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Oksi-84 [34.3K]
3 years ago
7

Simplify:-3(x-4)+7(4-x)-2(8x-10)

Mathematics
1 answer:
olga55 [171]3 years ago
3 0

Answer:

-26x+60

Step-by-step explanation:

First I like to write the whole equation.

-3(x-4)+7(4-x)-2(8x-10)

Now we should distribute where ever we see it's needed.

-3x+12+28-7x-16x+20

Next we combine the like terms.

-26x+60

That's it there's nothing else we can do now, it's in simplest form.

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- a(-4-5a) - 3a(2 + a) =
Lorico [155]

Answer:

Let's simplify step-by-step.

(−a)(−4 − 5a) − 3a(2 + a)

Distribute:

= (−a)(−4) + (−a)(−5a) + −3a^2 + −6a

= 4a + 5a^2 + −3a^2 + −6a

Combine Like Terms:

= 4a+5a^2 + −3a^2+ −6a

= (5a2+ −3a^2) + (4a + −6a)

= 2a2 + −2a

Final Answer:

= 2a^2−2a!

4 0
3 years ago
Read 2 more answers
A motorboat travels 35 km in 2 hours with the current of the river. The same motorboat travels 39 km in 3 hours in a lake. Find
Svetradugi [14.3K]

Answer:

0.5km/h

Step-by-step explanation:

Assume lake has no current.

.

V=distance / time

V=39km / 3h

V=13km/h

In water Assume boat used same power travelling

V=35km / 2h

V= 12.5km/h

Current is the difference 0.5km/h

5 0
2 years ago
I need help with estimate products
Ad libitum [116K]

Answer:

What I usually do is find out the actual answer then round it. Make sure to write down that maybe you used mental math or a process of steps you have learned. Hope this was a bit helpful.

6 0
3 years ago
What is 45% 0.46 and 11/25 from least to greatest
anastassius [24]
FIRST IS 11/25 then 45% and 0.46
3 0
3 years ago
How much will a student earn in 11 weeks if she work for 16 hours each week at a rate of $8/hour
Elenna [48]
Hello!

What you would want to do first is to multiply 8 by 16. If your rate is $8 an hour and you work 16 hours, you'll need to multiply 8 by 16. Once you've done that you should now have $128. Now if you stick with your payment rate for 11 weeks, then you'll need to multiply 128 by 11. After you've done that you will have your answer of $1408

I hope this helps!
3 0
3 years ago
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