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
asambeis [7]
3 years ago
9

(a) Tom says that 1/5 + 7/20 = 8/25

Mathematics
2 answers:
mezya [45]3 years ago
7 0

numerator = top part of the fraction

denominator = bottom part of the fraction

* means multiply

a.

you can only add the numerator when the denominator is the same

cant add the denominator

denominator has to be the same

1/5 = 4/20

4/20 + 7/20 = 11/20

b.

1 7/8 = 15/8

3/4 ÷ 15/8 =

3/4 * 8/15 =

24/60 = divide both top and bottom by 12 =

2/5

maks197457 [2]3 years ago
4 0

Step-by-step explanation:

a)1/5+ 7/20

1.find the CM of both denominators

2.multiply both the denominator and the numerator using the CM

=(1/5)×20 +(7/20)

=20/100 +35/100

since you multiply

3.Now add both numerators ( don't add the denominators)

=the answer is 55/100

You might be interested in
Simplify :<br>(3÷7x+5÷4y)2​
marissa [1.9K]

Answer:

6/7x+5/2y

Step-by-step explanation:

I actually don't know

3 0
3 years ago
For the following right triangle, find the side length x. Round your answer to the nearest hundredth.
Pani-rosa [81]

Answer:

x = 14.25

Step-by-step explanation:

Start with a^2 + b^2 = c^2

a = 11

b = x

c = 18

plug in and solve

11^2 + x^2 = 18^2

121 + x^2 = 324 - Simplify

x^2 = 203 - subtract 121 from both sides

x = 14.247 rounds to 14.25 - square root on both sides

7 0
3 years ago
10 – 7x = 2 - 8x help :)
Rudik [331]
10-7x=2-8x

We move all terms to the left:

10-7x-(2-8x)=0

We add all the numbers together, and all the variables

-7x-(-8x+2)+10=0

We get rid of parentheses

-7x+8x-2+10=0

We add all the numbers together, and all the variables

x+8=0

We move all terms containing x to the left, all other terms to the right

x=-8
4 0
3 years ago
Read 2 more answers
The lines on the graph below represent the cost of apples at four different stores,
rewona [7]

Answer:

The store is the cost of apples the least is store A

Step-by-step explanation:

On the graph the lowest line is A which means the prices are lower for the pounds of apples.

At Store A is the cost of apples the least. This is because it always has the lowest price for each pound compared to the other lines.

4 0
3 years ago
Sheila mixed 3 ounces of blue paint with two ounces of yellow paint she decided to create 20 oz of the same mixture how many oun
ololo11 [35]
3b + 2y = 5g
20g ÷ 5g = 4
4 x 2 = 8
8 oz of yellow paint
8 0
2 years ago
Other questions:
  • A television with a price of
    13·1 answer
  • An oblique prism is created using rhombuses with edge lengths of 25 units. The area of one rhombus is 600 sq units. The perpendi
    13·2 answers
  • Sketch a normal curve has a mean of 95 standard deviation of 12​
    15·1 answer
  • What is a perfect squares​
    8·2 answers
  • 13. Distributive Property<br> 3(x - 1) = 3x - ?
    12·2 answers
  • Why do women get paid less than men do
    11·2 answers
  • c) Tyler’s brother earns $12 per hour. The store offers him a raise—a 5% increase per hour. After the raise, how much will Tyler
    12·1 answer
  • The sum of the digits of a two-digit number is 12. The number formed by reversing the digits is 54 more than the original number
    14·1 answer
  • According to a survey of 100 people regarding their movie attendance in the last year, 40 had seen a science fiction movie, 55 h
    12·1 answer
  • What is the value of the expression 11 + (fraction 1 over 2)4 ⋅ 48?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!