The value of x that will make the statement true is 1
Step-by-step explanation:
The given is:
- f(x) = x - 4
- g(x) = 2x + 3
We need to find the value of x which makes [f(x) + 2g(x)] = 7
∵ f(x) = x - 4
∵ g(x) = 2x + 3
∵ f(x) + 2g(x) = 7
- Multiply g(x) by 2
∵ 2g(x) = 2(2x + 3) = 2(2x) + 2(3) = 4x + 6
∴ 2g(x) = 4x + 6
∵ f(x) + 2g(x) = 7
∴ (x - 4) + (4x + 6) = 7
- Add the like terms in the left hand side
∴ (x + 4x) + (-4 + 6) = 7
∴ 5x + 2 = 7
- Subtract 2 from both sides
∴ 5x = 5
- Divide both sides by 5
∴ x = 1
The value of x that will make the statement true is 1
Learn more:
You can learn more about the equations in brainly.com/question/1284310
#LearnwithBrainly
Answer:
a. 1/20 liters in each glass.
b. 50 ml in each glass.
Step-by-step explanation:
a. To find how many liters are in each glass, you have to divide the 1/4 liters by 5 glasses, because the water is poured equally.
Using the division properties of fractions:
b. Use the rule of three to convert from liters to milliliters.
Now, multiply 1/20 l by 1000 ml and divide by 1 l to obtain x.
X 0 1 2 ...
y -2 -9 -16...
(y) decreases by 7/<span> (x) increases by 1, so slope =-7,
y- int=-2
this is equation c) y=-7x-2</span>
Answer:
20.
Step-by-step explanation:
You swung 11 times, and your friend swung twice as many times as that.
11x2=22
22 rounded to the nearest ten is 20.
