En el mercado de pera pesa 8.400 dolares contruye una tabla que permita apreciar la dependencia de peso y el precio.

Jayce looks around at an assembly. He notices his younger sister to his right and his older brother 48 feet ahead of him. If Jay

olganol [36]

Answer:

I think it's 50

Step-by-step explanation:

48

49

50

51

52

50 8s inbetween the two

6 0

3 years ago

If x varies directly as y, find x when y=8. x=11 when y=-3

andriy [413]

Answer:

$x=-\frac{88}{3}$

Step-by-step explanation:

When a quantity "A" varies DIRECTLY with another quantity "B", we can write the proportionality equation as:

A = kB

Where k is the proportionality constant (to be found)

In this problem, it is given x varies DIRECTLY with y, so we can write:

x = ky

Also, given, x = 11, y = -3, so we plug these into the equation and first find k:

x = ky

11 = k(-3)

k = -11/3

Now, we need to find x when y = 8, so we substitute and find x:

$x=ky\\x=(-\frac{11}{3})(8)\\x=-\frac{88}{3}$

8 0

4 years ago

Marrisa added 1.56 and 13.47. She got 29.07. What mistake could Marrisa have made?

fomenos

She hadn't lined up the decimal points correctly.

Incorrect way:

13.47
1.56

Correct way:

13.47
1.56

Add them up to get the right answer.

13.47
1.56
+____
15.03

So, the answer is 15.03.

6 0

3 years ago

Read 2 more answers

In a certain class 40% of the students are girls; and 20% of the girls wear glasses, what percentage of the children in the clas

dem82 [27]

For example
let there be 100 students

so the number of girls=40
20% of girls=20%of40=20*40/100=8 wear glasses
Which means 8 out of 100 students wear glasses
So 8%students wear glasses

7 0

3 years ago

What is the value of the expression (-8/9) divided by (-2/3) x (-4 1/2) ?

Law Incorporation [45]

Answer:

B) $x=-\frac{8}{27}$

Step-by-step explanation:

$-\frac{8}{9}=-\frac{2}{3}x(-4\frac{1}{2})$

To start things off, lets convert any mixed numbers like $-4\frac{1}{2}$ into improper fractions. In this case $-4\frac{1}{2}$ as an improper fraction is $-\frac{9}{2}$ .

$-\frac{8}{9}=-\frac{2}{3}x(-\frac{9}{2})$

Now let's multiply $-\frac{2}{3}x$ by $-\frac{9}{2}$ . When multiplying fractions, all you need to do is multiply the numerators and denominators separately. Your final answer should be $\frac{18}{6}x$ .
*Note: a negative times a negative is a positive, so that's why we now have an even number in front of $x$ instead of a negative number.

$-\frac{8}{9}=\frac{18}{6}x$

Now we want to isolate $x$ , so we'll have to divide $-\frac{8}{9}$ by $\frac{18}{6}$ , but dividing these two fractions seems like a pain. To make things a bit easier, let's turn our improper fraction into a whole number. To change this improper fraction into a whole number, we should ask ourselves what times $6$ is equal to $18$ ? In this case, the answer is 3, so $\frac{18}{6}$ is actually the same thing as the whole number $3$ .
*Note: In general, keeping fractions as either improper fractions or whole numbers will make doing math easier. Avoid mixed numbers like $-4\frac{1}{2}$ when trying to do math and simply change improper fractions into mixed numbers once you have your final solution.

$-\frac{8}{9}=3x$

Now divide $-\frac{8}{9}$ by $3$ . Think of it as multiplying the denominator of $-\frac{8}{9}$ by $3$ .

$-\frac{8}{27}=x$

6 0

3 years ago