WebIf 3 x−y=27 and 3 x+y=243, find the value of x. A 0 B 2 C 4 D 6 Medium Solution Verified by Toppr Correct option is C) Given, 3 x−y=27 and 3 x+y=243 3 x−y=3 3 3 x+y=3 5 As bases are equal powers must be equal x−y=3 and x+y=5 Adding them, x−y+x+y=8 2x=8 x=4 Thus, 4−y=3 y=1 Was this answer helpful? 0 0 Similar questions The value of (64 … WebAnswer (1 of 7): x={42} PREMISES x:49::6:7 CALCULATIONS x:49::6:7 7x=6(49) 7x=294 7x/7=294/7 x=294/7 x= 42 PROOF If x=42, then the proportions x:49::6:7 42:49::6:7 and 6:7::6:7 satisfy the solution set x=42 of the ratio 42:49=6:7 C.H.

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WebIf we want to calculate values that are out of this range, we can take our ratio and turn it into a proportion, with the W value being our unknown or what we want to figure out. For instance, 25% is represented as 25/100 in fraction form. If we want to know what 25% of 200 is, we can set up the following proportion: Web10 jun. 2024 · Answers. We have to find the value of the function at different values of x: according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly. pecks anchovette

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Web1 jul. 2024 · In the question, we are given that 343ˣ = 49⁴ ⁻ ˣ, and are asked to find the value of x. We try to solve the exponential equation, using the laws of exponents in the … Web343x = 494−x 343 x = 49 4 - x Create equivalent expressions in the equation that all have equal bases. 73x = 72(4−x) 7 3 x = 7 2 ( 4 - x) Since the bases are the same, then two … WebIf 7x = 343, then the value of x is 49. With simple variable equations like this, we just have to divide both sides of the equation by the multiple before x. {eq}7x \div 7 = 343 \div 7 {/eq} {eq}x = 49 {/eq} It is important that we always perform the same task with both sides, of the equation or we will not get the correct answer. pecks anchovette australia