Jude has seven times as many dimes as nickels their value is $5.25 how many nickels does he have.49
15
7

Answers

Answer 1

Answer: Let dimes be represented by d and n for nickels;
1 dime= 0.1 dollars
1 nickel=0.05 dollars
0.1d+0.05n=5.25
d=7n
so,
0.1(7n)+0.05n=5.25
0.7n+0.05n=5.25
0.75n=5.25
n=7
There are 7 nickels and 49 dimes

Answer 2

Answer: 1 nickel = $0.05
1 dime = $0.10

n - number of nickels
7n - number of dimes

A equation:

0.05n + 0.1 · 7n = 5.25
0.05n + 0.7n = 5.25
0.75n = 5.25 |divide both sides by 0.75
n = 7

Answer: He have 7 nickels.

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Susana drove 125 miles in 5 hours. What is her average speed in miles per hour? a) 25 mph b) 30 mph c) 35 mph d) 40 mph

Answers

Answer: a) 25 mph

Explanation:

To find the average speed, we need to divide the total distance by the total time. Here, we have Susana driving a total distance of 125 miles with a time of 5 hours.

We can calculate the average speed by dividing the total distance driven by the total time driven.
125 miles / 5 hours = 25 miles/hour

This gives us answer option a, the average speed of Susana is 25 mph.

Answer:

The average speed is 25 mph

Step-by-step explanation:

We can calculate average speed by dividing the distance and the time interval:

average speed = (total distance traveled/time interval)

= (125 mi/5 hours)

= 25 mph

Her average speed is 25 mph.

a) 25 mph

A manufacturer makes ball bearings out of molten steel. It takes 5.24 cubic centimeters of molten steel to make ? ball bearings that each have a diameter of 1 centimeter.

Answers

So we want to know how much ball bearings can be made with 5.24 cm^3 if one ball bearing has a diameter of 1 cm. We know that radius r=d/2=0.5cm So the volume V of one ball bearing is: V=(4/3)*pi*r^3 so V=(4/3)*3.14*(0.5)^3cm^3=0.524cm^3. Now we simply divide the volume of steel by the volume of the ball bearing: 5.24/0.524=10. So we can make 10 ball bearings from 5.24 cm^3 of steel

Answer: 10 ball bearings

Plato is annoying

Step-by-step explanation:

What is the awnser to r(−2)= ?

Answers

Answer:

r=2 i think

Step-by-step explanation:

Answer:

Hi there!

If there was supposed to be an attached problem to fill -2 into, PLEASE ATTACH IT!

If not, x= -2 in r(-2)

Solve the following equation: 28 ÷ 7 + 2 × 3 = ?

A. 24B. 18C. 10D. 12

Answers

Using the helpful saying
Please (parentheses)
Excuse (exponents)
My (multiply)
Dear (divide)
Aunt (add)
Sally (subtract)

We can see that multiplying comes first in this equation, then dividing then adding so
2x3=6
then
28/7=4
then
6+4=10

So your answer is C

You drop a ball from a height of 1.5 meters. Each curved path has 71% of the height is the previous path. a. write a rule for the sequence using centimeters. The initial height is given by term n=1

b. what height will the ball be at the top of the sixth path

Answers

a. write a rule for the sequence using centimeters. The initial height is given by term n = 1

For this case we have a sequence of the form:

Where

a0: initial height

r: rate of change

n: number of paths

On the other hand we have the following conversion:

1 meter = 100 centimeters

Therefore we have:

Thus, the general rule for the sequence in centimeters is:

Answer:

a rule for the sequence using centimeters is:

b. what height will the ball be at the top of the sixth path

For this case, we substitute the value of n = 6 in the equation obtained in part a.

We have then:

Answer:

the height of the ball will be 27.06 at the top of the sixth path

The general form for a geometric series is:
an = a1 r^(n-1)

with a1 as 1.5
and r = 0.71

So,
a.
The rule for sequence is:
an = 1.5 (0.71)^(n - 1)

b.
After the sixth path, the height of the ball at the top is
a6 = 1.5 (0.71)^(6 - 1)
a6 = 0.27 m

36 – 0.0048 = ? A. 35.9952 B. 35.1520 C. 35.0048 D. 36.0048

Answers

If you would like to solve 36 - 0.0048, you can calculate this using the following step:

36 - 0.0048 = 35.9952

The correct result would be A. 35.9952.

If you would like to solve 36 - 0.0048, you can calculate this using the following step:

36 - 0.0048 = 35.9952

The correct result would be A. 35.9952.

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A ride on the roller coaster costs 4 tickets while the boat ride only costs 3 tickets. Michael went on the two rides a total of 10 times and spent a total of 37 tickets.