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4 years ago

6

I need help please help me

1 answer:

Eduardwww [97]4 years ago

3 0

Answer:

Option 2

Step-by-step explanation:

Cost of book= 6.50

Shipping= 4.99

Total= 82.99

Equation:

6.50x+4.99= 82.99

Option 2 is correct

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how much 45% acid solution should be mixed with a 30% acid solution to make 450 ml of a 40% acid solution?

FromTheMoon [43]

We do as follows:

let x = amount of 45% solution
y = amount of 30% solution

overall balance => x + y = 450
acid balance => .45x + .30y = .40(450)

Solving simultaneously, we will have:

x = 300 mL
y = 150 mL

This is assuming that partial molar properties does not affect the volume greatly. Hope this answers the question. Have a nice day.

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3 years ago

How do i put -8-3x=y in slope intercept form?

masha68 [24]

Slope intercept form : y = mx + b
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-8-3x=y
</span>y = -3x - 8

Answer would the be : y = -3x - 8

6 0

3 years ago

Please help! i will mark you brainliest

alexandr402 [8]

I’m not sure but I think 9.00(n)

8 0

3 years ago

( please help !! )

sergij07 [2.7K]

Answer:

A. Circular base of the bucket

B. Bucket

Step-by-step explanation:

We are given that,

1. The dimensions of the rectangular prism are,

Length = 2 feet, Width = 3 feet and Height = 5 feet.

So, we have,

Area of the rectangular base = $Length\times Width$

i.e. Area of the rectangular base = $2\times 3$

i.e. Area of the rectangular base = 6 feet²

Also, we have,

Volume of the prism = $whl$

i.e. Volume of the prism = $3\times 5\times 2$

i.e. Volume of the prism = 30 feet³

2. The dimensions of the cylinder are given as,

Diameter = 3 feet i.e Radius = $\frac{3}{2}$ = 1.5 feet

Height = 5 feet

Then, we have,

Area of the circular base = $\pi r^2$

i.e. Area of the circular base = $\pi (1.5)^2$

i.e. Area of the circular base = $2.25\pi$

i.e. Area of the circular base = 7.07 feet²

Also, we have,

Volume of the cylinder = $\pi r^{2}h$

i.e. Volume of the cylinder = $\pi (1.5)^{2}\times 5$

i.e. Volume of the cylinder = $\pi 2.25\times 5$

i.e. Volume of the cylinder = $11.25\pi$

i.e. Volume of the cylinder = 35.34 feet³

PART A: Since we have,

Area of the rectangular base = 6 feet² < 7.07 feet² = Area of the circular base

Hence, the circular base of the bucket is larger in area.

PART B: We have,

Volume of the prism = 30 feet³ < 35.34 feet³ = Volume of the cylinder

Hence, the bucket is larger in volume.

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3 years ago

Nicole did an aerobics class and yoga class for at total of 1 hour and 10 minutes. The yoga class was 30 minutes. The yoga class

lana [24]

Yoga class was thirty minutes and the aerobics class was 0 minutes.

3 0

3 years ago