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malfutka [58]
3 years ago
13

2/3 of a class are girls

Mathematics
1 answer:
Novay_Z [31]3 years ago
6 0

Answer:

a.) 2:1

b.)1:2

Step-by-step explanation:

girls=2/3 *100=%66.66

boys=1/3 *100=%33.33

a.)66.66/33.33 = 2:1

b.)33.33/66.66 = 1:2

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What is the value of x in the equation 2.5 (6x-4h=10 +4(1.5 + 0.5x)
Komok [63]

Answer:

In this equation x is equal to h + 1

Step-by-step explanation:

To solve this, follow the order of operations for solving equations.

(6x-4h) = 10 + 4(1.5 + 0.5x) ----> Distribute the 4

(6x - 4h) = 10 - 6 + 2x ----> Simplify

6x - 4h = 4 + 2x ----> Subtract 4 from both sides

6x - 4h - 4 = 2x ----->Subtract 6x from both sides

-4h - 4 = -4x ----> Divide by -4

h + 1 = x

3 0
3 years ago
The three sides of AXYZ measure 13 feet, 17 feet, and 21 feet. Is AXYZ an acute, right, or obtuse triangle?
otez555 [7]

Answer:

Right angle triangle

Step-by-step explanation:

right angle triangle

8 0
3 years ago
There are 30 animals total at an animal shelter, and 40% of the animals are cats. How many cats are at the shelter?
ra1l [238]

Answer:

it is 12

Step-by-step explanation:

because 40 x 30

100

= 12

4 0
3 years ago
Read 2 more answers
Help me please 12 and f
zimovet [89]

Answer:

It is not equivalent.

Step-by-step explanation:

You have to expand the brackets :

(x-4)(x+3)

= x(x) + x(3) - 4(x) - 4(3)

= x² + 3x - 4x - 12

= x² - x - 12

Therefore, x² - x - 12 / (x-4)(x+3) is not equivalent to x² - 4x - 12.

6 0
3 years ago
Which of the pairs of angles are vertical angles and thus congruent? ∠A and ∠G ∠A and ∠B ∠C and ∠F ∠D and ∠H
r-ruslan [8.4K]

Answer:

∠A and ∠G is the pair of vertical angles.

Step-by-step explanation:

From the figure attached,

Two lines 'm' and 'n' are two parallel lines. These lines intersect a horizontal line 'l'.

Since, "Pair of opposite angles formed at the point of intersection are the vertical angles and equal in measure."

Therefore, Opposite angles ∠A ≅ ∠G, ∠B ≅ ∠H, ∠C ≅ ∠E and ∠D ∠F are the vertical angles.

From the given options,

∠A and ∠G is the pair representing the pair of vertical angles and thus congruent.

5 0
3 years ago
Read 2 more answers
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