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3 years ago

Which ratio is equivalent to 10:4 5:2 14:6 1:4 3:6

Mathematics

2 answers:

Gnesinka [82]3 years ago

6 0

Answer:

5:2

Step-by-step explanation:

10:4/2

5:2

kvasek [131]3 years ago

6 0

Answer:

5.2

Step-by-step explanation:

divide 10:4 by 2 and you will get 5:2

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4) Jessica sold half of her comic books and

Tomtit [17]

Answer:

a) Let her comic books be x

b) as she sold half it will be

$\frac{x}{2}$ + 8 = 13 ( as she sold half and then she bought 8 more that means plus and then now she have 13 that means = 13)

c ) to solve to find the books she have we need to

$\frac{x}{2}$ + 8 = 13

Transpose

$\frac{x}{2}$ = 13 - 8

$\frac{x}{2}$ = 5

x = 5 × 2

x = 10

the comic books were 10

we can even cross- check to see if the value is right instead of x put 10

$\frac{10}{2}$ + 8 = 13

5 +8 = 13

13 = 13

Cross-checked

6 0

3 years ago

a set of pencils sells for 2.15 and costs 0.45 to make. Thirty percent of the profit from each set goes to the school. if 600 se

vredina [299]

Answer:

$306 go to the school

Step-by-step explanation:

2.15*600 = 1290

0.45*600 = 270

subtract :

1290- 270 = 1020

$1020 made

1020* 30% = 1020 * 0.30

1020* 0.30 = 306

$306

6 0

3 years ago

Identify sinJ as a fraction and as a decimal rounded to the nearest hundredth.

KiRa [710]

In the given right triangle, the trigonometric ratio, sin J has a fractional value of 5/13 and a decimal value of 0.39.

In trigonometry, for a right triangle, the sine (sin) of any angle θ is given as the ratio of its opposite side to the hypotenuse of the triangle, that is, sin θ = (opposite side)/(hypotenuse).

In the question, we are asked to find the trigonometric ratio, sin J, for the given right triangle JKL.

The side opposite to angle J is KL, which has a value of 3 units.

The hypotenuse of the given right triangle is JK, which has a value of 7.8 units.

Thus, sin J can be calculated as:

sin J = KL/JK = 3/7.8 = 5/13 = 0.39.

Thus, in the given right triangle, the trigonometric ratio, sin J has a fractional value of 5/13 and a decimal value of 0.39.

Learn more about trigonometric ratios at

brainly.com/question/20367642

#SPJ1

8 0

2 years ago

The area of a rectangular pool is 3621 m². If the width of the pool is 51 m, what is its length?

Sladkaya [172]

Answer:

71 m

Step-by-step explanation:

To find the answer all you need to do is take the width, w, and divide the area, a, to get length, l.

8 0

3 years ago

The sum of three numbers is 75. The third number is 2 times the first. The second number is 9 less than the first. What are the

anygoal [31]

Let the three numbers be x, y and z. Then x+y+z=75.
z = 2x. y = x - 9.

Eliminate y and z by substitution: x + (x - 9) + (2x) = 75

Then 4x = 75 + 9, or 4x = 84. x = 21, y = 21 - 9 = 12, and z = 2(21) = 42.

Check: Do 21, 12 and 42 add up to 75?

8 0

3 years ago