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3 years ago

WILL MARK BRILLIANT !! Calculate the sales tax of 6.35% on a bill of $45.25 .

Mathematics

1 answer:

Arlecino [84]3 years ago

3 0

Answer:

2.873375

Step-by-step explanation:

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How many kilograms of tin will be required to make 250 kg of an alloy, if the alloy must contain 81% copper, 14% tin and 5% lead

uysha [10]

Answer:

Step-by-step explanation:

all are obeying a constant ratio

copper 81
tin 14⇒?
lead 5
total 100 ⇒250
?=250*14/100=35

5 0

3 years ago

Read 2 more answers

A farmer uses 3/5 of his land to grow cassava, 1/3 of the remainder for yam and the rest for maize. Find the part of the land us

alexira [117]

Answer:

Step-by-step explanation:

Cassava = 1/3 of his land

Remaining after planting Cassava = 1 - 1/3 = 2/3 of his land

Maize = 2/5 x 2/3 = 4/15 of his land

Vegetables = 2/3 - 4/15 = 2/5 of his land

If vegetables = 10 acres

2/5 of his land = 10 acres

1/5 of his land = 10 ÷ 2 = 5 acres

5/5 of his land = 5 x 5 = 25 acres

4 0

3 years ago

“Write a linear equation that is perpendicular to 2x-5y=5 and passes through the point (2,-9).

k0ka [10]

Okay so you are correct with the gradient of the perpendicular line it is -5/2 however the equation is not y= -5/2 -1 because it is a new Line and has a new y-intercept therefore its Y=-5/2 + C but you have corrected that when doing the formula and have got the right answer

4 0

3 years ago

8/12-4/12 it is 7th grade math mcgrawhill page 281

navik [9.2K]

Answer:

-1.5

Step-by-step explanation:

8÷12 is 1.5 and 4÷12 is 3 so 1.5-3 is -1.5

8 0

3 years ago

The perimeter of a rectangle swimming pool Is 84 meters. The width of the pool is 3/4 the length. What are the length and width

soldier1979 [14.2K]

Given:

Perimeter of rectangular swimming pool = 84 meters

Width of pool = 3/4 of the length

Let's find the length and width of the pool.

Since the swinning pool has the shape of a rectangle and we have the perimeter, to find the length and width, apply the perimeter of a rectangle formula:

$\text{Perimeter = 2(L + W)}$

Where:

L is the length

W is the width.

Given:

W = ¾L

Substitute 84 for perimeter and ¾L for W.

Hence, we have:

$\begin{gathered} P=2(L+W) \\ \\ 84=2(L+\frac{3}{4}L) \end{gathered}$

Let's evealuate the equation and solve for L.

We have:

$\begin{gathered} 84=2(L+0.75L) \\ \\ 84=2(1.75L) \\ \\ 84=3.5L \end{gathered}$

Divide both sides by 3.5:

$\begin{gathered} \frac{84}{3.5}=\frac{3.5L}{3.5} \\ \\ 24=L \\ \\ L=24\text{ meters} \end{gathered}$

To solve for the width W, substitute 24 for L in (W=¾L)

$\begin{gathered} W=\frac{3}{4}\times L \\ \\ W=\frac{3}{4}\times24 \\ \\ W=\frac{3\times24}{4} \\ \\ W=\frac{72}{4} \\ \\ W=18\text{ meters} \end{gathered}$

Therefore, the length of the swimming pool is 24 meters, while the width is 18 meters.

ANSWER:

Length = 24 meters

Width = 18 meters

8 0

1 year ago