All categories

2 years ago

Someone who understands? Please Hély me

Mathematics

1 answer:

Dahasolnce [82]2 years ago

8 0

Slope/-2/2 y-inetercept/1

You might be interested in

The sum of angle 1 and angle 4 and the sum of angle 3 and angle 4 are each equal to 180 degrees by the definition of supplementa

S_A_V [24]

Supplement Postulate? they are supplementary.

4 0

3 years ago

How do u do question 10

suter [353]

I have no idea what that thing is talking about I agree with you

4 0

2 years ago

Simplify X^2+6-27/x-3

Gemiola [76]

Answer:

(x + 9)

Step-by-step explanation:

X² + 6 - 27

(x-3)

1. Factor the numerator:

(x-3) (x + 9)

(x-3)

2. cancel the (x - 3) from numerator and denominator

3 Answer left is (x + 9)

5 0

3 years ago

During an experiment measuring the change in temperature of a chemical reaction, your digital thermometer breaks. You have the s

hichkok12 [17]

Answer:

Step-by-step explanation:

definitely b ..........

3 0

3 years ago

Drive to work in 45 min., bus to work takes 1 hr 15 min. If the average rate on the bus is 16 mph slower than his driving rate,

stich3 [128]

Answer:

30 miles

Step-by-step explanation:

Given: Drive to work in 45 min.

Bus would take to travel= 1 hr 15 min

Average rate on the bus is 16 mph slower than his driving rate.

Lets assume the average driving rate be "x" mph.

∴ Average rate of bus= $(x-16)\ mph$

Now converting unit of time taken to travel to work.

Remember; 1 hours= 60 minutes.

Time taken for drive to work= $\frac{45\ minutes}{60\ minutes} = 0.75\ hour$

Time taken in bus to work= 1 hour and 15 minutes= $60\ minutes+ 15\ minutes= 75\ minutes$

∴ Time taken in bus to work in hours= $\frac{75\ minutes}{60\ minutes}= 1.25\ hours$

Considering the distance remain constant to travel for work.

Next, forming an equation to find the value of x.

As we know, $distance= speed\times time$

⇒ $x\times 0.75= (x-16)\times 1.25$

Using distributive property of multiplication.

⇒ $0.75x= 1.25x-20$

Adding both side by 20

⇒ $0.75x+20= 1.25x$

Subtracting both side by 0.75x

⇒ $20= 0.5x$

Dividing both side by 0.5

⇒ $x= \frac{20}{0.5}$

∴ $x= 40\ mph$

Hence the average rate for drive to work is 40mph.

Now, subtitiuting the value of x to find the distance travelled to work.

Distance travelled= $40\times 0.75= 30\ miles$

Hence, distance travelled to work is 30 miles.

6 0

3 years ago