Solve for x. Round your answer to the nearest tenth. Type only the
number value. Will mark brain list !

Answer:

4x(5)+1×(3.20)= 20+3.20=23.20

Step-by-step explanation:

The cost of 7kg of brass is £32.48.

A ratio is a comparison of two or more numbers that indicates their sizes in relation to each other.

According  to the given question.

Cost of one kg of copper = £5

Cost of one kg of zinc = £3.20

Also, copper and zinc are mixed in the ratio 4:1.

Let the quantity of copper be 4x and the quantity of  zinc 1x.

Weight of brass = 7kg

⇒ 4x + 1x = 7

⇒ 5x = 7

⇒ x = [tex]\frac{7}{5}[/tex]

⇒ x = 1.4

Weight of copper, 4x = (1.4)(4) = 5.6kg

Weight of zinc, 1x = (1) ×(1.4)  = 1.4kg

Therefore,

The cost of 7kg of brass

= (5.6)×(£5) + (1.4)(£3.20)

= 28 + 4.48

= £ 32.48

Therefore, the cost of 7kg of brass is £32.48

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Answer:

10.25%

Step-by-step explanation:

imagine the number is 100. Increase that by 5% so multiply 100 by 105%. This equals 105. Then increase 105 by 5% so multiply 105 by 105%. This equals 110.25. The original number was 100 so 110.25-100= 10.25. 10.25/100= 10.25%

Hope this is correct :) I'm rly not sure now

Answer:

10%

Step-by-step explanation:

Answer:

Common difference is 55

Step-by-step explanation:

C(m)=55m

Substitute m=1 to find the distance traveled by Mia in one hour

55m= 55(1)

= 55

Distance traveled in one hour is 55 miles. Substitute m=2 to find the distance traveled by Mia in 2 hours

55m=55(2)

= 110

Distance traveled in 2 hours is 110 miles. Substitute m=3 to find the distance traveled by Mia in 3 hours

55m=55(3)

= 165

Distance traveled in 3 hours is 165 miles. Substitute m=4 to find the distance traveled by Mia in 4 hours

55m=55(4)

=  220

Distance traveled in 4 hours is 220 miles. Then the common difference is

d=110-55=165-110=220-165=55

Answer:

OK I will dot this after getting 10 followers

Answer:

deez

Step-by-step explanation:

Answer:

7

2n + 3n + 4n. = 63

9n = 63

n = 63/9

n = 7

hope it helps

Answer:

n=7

Step-by-step explanation:

add 2n+3n+4n, which gives 9n =63

Divide by 9 on both sides, 9n/9 =63/9

n=7

If you need to confirm that's the right answer, just plug 7 back as n

2(7)+3(7)+4(7)=63

14+21+28 =63

63=63

Answer:

3

Step-by-step explanation:

the y axis

Answer:

456 unit I hope it is a right answers

Answer:

1

Step-by-step explanation:

2a-21 / b

2(4)-21/3

8-7=1

Answer:

1

Step-by-step explanation:

(FIRST THING FIRST REMEMBER PEMDAS)

First you rewrite the number sentence with the clues you got.

2 x 4 - 21 / 3

Then you do 2x4 to get 8, then you rewrite the # sentence again

8 - 21 / 3

Next you divide 21 / 3 to get 7 and rewrite the sentence again

8-7

FINALLY you subtract 8-7 to get 1

Answer:

I believe around 3 times

Step-by-step explanation:

Because if we round we would get

150÷50=3

Hope this helps!!

Answer:

The regular bottle holds 9 fl oz of sun screen

Step-by-step explanation:

75% of 12 = 9

Answer:

x = 26degrees

Step-by-step explanation:

The sum of all angles in any triangle is 180degrees. The given figure is a triangle, therefore, one can apply this property to the given triangle. Form an equation using this given information,

(2x) + (3x) + (50) = 180

Simplify,

5x + 50 = 180

Inverse operations,

5x + 50 = 180

    -50      -50

5x = 130

/5     /5

x = 26

Answer:

vebjsjjssjvtjkskskkskskkkk

Step-by-step explanation:

yzuduudjizjdayayay ayayay ayayay

Answer:

angle bisectors and opposite side perpendiculars

Step-by-step explanation:

Step-by-step explanation:

A watch seller gained 20% by selling a watch for 1260.If he had to gain 30%,at what price should have he sold it?

Dalton III

Answered December 12, 2020

I shall explain the solution to this problem using rudimentary concepts.

First, we need to determine the original price of the watch.

Convert the percentage profit to a decimal by dividing by 100. In this problem, the profit is 20%, so we would divide:

20100=0.2

Add 1 to the profit expressed as a decimal.

1+0.2=1.2

Divide the price after the profit has been added by the figure which we have calculated to find the price before the profit (we shall assume that the currency used in this problem is the pound sterling)

£12601.2=£1050

Now that we have determined the original price of the watch, we shall determine at what price should the seller sell this watch in order to obtain a 30% gain. The same formula is used for the first two steps.

