Ralph is 3 times as old as Sara. In 6 years, Ralph will be only twice as old as Sara will be then.Find Ralph's age now.
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R + 6 = 2 (S+6)
Substitute the first equation in the second one:
(3S) + 6 = 2 (S + 6)
3S + 6 = 2S + 12
S + 6 = 12
R = 18
S = 6
Check:
R is 3 times S now.
In 6 years, R will be (18 + 6) = 24, S will be (6 + 6) = 12.
24 = 2 x 12 yay
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Mary and Jan are both at the gas station at Hill and Elm. From the station, Mary drives 18 miles west and Jan drives 12 miles north. Find the distance between Mary and Jan.
165 / 26 mixed fraction
Answers
Answer:
3/4.
Step-by-step explanation:
5/16 + 7/16
= (5+7)/16
= 12/16
= 3/4.
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The required number that, when multiplied by itself 4 times, equals 256 is 4.
What is the number system?
A number system is defined as a way to represent numbers on the number line using a set of symbols and approaches. These symbols, which are known as digits, are numbered 0 through 9.
To determine the number that, when multiplied by itself 4 times, equals 256, we can take the fourth root of 256.
The fourth root of 256 can be expressed mathematically as:
x⁴ = 256
Taking the fourth root of both sides:
x = ⁴√256
x = ⁴√(4x4x4x4)
x = 4
So the number that, when multiplied by itself 4 times, equals 256 is 4.
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The number when multiplied by itself four times, equals 256, is 4.
To find the number that, when multiplied by itself four times, equals 256, we need to find the fourth root of 256.
The fourth root of a number is the number that, when raised to the power of 4, gives the original number. Mathematically, it can be represented as:
x⁴ = 256
To solve for x, we can take the fourth root of both sides of the equation:
∛(x⁴) = ∛256
Since the fourth root (∛) is the inverse operation of raising to the power of 4, it cancels out the power of 4:
x = ∛256
Calculating the cube root (∛) of 256, we find that x equals 4:
x = 4
Therefore, the number when multiplied by itself four times, equals 256, is 4.
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O (-2,-5)
O (-2, -3)
O (2, -3)
O (2, -13)
I need to know for my test plzz it’s timed
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Answer:b
Step-by-step explanation:
-12+(-66)+48 and how
Thanks in advance
Answers
Answer:
-30
Step-by-step explanation:
so we will write the -12 as it is then multiply the positive sign by the negative sign of the num 66 (bc there are paranthesis around the number) it will be - sign (example 2+(-6) is equal to -4 and because the negative sign over powers the positive sign) then we will write the +48 as it is so it will be -12-66+48 = -30 (answer is negative bc its the sign of the biggest number)
really hope this helped and good luck!