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3 years ago

What’s is the surface area of this

Mathematics

1 answer:

Marysya12 [62]3 years ago

6 0

2.8 multiplied by 2.8 to find the surface area of the base which is 7.84
4*1/2*2.8*5.5 to find the surface area of all four triangular faces which is 30.8
Plus them together 7.84 plus 30.8 which is 38.64

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there are 3 different cheeses at the deil. yasuko buys 3/4 of a pound of each there are also 4 different meats she buys 1/2 of a

Leno4ka [110]

Answer:

explanation below

Step-by-step explanation:

3/4+3/4+3/4=9/4 or 2 1/4 pounds of cheese

1/2+1/2+1/2+1/2= 4/2 or 2 pounds of meat

so in total he buys 2 and 1/4 a pound of cheese and 2 pounds of meat or 4 1/4 pounds of total product

7 0

3 years ago

Read 2 more answers

A radio-controlled helicopter sells for $20, but needs a lithium battery that costs 25% of that price. A sales tax of 6% will be

Diano4ka-milaya [45]

Answer:

The total cost of the helicopter = $26.5

The cost of lithium battery = $5.

The amount of sales tax = $1.5

Step-by-step explanation:

We have been given that a radio-controlled helicopter sells for $20, but needs a lithium battery that costs 25% of that price.

We can find the price of battery by finding 25% of 20.

$\text{The cost of lithium battery}=\frac{25}{100}\times 20$

$\text{The cost of lithium battery}=\frac{25}{5}$

$\text{The cost of lithium battery}=5$

Therefore, the cost of lithium battery is $5.

Now let us find the sales tax on the cost of helicopter and lithium battery.

$\text{Total sales tax}=\frac{6}{100}\times (20+5)$

$\text{Total sales tax}=0.06\times (25)$

$\text{Total sales tax}=1.5$

Therefore, the total sales tax will be $1.5.

We can find the total cost of helicopter by adding the cost of helicopter, cost of lithium battery and total amount of sales tax.

$\text{The total cost of helicopter}=20+5+1.5$

$\text{The total cost of helicopter}=26.5$

Therefore, the total cost of helicopter will be $26.5.

4 0

3 years ago

Mike can bind 109 flowers per hour, John can bind 116 flowers

antiseptic1488 [7]

Hello!

We know that mike can bind 109 flowers per hour.

Lets create an equation to remember this.

Mikes equation:

109x = y

We know that John can bind 116 flowers per hour, here is his equation.

Johns equation:

116x = y

Question: If they work together for 5 hours, how many flowers can they bind?

First, plug in the number five in both equations.

Second, solve the equation by multiplying.

Mikes:

109(5) = y

109 times 5 is 545

y = 545

Johns:

116(5) = y

116 times 5 is 580

y = 580

We want to know how many flowers can they bind if they work together.

This means we need to add the answers of the equations from both mike's and john's together.

545 + 580 = 1,125

The answer is 1,125

4 0

3 years ago

Write the equation of the graphed circle.

Sveta_85 [38]

Do NOT search the link they WILL hack you

4 0

3 years ago

In the city of Carmen, there is a drawbridge that is opened twice per hour over the summer. The graph below shows the number of

n200080 [17]

Answer:

1) Between 0 and 1 minute the rate of change is 25 ft./min

2) Between 1 and 2 minute the rate of change is 0 ft./min

3) Between 2 and 4 minute the rate of change is -12.5 ft./min

Step-by-step explanation:

1) Between 0, and 1 feet, we have;

The rate of change = (Final height - Initial height)/(Final time - Initial time)

The rate of change = (40 - 15)/(1 - 0) = 25 ft/min

Between 0 and 1 minute the rate of change = 25 ft./min

2) Between 1, and 2 feet, we have;

The rate of change = (40 - 40)/(2 - 1) = 0 ft/min

Between 1 and 2 minute the rate of change = 0 ft./min

3) Between 2, and 4 feet, we have;

The rate of change = (15 - 40)/(4 - 2) = -12.5 ft/min

Between 2 and 4 minute the rate of change = -12.5 ft./min

7 0

3 years ago