1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
telo118 [61]
3 years ago
12

Help on both please ! Im a new student at this school and didn't learn this

Mathematics
1 answer:
larisa86 [58]3 years ago
5 0
For the first one, you have to convert the fractions to an improper fraction. To do that you need to multiply the bottom denominator number (3) by the whole number (1) then you need to add the numinator, so 3x1+2= 5. You have to keep the denominator so 1 2/3 is equal to 5/3. Then do the same to 2 1/5, and you get 11/5. Now you have to find a common denominator, that's basically the smallest number that both numbers can go Into, the lowest common denominator for 3 and 5 is 15. So 3x5= 15, so we have to multiply the top number by 5 which is 25. So 5/3 is equal to 25/15, then 5x3= 15, so you need to multiply 11 by 3 which is 33. So 11/5 is equal to 33/15. Then you add them. Add the numinators (25+33=58. Then you keep the denominator 15. So when u add it it's 58/15 then you need to simplify that and you get 3 13/15.

The second one you turn them into improper fractions like I told you how to before (multiply the bottom number by the whole number then add he top number, then add he same denominator.) do that for both. Then you line them right next to each other and multiply across. (I just realized that they were the same number so they are equal to 5/3 and 11/5)
Then you do 5x11 and you get 55 then do 3x5 and you get 15. 55/15 is your answer, but you need to simplify it, you need to divide 55 by 15, (not all the way just the first number) so you do 15x3 and that's 45, then you subtract that from 55, and you get 10, so then you take your denominator (15) and you answer is 3 10/15. But when you simplify it it's 3 and 2/3


Hope I helped sorry it's so long and sorry for any typos it's so long I didn't go back and check
You might be interested in
Gulf gully and jump rope road are a pretty far distance.If the scale for the map is 0.5 inches=2.3 miles,what is the actual dist
mezya [45]

Answer:

12 cm = 21.62 miles

6 cm = 11.04 miles

Step-by-step explanation:

To find the distance, set up a proportion. A proportion is two equal ratios set equal to each other. We form the ratios by using corresponding values. We write a ratio of \frac{map}{real world} and simplify.

We know \frac{map}{real world}=\frac{0.5in}{2.3 miles}. We know the distance on the map is 12 cm and 6 cm whish converts to 4.7 inches and 2.4 inches. We can write \frac{4.7in}{xmiles} and  \frac{2.4in}{xmiles}

We set them equal.

\frac{0.5}{2.3}=\frac{4.7}{x}

and

\frac{0.5}{2.3}=\frac{2.4}{x}

To solve each proportion, we'll cross multiply by multiplying numerator with denominator across the equal sign.

2.3(4.7)=0.5(x)\\10.81=0.5x\\\frac{10.81}{0.5}=\frac{0.5x}{0.5} \\21.62 miles=x

and

2.3(2.4)=0.5(x)\\5.52=0.5x\\\frac{5.52}{0.5}=\frac{0.5x}{0.5} \\11.04 miles=x

5 0
3 years ago
For an equation to have infinitely many solutions, the solution will appear as a ______ statement.
DENIUS [597]

Answer:

true

Step-by-step explanation:

for example, when you solve an equation and you get something like 16=16, which is infinitely many solutions and is also a true statement

3 0
3 years ago
A man walk for 2hr at 6km/h.he then cycled for a certain time at 16km/h.if he traveled 36km all together for how many hours did
Klio2033 [76]

Answer:

t = 1.5 hours

Step-by-step explanation:

Given that,

A man walk for 2hr at 6 km/h.

He then cycled for a certain time at 16 km/h.

He travelled 36 km all together.

We need to find for how many hours did he cycle.

Distance walked in 2 hours = 2×6 = 12 km

Distance he cycled = 36-12 = 24 km

Let he cycled for t hours. So,

t=\dfrac{24}{16}\\\\t=1.5\ h

So, he cycles for 1.5 hours.

4 0
3 years ago
Please help with this, I'm stuck.
photoshop1234 [79]

Answer:

18/5 = 3.6 (note that 3/2 = 1.5 )

the actual division is 3.387

Step-by-step explanation:

5 0
2 years ago
Question today susan has 12.6 m ribbon to make flowers if she has to make 4 flowers,how ribbon would use to make 4 flowers
Leto [7]

Step-by-step explanation:

3.15m or 3 3/20m

She has a total of 12.6m of ribbbon.

She has to make 4 flowers and each has ribbon.

You take 12.6÷4

5 0
2 years ago
Read 2 more answers
Other questions:
  • What is the value of d?   Round your final answer to the nearest tenth, if necessary. 19.0 ft 29.3 ft 59.8 ft 60.2 ft
    7·1 answer
  • Simplify.<br><br> 6^2+3^2????
    11·2 answers
  • Simplify the following expression: (9x^2+2x−5)+(6x^2−5x+4). Please explain how you found your answer
    11·1 answer
  • If 20 coins are tossed, find the probability that they'll all land on tails.
    9·1 answer
  • a case of scout cookies has 10 cartons. a carton has 12 boxes. the amount you earn on a whole case is 10(12x) dollars. what does
    8·1 answer
  • Somebody helppppp pleassse
    5·1 answer
  • Fred is 4 times as old as nathen and is also27 years older than nathen
    6·1 answer
  • Since it will not let me type it<br> PLEASE DO NOT USE GOO_GLE
    15·1 answer
  • What is the square root of 166?
    10·2 answers
  • christian has six grades from tests and IXL. they are all weighted equally. if christian grades are 100,96,96,88,70 and 100, wha
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!