All categories

3 years ago

What is 3/5 + 1/2? As in fractions, I can’t figure it out!! :(

Mathematics

2 answers:

Kipish [7]3 years ago

7 0

Answer:

1 1/10

Step-by-step explanation:

3/5 + 1/2

We can't directly add together because the denominator is not equal, so we do that.

The lowest common factor of the denominator is 10.

3 × 2 / 5 × 2 + 1 × 5 / 2 × 5

6/10 + 5/10

Now that they are equal, add them together (only the numerator will be added and denominator will not change).

6/10 + 5/10 = 11/10

As you can see, the numerator exceeds the denominator by 1 so you make 1 whole number and leave 1 as the numerator. This is a mixed fraction.

1 1/10

ella [17]3 years ago

5 0

Step-by-step explanation:

$\frac{3}{5} + \frac{1}{2} \\ \\ = \frac{3 \times 2 + 1 \times 5}{5 \times 2} \\ \\ = \frac{6 + 5}{10} \\ \\ = \frac{11}{10} \\ \\ = 1 \frac{1}{10}$

You might be interested in

A soccer ball kicked from the ground with an initial velocity of 32 ft/s is given by the function

Greeley [361]

Answer:

In words the answer is between t=0 and t=2.

In interval notation the answer is (0,2)

In inequality notation the answer is 0<t<2

Big note: You should make sure the function I use what you meant.

Step-by-step explanation:

I hope the function is h(t)=-16t^2+32t because that is how I'm going to interpret it.

So if we can find when the ball is on the ground or has hit the ground (this is when h=0) then we can find when it is in the air which is between those 2 numbers.

0=-16t^2+32t

0=-16t(t-2)

So at t=0 and t=2

So the ball is in the air between t=0 and t=2

Interval notation (0,2)

Inequality notation 0<t<2

6 0

3 years ago

Read 2 more answers

Long division.... <br> (M^2-7m-11) ÷ (m-8)<br><br> We are so lost....

sergejj [24]

Well, (m^2-7m-11) ÷ (m-8) = m+1 with a remainder of -3

6 0

3 years ago

Find the volume and area for the objects shown and answer Question

klio [65]

Step-by-step explanation:

You must write formulas regarding the volume and surface area of the given solids.

$\bold{\#1\ Rectangular\ prism:}\\\\V=lwh\\SA=2lw+2lh+2wh=2(lw+lh+wh)\\\\\bold{\#2\ Cylinder:}\\\\V=\pi r^2h\\SA=2\pi r^2+2\pi rh=2\pir(r+h)\\\\\bold{\#3\ Sphere:}\\\\V=\dfrac{4}{3}\pi r^3\\SA=4\pi r^2$

$\bold{\#4\ Cone:}\\\\V=\dfrac{1}{3}\pi r^2h\\\\\text{we need calculate the length of a slant length}\ l\\\text{use the Pythagorean theorem:}\\\\l^2=r^2+h^2\to l=\sqrt{r^2+h^2}\\\\SA=\pi r^2+\pi rl=\pi r^2+\pi r\sqrt{r^2+h^2}=\pi r(r+\sqrt{r^2+h^2})\\\\\bold{\#5\ Rectangular\ Pyramid:}\\\\V=\dfrac{1}{3}lwh\\\\$

$\\\text{we need to calculate the height of two different side walls}\ h_1\ \text{and}\ h_2\\\text{use the Pythagorean theorem:}\\\\h_1^2=\left(\dfrac{l}{2}\right)^2+h^2\to h_1=\sqrt{\left(\dfrac{l}{2}\right)^2+h^2}=\sqrt{\dfrac{l^2}{4}+h^2}=\sqrt{\dfrac{l^2}{4}+\dfrac{4h^2}{4}}\\\\h_1=\sqrt{\dfrac{l^2+4h^2}{4}}=\dfrac{\sqrt{l^2+4h^2}}{\sqrt4}=\dfrac{\sqrt{l^2+4h^2}}{2}$

$\\\\h_2^2=\left(\dfrac{w}{2}\right)^2+h^2\to h_2=\sqrt{\left(\dfrac{w}{2}\right)^2+h^2}=\sqrt{\dfrac{w^2}{4}+h^2}=\sqrt{\dfrac{w^2}{4}+\dfrac{4h^2}{4}}\\\\h_2=\sqrt{\dfrac{w^2+4h^2}{4}}=\dfrac{\sqrt{w^2+4h^2}}{\sqrt4}=\dfrac{\sqrt{w^2+4h^2}}{2}$

$SA=lw+2\cdot\dfrac{lh_1}{2}+2\cdot\dfrac{wh_2}{2}\\\\SA=lw+2\!\!\!\!\diagup\cdot\dfrac{l\cdot\frac{\sqrt{l^2+4h^2}}{2}}{2\!\!\!\!\diagup}+2\!\!\!\!\diagup\cdot\dfrac{w\cdot\frac{\sqrt{w^2+4h^2}}{2}}{2\!\!\!\!\diagup}\\\\SA=lw+\dfrac{l\sqrt{l^2+4h^2}}{2}+\dfrac{w\sqrt{w^2+4h^2}}{2}\\\\SA=\dfrac{2lw}{2}+\dfrac{l\sqrt{l^2+4h^2}}{2}+\dfrac{w\sqrt{w^2+4h^2}}{2}\\\\SA=\dfrac{2lw+l\sqrt{l^2+4h^2}+w\sqrt{w^2+4h^2}}{2}$

6 0

2 years ago

PLS HELP ILL MARK BRAINLEST PLUS ADDITIONAL POINTSS!!

Serga [27]

Answer:

114

Step-by-step explanation:

15 x 2 + 9 x 2 + 11 x 3 + 11 x 3 = 114

(the bottom portion is equal to 3 x 11)

7 0

2 years ago

Read 2 more answers

Quadratic equation

Murrr4er [49]

Answer:

Step-by-step explanation:

x - age of a son three years ago

3x - age of a father three years ago

x + 3 - age of the son now

3x + 3 - age of the father now

x + 3 + 5 - age of the son in five years time

3x + 3 + 5 - age of the father in five years time

in five years time, the father will be twice as old as his son, so:

3x + 3 + 5 = 2(x + 3 + 5)

3x + 8 = 2x + 16

3x - 2x = 16 - 8

x = 8

x + 3 + 4 - age of the son in four years time

8 + 3 + 4 = 15

3x + 3 + 4 - age of the father in four years time

3×8 + 3 + 4 = 31

the sum of their ages in four years time:

15 + 31 = 46

8 0

3 years ago