Fourteen decreased by three times four

Mathematics

2 answers:

Snezhnost [94]2 years ago

7 0

Answer:

Step-by-step explanation:

14 - 3 x 4

P. parentheses

E. exponent

M. D. Multiplication and division

A. S. Addition and subtraction

***************************************************

P. E. there is nothing so we skip

M. 3 x 4 = 12

D. there is nothing so we skip

A. there is nothing so we skip

S. 14 - 12 = 2

Vesna [10]2 years ago

3 0

Answer:

3 times a number is 3x

decreased by 14 is '- 14'

is 4 is '= 4'

So we have:

3x - 14 = 4

Add 14 to both sides:

3x = 18

Divide 3 to both sides:

x = 6

Step-by-step explanation:

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Twenty percent of what number is 9?

vampirchik [111]

Answer:

Step-by-step explanation:

There are 100%. When divided by 5 you get twenty percent. 9 times 5 equals 45.

3 0

3 years ago

help with number 2 please i have no idea how to do this. it would be very helpful if you can show the steps

zloy xaker [14]

So in this case, we have to replace the known value.
y=3
y=-2x+3

3=-2x+3

Then we leave our unknown value alone.
$\frac{3-3}{2}$ = x

In this case, our x value would be 0.

We check it...
3=-2(0)+3
3=0+3
3=3

So y=3 x=0

For the second one we have...
y=3x+2
y=-3x-4

For this we substitute the y in any of the equation...
3x+2=-3x-4

We move the unknown values to one side and the ones without unlown values to the other side...
3x+3x=-4-2

Then we solve
6x=-6

Then we leave the unknown value alone.
x= $\frac{-6}{6}$

Then solve for x.
x= -1

Then for our y value we return to one of the original equations and substitute the x value.
y=3x+2
y=3(-1)+2
y=-3+2
y=-1

y=-3x-4
y=-3(-1)-4
y=3-4
y=-1

So in this case we got that x= -1 and y= -1

4 0

3 years ago

There are 5 cocoa pods in a bag.

Virty [35]

Answer:

416 g

Step-by-step explanation:

The mean is calculated as

mean = $\frac{sum}{count}$ , then