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Mrac [35]
3 years ago
11

PLEASE HELP MEEEEEEEE ILL MARK YOU BRAINLIEST

Mathematics
2 answers:
Rudiy273 years ago
8 0

Answer:

5.60

Step-by-step explanation:

To find what 10 pens cost we have to go down to the cost of 1 pen first.

If 3 pens costs 1.68 then the cost of 1 pen is 1.68 divided by 3.

\frac{1.68}{3} = 0.56  

If one pen costs 0.56 then 10 pens cost 0.56 multiplied by 10.

0.56 × 10 = 5.60

Andre45 [30]3 years ago
5 0

Answer:

16.8

Step-by-step explanation:

You might be interested in
Over a period of 12 weeks, Carlos ran an average of 21 miles per week. How many kilometers is this? Round your answer to the nea
velikii [3]

Answer:

405.80

Step-by-step explanation:

So, we know Carlos ran 21 miles per week, for 12 weeks....

That makes 21 mi/wk x 12 weeks = 252 miles.

Then we know each km is 0.621 mile.

So, we divide 252 miles by 0.621 mile/km to get= 405.80 km

Dividing miles by miles/km gives us the unit we want (km).

<u>There was a trap in this question,</u> because if instead of dividing the 252 miles by 0.621 you would have multiplied it, you would have gotten another answer listed... just not the right one. :-)

5 0
3 years ago
Which trinomial is the product of the expression below ? (2R-3) (R+12)
anastassius [24]
Answer:
2R^2 + 21R - 36

Explanation:
To answer this question, we will follow these steps:
1- expand the brackets
2- gather like terms

Steps are as follows:
(2R-3)(R+12) = 2R(R) + 2R(12) - 3(R) - 3(12)
                      = 2R^2 + 24R - 3R - 36
                      = 2R^2 + 21R - 36

Hope this helps :)

8 0
3 years ago
Read 2 more answers
Give f(x) = 3x + 3, solve for x when f(x) = 6
Tems11 [23]

Answer:

x = 1

Step-by-step explanation:

f(x) = 3x + 3

f(x) = 6

=> 3x + 3 = 6

=> 3x = 3

=> x = 1

7 0
2 years ago
Read 2 more answers
5 1/2 is how many half cups?
QveST [7]
11 cups is how many 5 and a half cups is in half cups
3 0
2 years ago
5. Simplify: 56 = 7 - 3 [4 + {8 - 4 ( 4 + 5 - 3 )}]​
shutvik [7]

Answer:

36

Step-by-step explanation:

56=7-3[4+{8-4(4+5-3)}]

56=7-3[4+{4(4+5-3)}]

56=7-3[4+{16+20-12)}]

56=7-3[4+24]

56=4[28]

56=92

56-56=92-56

36

3 0
3 years ago
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