Which expression is equivalent to 4/9 x 7?

Mathematics

1 answer:

qaws [65]4 years ago

7 0

Answer:

Step-by-step explanation:

3.1111 + 0

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at the beginning of grade 6 the number of advanced math to the number of regluar math students was 3:8 however after taking plac

Brut [27]

The number of students would not change between before the test and after the test. 3+8 and 4+7 both = 11 so finding out how many students would equal one ratio can then be used to find how many equal 3 and 8.

If 92 students are equal to 4 in the ratio, then 1 in the ratio is worth 23 students. This is important as then when you times 23 by 7 you find out how many students there are in the regular maths class, 161 students. Plussing these two together gives you a total of 253 students.

Using this 253 you can divide it by 11 to find out how much 1 number would be in the ratio, it equals 23. Using this you can then times 23 by both 3 and 8 to find the original class sizes, 3x23 = 69, and 23x8 = 184.

Making the origional class size of the advaced class 69 studnets, and the regular maths class size 184.

4 0

4 years ago

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Which equation represents the quadratic parent function shifted to the left two units?

Julli [10]

The answer is B.
An (x + 2) moves the function to the left

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3 years ago

The opposite angles of a parallelogram have measures of (3x-20) and (x+15). Find x

KiRa [710]

ANSWER

The value of x is,

$17.5$

EXPLANATION

We were given that the opposite angles of a parallelogram are

$3x - 20$ and $x + 15$ .

The opposite angles of a parallelogram are equal.

We can write the equation below in x and use to find the value of x.

$3x - 20 = x + 15$

We group like terms to obtain,

$3x - x = 15 + 20$

This implies that,

$2x = 35$

We divide both sides of the equation by 2 to obtain,

$x = 17.5$