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neonofarm [45]
3 years ago
13

A + B= 1233445667788

Mathematics
2 answers:
Archy [21]3 years ago
8 0
Should be no lmk if it’s not
JulsSmile [24]3 years ago
6 0

Answer:

b) no

Step-by-step explanation:

(a + b)/2 = c

Multiply both sides by 2.

a + b = 2c

ab/2 = 2c

ab = 4c

a + b = 2c and ab = 4c are not equivalent expressions.

Answer: b) no

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The sum of two numbers is 43 . The smaller number is 19 less than the larger number. What are the numbers?
Setler [38]
Let the smaller number be x and the larger number be y.
We can calculate this by using simultaneous equation, aka listing 2 equations out.
From given,
X + y = 43
Let this be equation no. 1
X + 19 = y
Let this number be equation 2.
We can do simultaneous equations either by substitute method or elimination. In this case I'm using substitute.
We can already obtain the value of y (in terms of x) in euqation no. 2, so all we gonna do is to put y into equation 1.
X + x + 19 = 43
Solve this by algebra.
2x = 43 - 19
X = 12
Now we know the exact value of x
Now substitute x = 12 into equation no. 2
12 + 19 = y
Y = 31
So the answer is 12 and 31
7 0
3 years ago
What is the value of x?
vredina [299]

Answer:

<em>x=</em><em>3</em><em>0</em><em>°</em>

hopefully this answer can help you to answer the next question

6 0
3 years ago
Find the slope of the line through each pair of points. (11, 1) (-7, 18)
Sonbull [250]

\bf (\stackrel{x_1}{11}~,~\stackrel{y_1}{1})\qquad (\stackrel{x_2}{-7}~,~\stackrel{y_2}{18}) \\\\\\ slope = m\implies \cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{18-1}{-7-11}\implies \cfrac{17}{-18}

3 0
3 years ago
Read 2 more answers
Need help
sveta [45]

Answer:

20

Step-by-step explanation:

25 + 7x = 165

25 + 7(20) = 165

25 + 140 = 165

6 0
3 years ago
1. What is an equation of the line through (3, 12) with slope = 3?​
mafiozo [28]

Answer:

see below

Step-by-step explanation:

We can use point slope form

y - y1 = m(x-x1)

where m is the slope and ( x1,y1) is a point on the line

y-12 = 3(x-12)

If we want it in slope intercept form

Distribute

y-12 = 3x-36

Add 12 to each side

y-12+12 = 3x-36+12

y = 3x-24

8 0
3 years ago
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