Mathematics: 9 is 25% of what number ?

9 is 25% of what number ?, №17888018, 11.01.2020 10:46

Mathematics

Mike and jamal are 9 miles apart, and are planning to meet up. mike is walking at an average speed of 3 miles per hour to meet jamal. jamal is driving at an average speed of 25 miles per hour to meet mike. which equation can be used to find t, the time it takes for mike and jamal to meet? a.25t – 3t = 0 b.25t – 3t = 9 c.25t + 3t = 1 d.25t + 3t = 9

Step-by-step answer

P Answered by PhD

14

Oprion D. 25t + 3t = 9

Step-by-step explanation:

Mike and Jamal are 9 miles apart, and they are planning to meet up.

Let Mike and Jamal met after (t) hours.

Speed of Mike was 3 miles per hour

So distance covered by Mike in 't' hours = 3t miles

Average speed of Jamal is 25 miles per hour.

so distance covered by Jamal will be = 25t miles

So distance covered by James and Mike = 3t + 25t

This distance is 9 miles, so equation to calculate the time will be 3t + 25t = 9

Option D. 25t + 3t = 9 is the answer.

Mathematics

Jenna s dogs used 9 99 chew toys last year. The animal shelter used 2 , 277 2,2772, comma, 277 chew toys. How many times as many chew toys did the animal shelter use? Choose 1 Choose 1 (Choice A) A The animal shelter used 20 , 493 20,49320, comma, 493 times as many chew toys, because 9 × 2 , 277 = 20 , 493 9×2,277=20,4939, times, 2, comma, 277, equals, 20, comma, 493. (Choice B) B The animal shelter used 2 , 053 2,0532, comma, 053 times as many chew toys, because 2 , 277 ÷ 9 = 2 , 053 2,277÷9=2,0532, comma, 277, divided by, 9, equals, 2, comma,

Step-by-step answer

P Answered by Master

253

Step-by-step explanation:

Given

J = 9 --- Jenna's dog

A = 2277 -- Animal Shelter

See comment for proper format of the question

Required

How many times did A use than J

The options are not clear. So, the general solution is as follows.

To solve this, we simply divide the chew toys used in A by the chew toys used by J

So, we have:

$n = \frac{A}{J}$

This gives:

$n = \frac{2277}{9}$

n = 253

Mathematics

Jenna s dogs used 9 99 chew toys last year. The animal shelter used 2 , 277 2,2772, comma, 277 chew toys. How many times as many chew toys did the animal shelter use? Choose 1 Choose 1 (Choice A) A The animal shelter used 20 , 493 20,49320, comma, 493 times as many chew toys, because 9 × 2 , 277 = 20 , 493 9×2,277=20,4939, times, 2, comma, 277, equals, 20, comma, 493. (Choice B) B The animal shelter used 2 , 053 2,0532, comma, 053 times as many chew toys, because 2 , 277 ÷ 9 = 2 , 053 2,277÷9=2,0532, comma, 277, divided by, 9, equals, 2, comma,

Step-by-step answer

P Answered by Master

253

Step-by-step explanation:

Given

J = 9 --- Jenna's dog

A = 2277 -- Animal Shelter

See comment for proper format of the question

Required

How many times did A use than J

The options are not clear. So, the general solution is as follows.

To solve this, we simply divide the chew toys used in A by the chew toys used by J

So, we have:

$n = \frac{A}{J}$

This gives:

$n = \frac{2277}{9}$

n = 253

Mathematics

What is the simplified for of 7(-5y⁵)² ? a. 176y¹⁰ b. 175y¹⁰ c. 176y²⁵ d. 178y¹⁵ What must be multiplied to (2p + 8) to obtain 2p² + 16p + 32? a. (p + 4) b. (p + 7) c. (p + 8) d. (p + 5) What is the area of the rectangle with the width of 2x - 1 and with the length of (4x + 2)? a. 8x² + 2 b. 8x³ - 2 c. 8x² - 2 d. 8x³ + 2 What is the quotient of 21 x ⁴ - 14³ - 28x² and 7x²? a. 3x² + 2x - 4 b. 3x² - 2x - 3 c. 3x² + 2x + 4 d. 3x² - 2x - 4 What is the area of a square whose side is 5m + 3 a. 25m² + 30m +9 b. 25m² + 9 c. 25m²+ 15m + 9 d. 25m² - 10m

Step-by-step answer

P Answered by Master

1)

C) 8x² - 2

2) in the image above

Step-by-step explanation:

1)What is the area of the rectangle with the width of 2x - 1 and with the length of

(4x + 2)?

a. 8x² + 2

b. 8x³ - 2

c. 8x² - 2

d. 8x³ + 2

2)What is the simplified for of 7(-5y⁵)² ?

a. 176y¹⁰

b. 175y¹⁰

c. 176y²⁵

d. 178y¹⁵

Mathematics

The orange turtle, Maria, moved 250 centimeters in 9.4 minutes.Which calculation gives you her speed as a unit rate? 250 minus 9.4 = 240.6 StartFraction centimeters Over minutes EndFraction 250 dived by 9.4 almost equals 26.6 StartFraction centimeters over minutes EndFraction 250 times 9.4 = 2,350 StartFraction centimeters Over minutes EndFraction 250 + 9.4 = 259.4 StartFraction centimeters Over minutes EndFraction

Step-by-step answer

P Answered by PhD

23

I think the answer would be B..

