All categories

3 years ago

Which ordered pair is a solution to this equation? 8x-5y=8

Mathematics

1 answer:

Alex Ar [27]3 years ago

7 0

X = 1 and y = 0
Hope I helped!

You might be interested in

A restaurant customer left $1.80 as a tip. The tax was 8% and the tip was 20% of the cost including tax.

PtichkaEL [24]

Answer:The bill before tax was $8.33

Step-by-step explanation: Divide tip by portion of bill:

1.80/0.20 = 9.00

The total bill before the tip was $9.00

Divide total bill by 1+ sales tax rate:

9.00 / 1.08 = 8.33

8 0

2 years ago

I need to know whether the answer is A, B, C, or D.

Anika [276]

The answer would be c

7 0

3 years ago

Which point represents the value of -(-2) on the number line

Nata [24]

Answer:

the answer should be c Point C

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

V=4/3? r^2 Suppose that, for the sphere in the video, instead of being told how fast the radius is changing, we're told that the

grigory [225]

Answer:

$\frac{dr}{dt}=0.01$ cm per second

$\frac{dS}{dt}=320 square centimeter per secondStep-by-step explanation:We are given that volume of sphere [tex]V=\frac{4}{3}\pi r^3$

Volume of sphere is increasing at a constant rate

$\frac{dV}{dt}=4$ cubic centimeters per second

We have to find the rate of radius at which increasing

when r= 10 cm

Differentiating w.r.t time

$\frac{dV}{dt}=\frac{4}{3}\pi\cdot3r^2\frac{dr}{dt}$

$4=4 r^2\frac{dr}{dt}$

$\frac{dr}{dt}= \frac{1}{r^2}=\frac}{1}{(10)^2}=0.01$ cm per second

Now ,we are given that surface area of sphere

$S=4\pir^2$

Differentiate w.r.t time then we get

$\frac{dS}[dt}=8\pir\frac{dr}{dt}$

$\frac{dS}{dt}=8\pi\times 20\times 2$

$\frac{dS}{dt}=320$ cm per second

5 0

3 years ago

in a bag of marbles, you have 3 green, two yellow, six blue, and nine red marbles. What is the probability of picking a red marb

BlackZzzverrR [31]

So first add all of the marbles together: 3+2+6+9=20
Because there are 20 marbles together, that would be your denominator.
All of the other numbers would be your numerator. So you would have:

3/20 green marbles
2/20 yellow marbles
6/20 blue marbles
9/20 red marbles

So your answer would be the probability of picking a red marble from the bag is 9/20 or 45%

3 0

3 years ago