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3 years ago

I NEED HELP ON THIS!!!!!

Mathematics

1 answer:

seropon [69]3 years ago

8 0

#1 pipers pepperoni pieces- $0.41
noras nummy nuggets- $0.34
noras nummy nuggets is better
#2 +65?

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Problem 2.9 a runner completes the 200-meter dash with a time of 20.19 seconds. part a what was the runner's average speed in me

Elina [12.6K]

Answer:

Average speed = 9.91 m/s

Explanation :

Total distance covered by a runner = 200 m

Time taken to complete this distance = 20.19 sec

We need to find the average of runner speed in meter/sec

We use the speed, distance, time formula

$speed = \frac{distance}{time}$

speed = $\frac{200}{20.19}$

Average speed = 9.91 m/s

that's the final answer.

I hope it will help you.

8 0

3 years ago

Which is irrational: the square root of 254 or of 361

shutvik [7]

Well 361 is 19^2 so the square root of 361 is 19 and is not irrational.

Therefore, the square root of 254 is irrational.

3 0

3 years ago

Write a division equation that has a solution of 12. Prove that your equation has a solution of 12 using algebraic methods.

IRINA_888 [86]

Answer:

The required equation is $\frac{y}{6} =2$ .

Step-by-step explanation:

Consider the provided information.

Write a division equation that has a solution of 12.

The required division equation is shown below:

$\frac{y}{6} =2$

Solve the above equation a shown.

$\frac{y}{6}\times 6=2\times 6$

$y=12$

Now check this with algebraic method.

The required tape diagram is shown below:

$\frac{12}{6} =2$

$2=2$

Which is true, Hence 12 is the correct answer.

3 0

4 years ago

David is buying two CDs. His total before tax is $28.00. If the sales tax rate is 7%, how much tax will he pay?

Savatey [412]

$29.96 because 7% of 28 is 9.96 and 28+29.96 if you want to check my answer get a calculator and do 28x107%

6 0

3 years ago

Are the two figures congruent?

geniusboy [140]

Answer:

No, because the reflection of ABC is not congruent to A’B’C’.

Step-by-step explanation:

we know that

The rule of the reflection across the line y=x is equal to

(x,y) -------> (y,x)

A(-6,6) -------> A'(6,-6) ----> is ok

B(-3,3) ------> B'(3,-3) ----> is ok

C(-8,2) ------> C'(8,-2) ----> is not ok ( is not a reflection acros the line y=x)

therefore

The triangles are no t congruent, because the reflection of ABC is not congruent to A’B’C’

6 0

3 years ago