All categories

3 years ago

The sum of two numbers is 35. Their difference is 3. Find the numbers

Mathematics

2 answers:

STatiana [176]3 years ago

5 0

Step-by-step explanation:

let x and y represent the two numbers

x+y =35. eqn 1

x-y =3. eqn 2

let eliminate x by subtracting 2 from 1

2y =32

divide both side by 3

y = 16

put y = 16 in eqn 1

x-16 =35

x = 35-16

x = 19

x =19,

y =16

IgorLugansk [536]3 years ago

4 0

Answer:

19 and 16

Step-by-step explanation:

Let x and y be the two numbers

x+y = 35

x-y =3

Add the two equations together

x+y = 35

x-y =3

---------------

2x = 38

Divide by 2

2x/2 = 38/2

x = 19

Solve for y

x-y = 3

19-y = 3

Subtract 19 from each side

19-19 -y = 3-19

-y = -16

y =16

You might be interested in

3 on side of square root -27/125 help

frez [133]

Assuming that you mean

$\sqrt[3]{-\dfrac{27}{125}}$

we have

$\sqrt[3]{-\dfrac{27}{125}} = -\dfrac{\sqrt[3]{27}}{\sqrt[3]{125}} = -\dfrac{3}{5}$

4 0

4 years ago

The ratio of green marbles to total marbles in a bag is 2:9. The ratio of red marbles to total marbles in the same bag is 1:3. W

Ne4ueva [31]

There are more red marbles in the bag..

Because,

Ratio of green marbles to total marbles=2/9=0.222

And

Ratio of red marbles to total marbles=1/3=0.333

5 0

3 years ago

Solve each equation (Isolating first)

Dvinal [7]

$3 \times {( \frac{1}{8} )}^{2x} = 12 \\ \Leftrightarrow {( \frac{1}{8} )}^{2x} = 4 \\ \Leftrightarrow {( {2}^{ - 3}) }^{2x} = {2}^{2} \\ \Leftrightarrow {2}^{ - 6x} = {2}^{2} \\ \Leftrightarrow - 6x = 2 \\ \Leftrightarrow x = - \frac{1}{3} \\ \\ 2 {\sqrt[3]{5}}^{4x} = 50 \\ \Leftrightarrow { \sqrt[3]{5} }^{4x} = 25 \\ \Leftrightarrow {5}^{ \frac{4x}{3} } = {5}^{2} \\ \Leftrightarrow \frac{4x}{3} = 2 \\ \Leftrightarrow 4x = 6 \\ \Leftrightarrow x = \frac{3}{2}$