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spin [16.1K]
3 years ago
15

Combine like terms to simplify (5x+2) + (4x+5)

Mathematics
1 answer:
Gnesinka [82]3 years ago
6 0
(5x+2)+(4x+5) = 9x+7
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The sum of a number xx and 4 equals 12. an equation that represents this sentence is
lora16 [44]
X + 4 = 12

This is because the question gives you everything you require for this sentence to be formed. 12 is the final answer. 4 is added on and x is basically the number that is to be found.
5 0
2 years ago
Find the equation of the line parallel to y=x-3 that also intersects the points (3,-2)
Reika [66]

Answer:

y = x - 5

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = x - 3 ← is in slope- intercept form

with slope m = 1

• Parallel lines have equal slopes, hence

y = x + c ← is the partial equation of the parallel line.

To find c substitute (3, - 2) into the partial equation

- 2 = 3 + c ⇒ c = - 2 - 3 = - 5

y = x - 5 ← equation of parallel line

3 0
3 years ago
A survey of 2,000 doctors showed that an average of 3 out of 5 doctors use brand X aspirin. How many doctors use brand X aspirin
VladimirAG [237]
This is a proportion problem that involves cross-multiplication
Set your problem up like so:
\frac{x}{2,000} = \frac{3}{5}

Now cross multiply
2,000 x 3 = 6,000
now you're left with 5x = 6,000
Now divide by 5 on both sides
Answer is 1,200
7 0
3 years ago
An atom has 3 protons and 4 neutrons and 2 electrons, what is the overall charge on this atom
Lubov Fominskaja [6]

Answer:

+1

Step-by-step explanation:

Each Proton is +1

Each Neutron is 0

Each Electron is -1

1+1+1+0+0+0+0-1-1=1

4 0
2 years ago
5\7m-2-6\7m=-13 what is the answer
Butoxors [25]
5/7m - 2 - 6/7m = -13
5/7m - 6/7m - 2 = -13
-1/7m - 2 = -13
-1/7m = -11
-m/7 = -11
-m = -77
m = 77
7 0
3 years ago
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