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2 years ago

1/3+1/4 using simplest form

Mathematics

1 answer:

BlackZzzverrR [31]2 years ago

8 0

Well
1/3-1/4=1/12
so 1/3=1/12+1/4=1/12+3/12=4/12
and 1/4=-(1/12-1/3)=-1/12+1/3=-1/12+4/12=3/12
4/12+3/12=7/12

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I'm very confused <br> Please help ASAP!!!

harina [27]

Answer:

First case

0.3m = r

0.3m = 18

m = 18/0.3

m = 60 mins.

Second case

0.3m = r

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0.3m = r

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0.3m = r

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Hope this helps!

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3 years ago

Read 2 more answers

Your mother gave you $13.32 with which to buy s present. This covered 3/5 of the cost. How much did the present cost?

Oliga [24]

Answer:

The cost of the present is $22.20

Step-by-step explanation:

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2 years ago

From her home, Glera traveled 5.8 miles north to the grocery stare, then 2.1 mlles west to the library. What is the distance tho

BigorU [14]

Answer:

6.16 miles

Step-by-step explanation:

When solving word problems like these, I like to start by drawing a picture.

So, Glera starts at her home and moves north by 5.8 miles. Then, she walks west by 2.1 miles to the library. The problem wants you to find the distance from her home to the library.

I've attached a drawing I made to help me visualize the problem. The distance from her home to the library is the hypotenuse of the triangle. To solve for it, you would use the equation $a^{2}$ + $b^{2}$ = $c^{2}$ .

a and b are the sides of the triangle, and c is the hypotenuse.

$5.8^{2}$ + $2.1^{2}$ = $c^{2}$

33.64 + 4.41 = $c^{2}$

38.05 = $c^{2}$

To find c, you would take the square root of 38.05, which is about 6.16 if you use a calculator.

So, the distance from her home to the library is 6.16 miles!

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2 years ago

Given the unbalanced equation: Al + O2 → Al2O3 When this equation is completely balanced using smallest whole numbers, what is t

zlopas [31]

Answer:

The sum of the coefficients is 9.

Step-by-step explanation:

A chemical equation shows the chemicals that react (the reactants) followed by an arrow followed by the chemicals that are produced by the reaction (the products).

We have the following unbalanced equation

$\mathrm{Al}+\mathrm{O_2}\rightarrow\mathrm{Al_2O_3}$

To balance an equation, we add a coefficient to the front of each element or compound that requires it. Essentially you are multiplying the amount of atoms or compounds on one side to match the amount on the other side.

The balanced chemical equation is

$\mathrm{4Al}+\mathrm{3O_2}\rightarrow\mathrm{2Al_2O_3}$

The sum of the coefficients is equal to the sum of the number of reacting molecules and the number of products produced in the balanced chemical equation.

Therefore,

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2 years ago

davis bought some candy for $35. this was seven dollars less than four times what he bought at the movie store. how much did he

bezimeni [28]

The amount spent at the movie store is $ 10.5

<h3><u>Solution:</u></h3>

Given that Davis bought some candy for $ 35

This was seven dollars less than four times what he bought at the movie store

Which means that $ 35 is equal to seven dollars less than four times what he bought at the movie store

Let "m" be the amount spent at the movie store

$ 35 = seven dollars less than four times what he bought at the movie store

35 = 4m - 7

35 + 7 = 4m

42 = 4m

Thus the amount spent at the movie store is $ 10.5

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2 years ago