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andrew-mc [135]
3 years ago
11

Translate to a system of equations and solve.

Mathematics
2 answers:
hoa [83]3 years ago
5 0

Step-by-step explanation:

sksjjd

ksjshdjdeiejo

luda_lava [24]3 years ago
5 0

Answer:

12 and 15

Step-by-step explanation:

Let the numbers be called x and y.  We know from the first sentence that:

x + y = 27.

From the second sentence we know that x + 3 = y. (In this problem it does not matter which is x and which is y.)

Substituting in x + 3 into the first equation, we have

x + x + 3 = 27

2x + 3 = 27

2x + 3 - 3 = 27 - 3

2x = 24

x = 12

y = x+ 3 = 15

Check: does x + y = 27?  Yes, 12 + 15 = 27

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I am simplifying radicals and I've come across one that has me a bit confused.
zhenek [66]

The sqrt of (34 m^4) is  sqrt(34) times sqrt(m^4).

The sqrt of m^4 is easy ... that's just  m^2 .

The other part is more messy.  There's not much you can do with it.

                      sqrt(34) = sqrt(17) times sqrt(2). 

That doesn't help make it any simpler.
You might as well just leave it as sqrt(34). 

Then the final, simplified form of the original expression is

                          m^2 sqrt(34)
5 0
3 years ago
Convert each fraction to a decimal then a percent 4/25 3/11
sashaice [31]

Answer:

4/25=0.16=16%

3/11=0.27=27%

Step-by-step explanation:

5 0
3 years ago
Find the 65th term of the arithmetic sequence –10,9, 28; ...
SOVA2 [1]

Answer:

1206

Step-by-step explanation:

find the pattern and add. ;)

7 0
3 years ago
What is the equation of the x - 3y = 18n
Romashka-Z-Leto [24]

Answer:

if your solving for N= 1/18x + -1/6y

if your solving for X x=18n+3y

Step-by-step explanation:

Let's solve for n.

x−3y=18n

Step 1: Flip the equation.

18n=x−3y

Step 2: Divide both sides by 18.

if your solving for y then its

3 0
3 years ago
1. Based on data collected over several sessions, a statistically minded trainer of office typists modeled the linzoom in
ipn [44]

Answer:

Statement D is correct.

Step-by-step explanation:

Solution:

Data Given:

Linear Regression Relationship = Speed = 10.3 + 5.4 (hour)

Linear Regression Relationship = y = mx + c

Here,

m = slope = 5.4

c = 10.3 = y - intercept

The correct Answer is D)

Because:

As, the residual value is positive, it means the typist attained faster speed than the model predicted. As we know, residuals is the result of difference between predicted values of the model and data values. On the contrary, if residual would be negative then we would say that typist speed is slower than the model predicted.

Hence, Statement D is correct.

6 0
3 years ago
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