3 years ago

Twice the difference of a number And 6 equals 5

Mathematics

1 answer:

Annette [7]3 years ago

3 0

Answer:

x = 11/2

Step-by-step explanation:

solve : 2x-6 = 5

2x-6+6= 5+6 add 6

2x = 11 divid by 11

x = 11/2

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Solve for x enter the solutions from the least to greatest x2+7=43 lesser x= Greater x=

Snowcat [4.5K]

Answer:

x = ±6

Step-by-step explanation:

Step 1: Write out equation

x² + 7 = 43

Step 2: Subtract 7 on both sides

x² = 36

Step 3: Square root both sides

√x² = √36

x = ±6

7 0

3 years ago

If y = - 4/5x - 2, what is the value of x when y = - 9

MrRa [10]

Y = -4/5 x - 2
-9 = -4/5 x - 2
-4/5 x = -9 + 2 = -7
-4x = 5(-7) = -35
x = -35/-4 = 35/4

3 0

3 years ago

If a solution has 24g of sugar in 130ml of water, what is its concentration?

Jobisdone [24]

Answer: concentration = 15.58%

Step-by-step explanation:

Given: mass of sugar = 24 g = 24 ml [ ∵ 1 g = 1 ml]

Volume of solution = Quantity of water + quantity of solute

= 130 +24 ml

= 154 ml

Concentration = $\dfrac{mass\ of\ solute}{Volume\ of\ solution}\times100$

$=\dfrac{24}{154}\times 100\\\\\approx15.58\%$

Hence, the concentration =15.58%

3 0

3 years ago

Please help!!! I have no idea why, but I can’t solve these problems!!!!

zaharov [31]

I don’t understand

5 0

3 years ago

If f(x))= x/2 + 8, what is f(x) when x=10

Inga [223]

10 divided by 2 is 5, 5 + 8 is 13
thus f(10)= 13
hope this helps

6 0

3 years ago

Read 2 more answers