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2 years ago

Find the circumference of the pizza to the nearest tenth.

Mathematics

1 answer:

mote1985 [20]2 years ago

7 0

Answer:

C=2πr

r=D/2=10/2=5

C=2×3.14×5

C=31.4in

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You travel 224 miles in 4 hours. What is the unit rate?<br><br><br> Please help its math!

GenaCL600 [577]

It would be 56 mph. you need to divide 224 from 4 to get the unit rate

7 0

2 years ago

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What is the cost of constructing a fence 6 feet, 6 inches, high around a lot measuring 90 feet by 175 feet, if the cost of erect

lions [1.4K]

Answer:

The total cost is $3504.625

Step-by-step explanation:

1 inch = 0.0833333 feet

Height = 6 feet 6 inches = $6+6 \times 0.0833333=6.5 feet$

Length = 90 feet

Breadth = 175 feet

Perimeter = $2(l+b)=2(90+175) = 530 feet$

Cost of erecting the fence is $1.25 per linear foot .

So, Cost of erecting the fence of 530 feet = $530 \times 1.25$

Cost of erecting the fence of 530 feet = $662.5$

Area of fence = $2(l+b)h=530 \times 6.5=3445 feet^2$

Cost of materials is $0.825 per square foot of fence

Cost of materials of 3445 square foot of fence = $3445 \times 0.825$

= $2842.125$

Total cost = $2842.125+$662.5

Total cost = $3504.625

Hence the total cost is $3504.625

6 0

3 years ago

2x+3y evaluate the expression when x=2 and y=-3

ELEN [110]

Answer:

2(2)+3(-3)=

4-9=

-5

Step-by-step explanation:

3 0

2 years ago

2x-√x(1-2x) =1<br> x+√4-x² =2

snow_lady [41]

Answer:

or, 2x-x^2+2x^2=1

or,2x+x^2=1

or,x^2+2x-1=0

or,x^2+x+x-1=0

or,x(x+1)+1(x-1)=0

or,(x+1)(x-1)=0

therefore x=(-1,+1)

7 0

3 years ago

Make an equation that has the numbers : -3.78 , -1.2y, and -4.2y

kodGreya [7K]

Answer: In solution

Step-by-step explanation:

Well, first you need to arrange the numbers in anyway, separated by operations. I just did:

-3.78 + (-1.2y + -4.2y)

We then need to come up with the other side of the equation.

For this, I added the like terms:

-3.78 + (-1.2y + -4.2y) = -3.78 -5.4y

Then, I came up with a value for y. Y = 5

Then, I multiplied -5.4 by 5, getting -27 so,

-3.78 + (-1.2y + -4.2y) = -3.78 - 27

Again, I collected like terms:

-3.78 + (-1.2y + -4.2y) = -30.78

Now, I have my equation.

———————————————————————————————

HOW TO SOLVE THE EQUATION

-3.78 + (-1.2y + -4.2y) = -30.78

1. Add 3.78 to both sides

-1.2y + -4.2y = -27

2. Collect like terms

-5.4y = -27

3. Divide both side by -5.4

y = 5

8 0

2 years ago

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