Find the value of x in the equation √ x + 5 = √ x + 45.
Answers
(√x+5)^2 = x+45
x+25+10√x = x+45
25+10√x = 45
10√x = 20
√x=2
x=4
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Cuál es el resultado que se obtiene al reducir los términos semejantes en la expresión 3a + {b – 2 - [(a – b) + (b - 1)] }?
4. The diagram in this figure illustrates a _______ angle. A. right B. supplementary C. reflex D. curved
Whats 3P2 ?please need for math
Sam ran at 6km/h for 2h 20 mins. What distance did he run?
Answers
Answer:
Use the slope-intercept form to find the slope and y-intercept
Any line can be graphed using two points. Select two x
values, and plug them into the equation to find the corresponding y
values. Graph the line using the slope and the y-intercept, or the points.
Slope: 2
y-intercept: 18
Answers
a.)8/7 b.)8 c.)6/7 d.)-8
Answers
g(x) is (-7+1)/-7, or -6/-7. This simplifies to 6/7. C is the best option.
Also, since you posted a similar question earlier, I knew what to look for with g(x), but in the future, this looks like the x is not divided by the x in the denominator, and you should express this function as (x+1)/x to increase clarity.
Answers
One way to deduce this is to divide 1.50 by 2 (equaling 0.75) and then subtracting .5 to get 0.25 because if it's $1 more, then the ruler would cost 0.75 + 0.5 and the pencil would cost 0.75 - 0.5, making a total of $1.50.
Another way is to make it an equation. Let's say the ruler is r dollars and the pencil is p dollars.
r + p = 1.50
r = p + 1.00
If we know these two equations, then you can substitute p + 1.00 in the 1st equation (instead of r). This gets us:
p + 1.00 + p = 1.50
You can simplify this into:
2p + 1.00 = 1.50
Then you subtract 1.00 from both sides:
2p = 0.50
And you divide 2 from both sides:
p = 0.25
Getting you the answer of:
The pencil costs $0.25
Hope this helps! :)
Answers:
The pencil costs $0.25
The ruler costs $1.25
Explanation:
Assume that the cost of the pencil is x and that the cost of the ruler is y.
We are given that:
1- The total cost is $1.5
This means that:
x + y = 1.5 ...........> equation I
2- The ruler costs $1 more than the pencil
This means that:
y = x + 1 ............> equation II
Substitute with equation II in equation I and solve for x as follows:
x + y = 1.5
x + x + 1 = 1.5
2x = 1.5 - 1
2x = 0.5
This means that:
cost of pencil = x = $0.25
cost of ruler = 1 + 0.25 = $1.25
Hope this helps :)
Answers
Answer:
Number must be added = 160
Step-by-step explanation:
First we need to find LCM of 10,12,16 and 18.
LCM of 10,12,16 and 18 = 720
Let us write the multiplication table of 720
720, 1440, 2160, 2880 .................
We need to find the least number that must be added to 2000 so that the sum is divided exactly by 10,12,16 and 18 .
The number greater than 2000 is 2160.
Difference = 2160 - 2000 = 160
Number must be added = 160
the least common multiple is 2^4.5.3 = 240
then we have (2000 + x) = 240.k
2000 = 240.8 + 80 and 240.9 = 2160
then x = 160
Answers
Answer:
85 meters in total
Step-by-step explanation:
The submarine first descended 45 meters and then 40 meters
45+40=85