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Licemer1 [7]
3 years ago
9

Evaluate 3 – 5 · 2 + 8 ÷ 4 – 2 using the correct order of operations.

Mathematics
1 answer:
soldi70 [24.7K]3 years ago
3 0
The answer is
C) -7

Multiply -5 by 2
Divide 8 by 4 :
3-10+2-2
Subtract 10 from 3 :
-7+2-2
Add -7 and 2 :
-5 - 2
Subtract 2 from -5:
-7

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2x + 3y = 1200
sesenic [268]
2500
So if we added both equations together so 2x+3x =5x and 3y+2y =5y and 1200+1300=2500 so 5x+5y=2500
3 0
4 years ago
135 in the ratio of 9:6
stepladder [879]

Step-by-step explanation:

9x+6x=135

15x=135

x=9

9x=81

6x=54

7 0
3 years ago
Help!<br> ANYTHING IS APPRECIATED
Debora [2.8K]

Answer:

A:90

B:105

C:60

D:165

Step-by-step explanation:

Brainliest?

7 0
3 years ago
write the equation in standard form of the line that passes through the point (1,26) and has a slope of -0.4
katovenus [111]
The beginning formula that you start with is y=m(x)+b
after the problem is written into the formula your ready to start.

It should look like this:

26y=-0.4(1)+b

to get the entire formula you've gotta find the
y-intercept or "b"

to start solving multiply the "m" by the "x" A.K.A:

-0.4×1

you should come up with the answer -0.4 since everything multiplied by 1 is still the same thing depending on if its positive or negative

after you've finished solving the multiplication part the equation should look slightly different like this:

26y=-0.4+b

the next step is the get "y" by itself since right now is a variable.

also you should always remember what ever process of simplifying by the same number to get rid of it in a "y=m(x)+b" equation should be done the same to the other side

take a look at the "-" sign in front of 0.4 this would mean that you are going to do the oppisite opperation to cancel it out so you would be adding the same number to either side. after adding the -0.4 to itself that would leave "b" by itself the problem should now look like this:

(26y+0.4)=b

forget about the y for now and focus on the (26+0.4)
you should get 26.4=b

insert this into the original equation of "y=m(x)+b" and this should look like this:

y=-0.4(x)+12.4
3 0
4 years ago
jack ran 1.5 kilometers on the treadmill, then walked 475 meters before running another 2.5 kilometers how many kilometers did j
qaws [65]
We need first consider what data we have available:
a = run 1.5km
b = then run 2.3km
c = walk 475m
x = a + b + c = how many km he done on treadmill
before we go anywhere, we need to unify the units, we need to change meters to fraction of kilometers, kilo meant 1000, therefore:
1km = 1000m
475m / 1000m = 0.475km
now we can substitute:
x = a + b + c = 1.5km + 2.3km + 0.475km = 4.275km
we can round that up to first decimal point and then:
4.275km = 4.3km
answer is then:
jack done on the treadmill 4.275km or rounded up 4.3km
3 0
3 years ago
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