MATHEMATICS MIDDLE SCHOOL

6/15=3/x solve for x

Answers

Answer 1
Answer:

Answer: 7.5


Step-by-step explanation:

• Cross multiply : start by multiplying 15 times 3

• You get 45, then you divide 45 by 6

• Therefore, this gives you 7.5

• Check your answer by plugging in 7.5 to x

• Both fractions should equal 0.4, meaning they are equal to each other
Answer 2
Answer:

Answer:15/2


Step-by-step explanation:

Related Questions

The year is 1714. You are in a dark Spanish prison. You wake up to find yourself tied to a table with ropes. In the darkness you hear a rhythmic swishing sound-something going back and forth, back and forth. Eventually your eyes get accustomed to the dark and see that the source of the sound is a sharp bade at the end of a long pendulum that’s swinging back and forth over your body. With each sweep it gets a little lower-and a little closer to your chest. You note how long it takes between those swishes: exactly 7 seconds. And with each swish, the blade drops 1 inch lower. The last passing was only 15 inches above your chest. It won’t be much longer before the blade slices right through you. Should you scream for help? That would probably just summon a guard, who would run through with a sword then and there. But wait! You see a rat by your arms and he’s gnawing at the rope that binds you to the table. In fact, he has only 1 minute to go before he gnaws through it all the way. When he does that, you can get free! Will the rat chew through the rope before or after the blade has slashed through your chest? How much time do you have exactly?
Maria and Jeff collect data on the number of cars that pass through an intersection every Monday morning for 2 months. They record the findings as 78, 158, 63, 71, 56, 67, 75, and 64. They each use different methods to summarize the typical number of cars that pass through the intersection at the specified time and compare their findings. Jeff says that, on average, 79 cars pass through the intersection each Monday morning. Maria disagrees and says that the mean should not be used and uses the median instead to describe the typical number of cars that passes through the intersection on any given Monday morning.A) What is the median value of the data?
Help please! I have choral practice...
A store has apples on sale for $3.00 for 2 pounds. How many apples can you buy for $9.00? I got about 18 apples, is that considered correct?
Multiply (1/3)(1/5)A. -1/10B. -1/15C. 1/15D. 1/10

Use the Distributive Property to find the price of 9 CDs that cost $13.99 each.

Answers

Answer:

The cost of 9 CD's is $125.91.

Step-by-step explanation:

The distributive property can be described as:

a(b+c)=ab+ac

Here given is that the cost of 1 CD is $13.99

We can write this cost as = 13+0.99

And the cost of 9 CD's can be calculated as:

9(13+0.99)

Further solving this we get

(9*13)+(9*0.99)

= 117+8.91=125.91 dollars

Therefore, the cost of 9 CD's is $125.91.
To use the distributive property, we "distribute" a value on the outside of a set of parentheses to all of the values on the inside of the parentheses. For example...

6(3 + 9) = 6*3 + 6*9

For your problem, you only have one value 13.99, but we can split it apart to make it a little easier to work with (like with mental math).  We can say that 13.99 is the same as 10 + 3.99.  Now we can take it and multiply by 9 with the distributive property...

9(10 + 3.99) =
9*10 + 9*3.99 =
90 + 35.91 =

$125.91

Angel has 4/8 yards of ribbon and Lenny has three 3/4 yards of ribbon to Angel and Lenny have the same amount of ribbons

Answers

Angel = 4/8 yds

Lenny = 3/4 yds = 6/8

6/8>4/8

The answer is no because 6/8 is 1/4 greater than 4/8
4/8 = 1/2 yard or 0.5 yards
3/4 = 0.75 yards
0.75 is greater than 0.5 therefore, no.

Anyone good at Linear Equations and Intercepts if so please help. This stuff makes me feel stupid. What are the intercepts of the line?

A.
x-intercept: 0; y-intercept: 5

B.
x-intercept: 5; y-intercept: 0

C.
no x-intercept; y-intercept: 5

D.
x-intercept: 5; no y-intercept

Answers

If I can offer a suggestion ... You ought to look back in your book, or notes,
or homework, and recall what "intercept" means, and what one looks like.

The "y-intercept" of an equation is the point where
the graph crosses the y-axis.
On this graph, the line crosses the y-axis at y=5 .

The "x-intercept" of an equation is the point where
the graph crosses the x-axis.
On this graph, the line never crosses the x-axis at all.
(That DOESN't mean the x-intercept is zero.  It means there isn't any.)

Eli earned $82 at his job when he worked for 10 hours. What was his hourly pay rate in hours per dollar? Express your answer in simplest form

Answers

Hourly rate = total money / total hours

Hourly rate = 82 / 10 = $8.20 per hour

Answer: $8.20 per hour

Step-by-step explanation:

$82 ÷ 10 hours = 8.2

PLZ help me it's is sooo hard

Answers

I'm not sure for number one, but for number 2 the answer to that one is the second tallest on the chart or on the histogram. For number 3 I'm not sure because i cant see the numbers there too blurry. I'm sorry but i hope i got the second one correct.

If i have 8 foot piece of wood to trim bookshelf, I need 100 inches lumber for trim, do i have enough lumber?

Answers

so first convert feet to inches
12 inches in 1 foot
8 feet
12 times 8=96
96 is less than 100
you don't have enough
There are 12 inches in a foot.  If you have an 8 foot piece of wood you have to multiple that by 12 inches.  8 x 12 is 96 inches.  If you need 100 inches you are short by 4 inches. 
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