All categories

3 years ago

I really need the answers for these I don't understand this

Mathematics

1 answer:

Yuri [45]3 years ago

8 0

I tryed my best to figure out what all of the numbers were. if i got any wrong then please tell me and i will put the right answer in the comments.

1) 3/5= 5/x (cross multiply)
3x=5(5)
3x=25
x= 25/3 -or- 8.33

2) 2/4=x/12 (cross multiply)
 2(12)=4x
 24=4x
 6=x
3) 10/x=5/9 (cross multiply)
10(9)=5x
90=5x
18=x
4) 5/5=x/18 (cross multiply)
5(18)=18x
90=18x
5=x

You might be interested in

Is Brainly most scanning for anyone else right now? And how do I fix it I have deadlines coming up

Studentka2010 [4]

Answer:

what-

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

PLZ HELP IM BEING TIMED!!!

Deffense [45]

Answer:

7√(x) = 14

Step-by-step explanation:

8 0

3 years ago

fran found this expression in her cookbook. 1/3 divided by 2.write a scenario that explains the expression and solve

mars1129 [50]

This may help:

There are $\frac{1}{3}$ gallons of lemonade.

Two friends share the lemonade.

What fraction of the lemonade does each friend receive?

To solve you do kcf or keep change flip.

You keep $\frac{1}{3}$ and change division to multiplication.

Then $\frac{2}{1}$ is changed to $\frac{1}{2}$

The answer would be $\frac{1}{6}$

Hope That Helps!

4 0

3 years ago

Factor out the GCF: 16x + 48

valentinak56 [21]

Answer: 16(x + 3)

Step-by-step explanation: When you're asked to a polynomial, the first thing you want to look for is the greatest common factor between the terms that are involved.

So what is the greatest common factor of 16x and 48?

The greatest common factor of 16x and 48 is 16 because

it's the largest number that divides evenly into 16 and 48.

The x does not qualify because it must appear in every term

to qualify for the GCF but here, it only appears in one term.

So a 16 factors out leaving us with each term divided by it

inside a set of parentheses so w eget 16(x + 3).

Notice that if we distributed the 16 through both terms,

we would end up with our original polynomial.

7 0

3 years ago

in an office building,92 offices are currently being rented. This represents 80% of the total units. How many offices are in the

8090 [49]

Answer:

Number of offices in the building = 115

Step-by-step explanation:

Let x be the total number of offices.

Then 80% x= 92 or 80/100 * x =92

Hence, x = 92*100/80 = 9200/80= 115

8 0

2 years ago