and multiplying by 10 gives you 490. The subtraction of ( 7 + 7 ) is not necessary for this specific equation, but you can also think of alternative ways to use four sevens and additional operations to reach the same result.
7
To form a four-digit number using the digits 0, 1, 2, 3, 5, 6, and 7, we must ensure that the first digit is not 0 (to avoid creating a three-digit number). This leaves us with 6 options for the first digit (1, 2, 3, 5, 6, 7). For the remaining three digits, we can use any of the 7 digits (including 0) and can repeat digits. Thus, the total number of four-digit numbers is calculated as follows: (6 \times 7 \times 7 \times 7 = 6 \times 343 = 2058). Therefore, there are 2058 possible four-digit numbers.
3 + 3 + 3/3
To obtain 490 using the number 7 four times, you can use multiplication and addition. One way to achieve this is by calculating (7 \times 7 \times 10 = 490). Here, you can represent 10 as (7 + 3), so the operation can be expressed as (7 \times 7 \times (7 + 3) = 490).
4 times a number added to 7 times the number equals 33
To use four sevens to make 490, you can express it as follows: ( (7 \times 7 \times 10) - (7 + 7) ). Here, ( 7 \times 7 = 49 ), and multiplying by 10 gives you 490. The subtraction of ( 7 + 7 ) is not necessary for this specific equation, but you can also think of alternative ways to use four sevens and additional operations to reach the same result.
You divide 7 by 4 which is 1.75.
7
4k = 28 Therefore, 28/4 = 7 k = 7
To form a four-digit number using the digits 0, 1, 2, 3, 5, 6, and 7, we must ensure that the first digit is not 0 (to avoid creating a three-digit number). This leaves us with 6 options for the first digit (1, 2, 3, 5, 6, 7). For the remaining three digits, we can use any of the 7 digits (including 0) and can repeat digits. Thus, the total number of four-digit numbers is calculated as follows: (6 \times 7 \times 7 \times 7 = 6 \times 343 = 2058). Therefore, there are 2058 possible four-digit numbers.
4x + 7 = 99subtract seven from both sides4x = 92divide each side by fourx = 23
4/7
4x + 5 > 7
A negative four point five; that is: -4.5