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3 years ago

The base of a lampshade is in the

1 answer:

5 0

This whole problem is only about a circle. Let's not get confused by the rest of the lampshade.

The circumference of any circle is (pi) times (the diameter) .

For this circle, it's (pi) times (13 cm).

They told us what to use for (pi), so it's (3.14) x (13 cm) = <u>40.82 cm</u>

and that's all there is to it.

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Marti has a jar of 161 coins consisting of pennies and nickels. The total value of the coins is $3.09. How many nickels does Mar

rodikova [14]

Okay, so there are nickels and pennies in this jar.

So, let's call the number of pennies X

Since there are 161 coins altogether, the number of nickels is (161 - X)

So now we solve the equation:

.01X + .05(161 - X) = 3.09

.01X + 8.05 - .05X = 3. 09

4.96 = .04X

124 = X

So, there are 124 pennies

Therefore, there are 161 - 124 = 37 nickels

Let's check our answer:

124 x .01 + 37x .05 = 1.24 + 1.85 = 3.09

It works!

3 0

3 years ago

Read 2 more answers

9/37 reduces to lowest terms?

Darina [25.2K]

It is 9/37 because 37 is prime.

5 0

3 years ago

Read 2 more answers

Please help, or I'll float.

svlad2 [7]

$3(x+2)+4(x-5)=10\\\\3\cdot x+3\cdot2+4\cdot x+4\cdot(-5)=10\\\\3x+6+4x-20=10\\\\7x-14=10\quad|+14\\\\7x-14+14=10+14\\\\7x=24\quad|:7\\\\\\\boxed{x=\frac{24}{7}}$

Answer B.

7 0

3 years ago

Golf Scores In a professional golf tournament the players participate in four rounds of golf and the player with the lowest scor

Evgen [1.6K]

Answer:

Mean scores.

Step-by-step explanation:

The golf player will score in the first round, according to these scores the golf player scores can be predicted. The golf player can perform high in first round but he may score lesser in the second round due to stress or mental pressure. The scores can be predicted taking mean of the scores and adding standard deviation to it.

6 0

3 years ago

A brother and sister sold magazine subscriptions for school fundraiser. The sister sold 5 fewer than twice the number of her bro

kari74 [83]

Answer:

The brother sold 33 subscriptions

The sister sold 19 subscriptions

Step-by-step explanation:

Let's represent the number is subscription as:

For the brother = a

For the sister = b

a + b =52

The sister sold 5 fewer than twice the number of her brother sold .

a= 2b - 5

Hence, substitute 2b - 5 for a I. The above equation.

a + b =52

2b - 5 + b = 52

3b = 52 + 5

3b = 57

b = 57/3

b = 19

a + b = 52

a + 19 = 52

a = 52 - 19

a = 33

Therefore,

the brother sold 33 subscriptions

the sister sold 19 subscriptions

8 0

3 years ago