Ask question

Ask question

All categories

3 years ago

11

7/8 times 1/8 times 2 1/4

1 answer:

sattari [20]3 years ago

8 0

$\displaystyle \\ 
 \frac{7}{8} \times \frac{1}{8} \times 2\frac{1}{4} = \frac{7}{8} \times \frac{1}{8} \times \frac{9}{4} = \frac{7\times 1\times 9}{8\times 8\times 4}= \boxed{\frac{63}{256}}$

You might be interested in

Which expression and value represents 9 less than the quotient of 18 and 3?

olga55 [171]

Answer:

kinda hard ,

Step-by-step explanation:

6 1

3 years ago

Read 2 more answers

How many kilometers can that tortoise walk in 1 hour

vfiekz [6]

5 kilometers

Jjjjjjkkkk

6 0

3 years ago

1. What is the value of the y variable in the solution to the following system of equations?

ollegr [7]

Part 1)

we have

$3x-6y=3$ ------> equation A

$7x-5y=-11$ ------> equation B

Multiply by $-7$ the equation A

$-7(3x-6y)=-7*3$

$-21x+42y=-21$ ------> equation C

Multiply by $3$ the equation B

$3*(7x-5y)=-11*3$

$21x-15y=-33$ -------> equation D

Adds equation C and equation D

$-21x+42y=-21 \\21x-15y=-33\\---------- \\ 42y-15y=-21-33\\27y=-54 \\ y=-2$

therefore

<u>the answer Part 1) is the option A </u>

$y=-2$

Part 2)

we have

$3x+y=6$

$y=-3x+6$ ------> equation A

$6x+2y=8$

Simplify Divide by $2$ both sides

$3x+y=4$

$y=-3x+4$ ------> equation B

the lines A and B are parallel lines, because the slope m is equal

so

The system has no solution

therefore

<u>the answer Part 2) is the option D</u>

There is no x value as there is no solution to the system.

Part 3)

we have

$4x+2y=6$ ------> equation A

$x-y=3$

$y=x-3$ ------> equation B

substitute equation B in equation A

$4x+2[x-3]=6$

$6x-6=6$

$6x=12$

$x=2$

therefore

<u>the answer part 3) is the option D</u>

$x=2$

Part 4)

Let

x---------> The number of one-step equations

y---------> The number of two-step equations

we know that

$x+y=1,120$

$x=1,120-y$ -------> equation A

$3x-2y=1,300$ ------> equation B

substitute equation A in equation B

$3[1,120-y]-2y=1,300$

$3,360-5y=1,300$

$5y=3,360-1,300$

$5y=2,060$

$y=412$

therefore

<u>the answer part 4) is the option D</u>

$y=412$

8 0

3 years ago

Read 2 more answers

A motorboat takes 5 hours to travel 200 miles going upstream. The return trip takes 4 hours going downstream. What is the rate o

dsp73

Answer:

rate of motorboat: b

rate of current: c

So the rate the boat travels upstream is $b - c$, and the rate it travels downstream is $b + c$

Step-by-step explanation:

d = rt

200 = (b - c)\cdot 5

200 = (b + c)\cdot 4

b - c = 40

b + c = 50

Adding these equations, we get:

2b = 90

b = 45

So

c = 50 - 45 = 5

<u>Therefore the rate of the boat is 45kph, and the rate of the current is 5kph</u>

Hope this helps :)

4 0

3 years ago

Solve the proportion <br><br> z/5 = 2/1<br><br> z =

ira [324]

Answer:

Hi! The correct answer is z=10

Step-by-step explanation:

<em><u>~Solve for z by simplifying both sides of the equation, then isolating the variable~</u></em>

<em><u /></em>

3 0

3 years ago

Read 2 more answers