Hope this helped...

Mathematics

What is the simplified for of 7(-5y⁵)² ? a. 176y¹⁰ b. 175y¹⁰ c. 176y²⁵ d. 178y¹⁵ What must be multiplied to (2p + 8) to obtain 2p² + 16p + 32? a. (p + 4) b. (p + 7) c. (p + 8) d. (p + 5) What is the area of the rectangle with the width of 2x - 1 and with the length of (4x + 2)? a. 8x² + 2 b. 8x³ - 2 c. 8x² - 2 d. 8x³ + 2 What is the quotient of 21 x ⁴ - 14³ - 28x² and 7x²? a. 3x² + 2x - 4 b. 3x² - 2x - 3 c. 3x² + 2x + 4 d. 3x² - 2x - 4 What is the area of a square whose side is 5m + 3 a. 25m² + 30m +9 b. 25m² + 9 c. 25m²+ 15m + 9 d. 25m² - 10m

Step-by-step answer

P Answered by Specialist

1)

C) 8x² - 2

2) in the image above

Step-by-step explanation:

1)What is the area of the rectangle with the width of 2x - 1 and with the length of

(4x + 2)?

a. 8x² + 2

b. 8x³ - 2

c. 8x² - 2

d. 8x³ + 2

2)What is the simplified for of 7(-5y⁵)² ?

a. 176y¹⁰

b. 175y¹⁰

c. 176y²⁵

d. 178y¹⁵

Mathematics

The orange turtle, Maria, moved 250 centimeters in 9.4 minutes.Which calculation gives you her speed as a unit rate? 250 minus 9.4 = 240.6 StartFraction centimeters Over minutes EndFraction 250 dived by 9.4 almost equals 26.6 StartFraction centimeters over minutes EndFraction 250 times 9.4 = 2,350 StartFraction centimeters Over minutes EndFraction 250 + 9.4 = 259.4 StartFraction centimeters Over minutes EndFraction

Step-by-step answer

P Answered by PhD

23

I think the answer would be B..

Hope this helped...

Mathematics

Which equation represents the following word problem? A school sells pencils to students for 25 cents each. If a student has $9, how many pencils can the student buy? p – .25 = 9 p.25=9{version 1.1 math frac{p}{.25} = 9 } p + .25 = 9 (.25)p = 9

Step-by-step answer

P Answered by PhD

3

D

Step-by-step explanation:

D is the right answer because it involves multiplying the number of pencils by 0.25, the price of the pencils, which will give you the correct price.

It also makes that equal to 9, since the student only has $9.

Mathematics

In a study, the number of students who said math is their favorite subject is shown by age group. there were 95 students with ages of 7-9, 105 students with ages of 10-12, 145 students with ages of 13-15, and 220 students with ages of 16-18. which probability distribution table best reflects the data? x p 7-9 0.2 10-12 0.3 13-15 0.1 16-18 0.4 x p 7-9 0.168 10-12 0.186 13-15 0.257 16-18 0.389 x p 7-9 0.324 10-12 0.167 13-15 0.245 16-18 0.28 x p 7-9 0.25 10-12 0.25 13-15 0.25 16-18 0.25

Step-by-step answer

P Answered by PhD

28

The answer is the second table

7-9 ⇒ 0.168

10-12 ⇒ 0.186

13-15 ⇒ 0.257

16-18 ⇒ 0.389

Step-by-step explanation:

∵ The number of the students in the group is:

95 + 105 + 145 + 220 = 565 students

∵ The group with ages of 7-9 is 95 students

∴ Pi = 95/565 = 0.168

∵ The group with ages of 10-12 is 105 students

∴ Pi = 105/565 = 0.186

∵ The group with ages of 13-15 is 145 students

∴ Pi = 145/565 = 0.257

∵ The group with ages of 16-18 is 220 students

∴ Pi = 220/565 = 0.389

The answer is the second table

Mathematics

The side lengths of a square are each 5q. By adding 3 to the length and subtracting 3 from the width, a rectangle is made. What is the area of the rectangle? a. 10q^2-6 b. 9q^2+25 c. 25q^2-9 d. 25q^2-30q-9

Step-by-step answer

P Answered by Specialist

8

Option C

Step-by-step explanation:

When you put the write the scenario in an equation, it'll look like

(5q+3)(5q-3) for the new width times the new length

Factor these, and you shall get 25q^2+15q-15q-9. Simplify that into

25q^2-9

9 is 25% of what number ?

Step-by-step answer

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