Convert the intended percentage profit to a decimal by dividing by 100. In this problem, the intended profit is 30%, so we would divide:

30100=0.3

Add 1 to the intended profit expressed as a decimal.

1+0.3=1.3

Now, instead of dividing, we would want to multiply the original price with the figure 1.3

£1050⋅1.3=£1365

So, in order to gain a profit of 30%, the watch seller should sell the watch at a price of £1365

Renters do not have the maintenance costs associated with home ownership. Therefore, option B is the correct answer.

In mathematics, the tax calculation is related to the selling price and income of taxpayers. It is a charge imposed by the government on the citizens for the collection of funds for public welfare and expenditure activities. There are two types of taxes: direct tax and indirect tax.

Both renting and buying have their financial advantages, and owning a home isn’t right for everyone.

Unlike homeowners, renters have no maintenance costs or repair bills and they don't have to pay property taxes.

Amenities that are generally free for renters aren't for homeowners, who have to pay for installation and maintenance.

Renters do not have the maintenance costs associated with home ownership.

Home owners have to pay for all costs & repairs needed.

Therefore, option B is the correct answer.

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Yes, the given set of the sides of a triangle follows the Pythagorean Triple and the acute angles are 61.92° and  28.08°.

Pythagorean triples are a²+b² = c² where a, b and c are the three positive integers. These triples are represented as (a, b, c). Here, a is the perpendicular, b is the base and c is the hypotenuse of the right-angled triangle.

Given that, A triangle has sides with lengths 8, 15, and 17.

1) Checking for Pythagorean triples;

17² = 289

8²+15² = 225+64 = 289 = 17²

∴ 17² = 8²+15²

Since, they are following the Pythagoras theorem so, they are  Pythagorean triples.

2) Calculating the acute angles:-  [please refer to attached figure]

Let 15 be the perpendicular, 8 be the base and 17 is the hypotenuse,

sinC = 15/17 (sine of an angle is ratio of perpendicular to hypotenuse)

∠ C = sin⁻¹(15/17)

∠ C = 61.92°

∠ A = 90°-61.92°

∠ A = 28.08°

Hence, the given set of the sides of a triangle follows the Pythagorean Triple and the acute angles are 61.92° and  28.08°.

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Answer:

your answer will be C. The function has an inverse because it passes the horizontal line test.

bye have a nice day ^_^

C. The function has an inverse because it passes the horizontal line test.

A function is a rule or a relation that associates each element of a non-empty set A, to at least a single element of another non-empty set B.

The relation f from a domain set to co-domain set is called function.

Example : f = {(x, y) | for all x∈X & y∈Y}

A relation becomes function when every element of domain has one and only one image in co-domain.

If f is a function which is one-one as well as on-to, i.e, if the function is bijective, then the inverse of this function exists and the inverse is then denoted by [tex]f^{-1\\}[/tex]

Inverse function of a function always undoes the operations of the function f.

f(a) = b if and only if f⁻¹ (b) = a , where a is from domain & b is from co-domain set.

From the above descriptions, we can see that, since the function passes through the horizontal line, so it has an inverse.

Hence the option C is the correct one.

C. The function has an inverse because it passes the horizontal line test.

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Answer:

126 minutes

Step-by-step explanation:

17.12 - 2 = 15.12

15.12 divided by 0.12 = 126 min

Answer:

94.56

Step-by-step explanation:

because 94,56 x 11.5 x 5 =4300

Answer:

Step-by-step explanation:

Equal installments can be found by

I=P((r-1)/(r^n-1)+(r-1)) (note monthly rate is r/12, r is about 1.00958)

I=4300((1.00958-1)/(1.00958^60-1)+0.00958)

I=$94.56

Answer:

74 is already in the simplest form. It can be written as 1.75 in decimal form (rounded to 6 decimal places).

Step-by-step explanation:

Answer:

-7333/4400

Step-by-step explanation:

Answer:3980

Step-by-step explanation:

Answer:

2.7

Step-by-step explanation:

322/7=46

46*125=2.71739

round off

2.7

Answer:

0.16 I think............

Answer:

0.16666666666

Answer:

32.5 feet

Step-by-step explanation:

This situation forms a right triangle. We are given the distance from the base of the tower (long leg of the triangle) and are asked to find the height (short leg of the triangle).

With this information, we can use the tan ratio, opposite over adjacent, to find the height of the tower.

tan 18 = [tex]\frac{x}{100}[/tex]

Multiply each side by 100:

(100) tan 18 = x

Simplify and round to the nearest tenth:

32.49 = x

32.5 = x

So, the height of the tower is approximately 32.5 feet

Answer:

50°

Step-by-step explanation:

Given that a triangle measures 180°.

∠U =40°

∠W=90°

Sum:130°

180°-130°=50°