3 years ago

Chloe's account was hacked. The cyber thief made 4 withdrawals for $23.75 each.

Mathematics

1 answer:

Fynjy0 [20]3 years ago

3 0

Net change us $95

explain -

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X+Y=100<br> 4.5X+20Y=822<br> Elimination, graphing,and substitution methods.

serious [3.7K]

Answer:

y=10

4 SX +20 Y= 822

Elimination

X - 10 -4

UX - 822-20Y

6.5

10 -4 = 822-201

- 4.5 = 822 - 204

15.54=774

4 = 90:13

= -40.129

4 0

4 years ago

A cone has a diameter of 7.5 ft and a height of 4.25 ft. What is the volume of the cone to the nearest tenth? Use 3.14 for π.

leva [86]

Answer:

The volume of a cone is $62.5\ \text{feet}^3$ .

Step-by-step explanation:

We have,

Diameter of a cone is 7.5 ft

Radius of a cone is 3.75 ft

Height of the cone is 4.25 ft

It is required to find the volume of the cone. The formula of the volume of cone is given by :

$V=\dfrac{1}{3}\pi r^2 h\\\\V=\dfrac{1}{3}\times 3.14\times (3.75)^2\times 4.25\\\\V=62.55\ \text{feet}^3$

So, the volume of a cone is $62.5\ \text{feet}^3$ .

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3 years ago

If each number is rounded to the nearest whole number, which statement is true?

Assoli18 [71]

A = B
6.9 => 7 8.3 => 8
8+7=15
6.2 => 6 8.5 => 9
6+9=15
so A = B

7 0

3 years ago

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Alice earned $622.50 in interest on her savings in the bank. Before interest, the account had $12,450. What is the approximate p

Akimi4 [234]

Hi there

To find The interest rate the formula is
R=I÷pt
r interest rate?
I interest earned 622.5
P principle 12450
T time 1 year
So
R=622.5÷(12,450×1)
R=0.05×100=5%

Hope it helps

6 0

3 years ago

What is the approximate area of a circle shown below?

hoa [83]

To find the area of a circle, the equation we use is 3.14*r^2.

We know 17^2 is 289.

So to find the area, we simply multiply 289 by 3.14, which would be 907.46

The answer is option B.

6 0

3 years ago

Read 2 more answers