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Ira Lisetskai [31]

2 years ago

14

Joanna went school supply shopping. She spent $25.51 on notebooks and pencils. Notebooks cost $2.41 each and pencils cost $1.08

each. She bought a total of 15 notebooks and pencils. How many of each did she buy?

1 answer:

Alenkasestr [34]2 years ago

5 0

Answer:

Step-by-step explanatio

you can use a calculator!

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3492 and 704. the value of the 4 in blank is blank times the value of 4 in blank

AURORKA [14]

In 3,492, the 4 is in the hundreds place. In 704, the 4 is in the ones place. The 4 in 3,492 is 100 times the 4 in 704. Hope I helped! XD

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3 years ago

What is the volume of a cube with surface area A m2?

atroni [7]

Answer:

How do you find volume when given surface area?

Since the base area is given, simply multiply the area of the base times the height to calculate the volume. *Reminder: Volume is measured in cubic units. The volume of the square prism is 225 cubic feet.

Step-by-step explanation:

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victus00 [196]

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Step-by-step explanation:

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2 years ago

The circumference of a standard bowling ball is about 27 in. To the nearest unit, how many square inches is the surface area of

Sidana [21]

The surface area of a sphere is $S=4 \pi r^{2}$ where r is the radius;
The circumference is $2 \pi r=27 in$ so that $r= \frac{27}{2 \pi }=4.5 in$ using this value we can evaluate the surface area of 1 ball as:
$S=4 \pi r^{2} =4 \pi (4.5)^{2} =254.3 in^{2}$
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4 0

2 years ago

In 2013 number of students in a small school is 284.it is estimated that student population will increase by 4 percent

BaLLatris [955]

The situation can be modeled by a geometric sequence with an initial term of 284. The student population will be 104% of the prior year, so the common ratio is 1.04.

Let \displaystyle PP be the student population and \displaystyle nn be the number of years after 2013. Using the explicit formula for a geometric sequence we get

{P}_{n} =284\cdot {1.04}^{n}P

n

=284⋅1.04

n

We can find the number of years since 2013 by subtracting.

\displaystyle 2020 - 2013=72020−2013=7

We are looking for the population after 7 years. We can substitute 7 for \displaystyle nn to estimate the population in 2020.

\displaystyle {P}_{7}=284\cdot {1.04}^{7}\approx 374P

7

=284⋅1.04

7

≈374

The student population will be about 374 in 2020.

5 0

2 years ago