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2 years ago

X/6 = 3/8 (7th grade math, i need an answer fast!!!

Mathematics

1 answer:

worty [1.4K]2 years ago

4 0

Answer:

9/4

Step-by-step explanation:

x/6 = 3/8

or, 8x = 3*6

or, x = 18/8

or, x = 9/4

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Lori is three times as old as Michelle. In five years Michelle's age will be one half of Lori's age. How old are Lori and Michel

AURORKA [14]

Answer:

Lori's age is 15 years old and Michelle's age is 5 years old now

Step-by-step explanation:

Let

x-----> Lori's age

y ----> Michelle's age

we know that

$x=3y$ -----> equation A

$(y+5)=\frac{1}{2}(x+5)$ ----> equation B

substitute equation A in equation B and solve for y

$(y+5)=\frac{1}{2}(3y+5)$

$2y+10=(3y+5)$

$3y-2y=10-5$

$y=5$

Find the value of x

$x=3(5)=15$

therefore

Lori's age is 15 years old and Michelle's age is 5 years old now

7 0

3 years ago

Khan academy again smh. Please answer! Thanks!

Vlad [161]

Answer:

The answer is B

Step-by-step explanation:

x/-y is equivalent to -(x/y)

6 0

2 years ago

A ship leaves port at 1:00 P.M. and travels S35°E at the rate of 27 mi/hr. Another ship leaves the same port at 1:30 P.M. and tr

Len [333]

To solve this problem you must apply the proccedure shown below:

1. You must apply the Law of Cosines, as you can see in the figure attached. Then:

- The first ship travels at $27 mi/hr$ in for two hours. Therefore, the side $a$ is:

$a=(27 mi/hr)(2 hr)=54mi$

- The second ship travels at $18 mi/hr$ for $1.5 hours$ . Therefore, the side $b$ is:

$b=(18mi/hr)(1.5hr)=27mi$

- Now, you can calculate $c$ :

$c=\sqrt{54^{2}+27^{2}-2(54)(27)Cos(55)}=44 mi$

The answer is: $44 miles$

8 0

2 years ago

I WILL GIVE 20 POINTS TO THOSE WHO ANSWER THIS QUESTION RIGHT NOOOO SCAMS AND EXPLAIN WHY THAT IS THE ANSWER

lubasha [3.4K]

Answer:

13.1

Step-by-step explanation:

A = bh

~~~~~~~

$b_{1}$ = 16 , $h_{1}$ = 9

A = 16 × 9 = 144

From another side area of parallelogram with hight "h" base "b"

11h = 144

h = 144 ÷ 11 ≈ 13.1

5 0

1 year ago

Grap f(x)=x^2+1/3(x-8)

gulaghasi [49]

Answer:

2019

Step-by-step explanation:

7 0

2 years ago