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iragen [17]
3 years ago
12

What is x in the equation 5y+x=45

Mathematics
1 answer:
matrenka [14]3 years ago
4 0
The answer to the question is

x= -5y + 45
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Which number is greater than 7.23 and less than 7.55? 7.59;7.17;7.6;7.3
Step2247 [10]
7.3 also written as 7.30
5 0
3 years ago
A baby was born with a weight of 10 pounds and then began to gain 2 pounds per month. Write an equation for W, in terms of t, re
Shalnov [3]

Answer: 10+2t

Step-by-step explanation: I guess not sure sorry

7 0
2 years ago
D. 10.83<br> Math question Don't Guess please show work
konstantin123 [22]
Ok so first we need to work out the vertical line in the middle (ab) using Pythagoras
Square root(7.5^2+4.9^2) to get 8.958794562

Now we know the length of the line ab so we can work out x using trigonometry
Since line ab is opposite the angle and x is adjacent (or not the hypotenuse the slope) the tan rule is used which is tan(0)=o/a
So tan(55.8)=8.9587../a
*a. *a
/tan(55.8). /tan(55.8)
a=8.9587../tan(55.8)
a=6.088390497
a=6.09
x=6.09
5 0
3 years ago
How much money is 3/4 of a dollars plus 3/10 of a dollar?​
zavuch27 [327]

Answer:

1 1/20 dollars

21/20 dollars

Step-by-step explanation:

3/4 dollars is $0.75

3/10 dollars is $0.30

.75 + .30 = 1.05

turning .05 to a fraction is 5/100 or 1/20

7 0
3 years ago
Read 2 more answers
After standardizing a NaOH solution, you use it to titrate an HCl solution known to have a concentration of 0.205 M. You perform
Gnoma [55]

Answer:

The right answer is:

(a) 0.205

(b) 0.005425

Step-by-step explanation:

The given data is:

0.213, 0.204, 0.208, 0.200, and 0.198

(a)

The mean will be:

= \frac{Sum \ of \ all \ data}{No. \ of \ data}

= \frac{0.213+ 0.204+ 0.208+ 0.200+0.198}{5}

= \frac{1.023}{5}

= 0.2046

or,

= 0.205

(b)

The standard deviation will be:

\sigma^2=\Sigma\frac{(x_i-\mu)^2}{N}

    =\frac{(0.213-0.2046)^2+...+(0.198-0.2046)^2}{5}

    =\frac{0.0001472}{5}

    =2.994\times 10^{-5}

or,

    =0.005425

7 0
3 years ago
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