1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Natali [406]
2 years ago
7

Please help me with 9 I really need it

Mathematics
1 answer:
MissTica2 years ago
4 0

Answer:

605 boys

Step-by-step explanation:

If the ratio of boys to girls is 5:7

and there are 847 girls

we can plug this value into the ratio by doing something like:

5:7

= 5/7

= x/847

Because the ratio has to be the same, we can substitute x for the number of boys and solve by the cross method or whatever you guys call it.

5            x

---   x    ------

7          847

The x in the middle is just to show the direction you are multiplying.

the 5 is multiplied by the 847 and the 7 is multiplied by x.

847 * 5 = 4,235

4,235  divided by 7 is 605

605 is your answer.

The cross method can be used in most situations.

* is used to represent multiplication btw

You might be interested in
Please help
Mumz [18]

Step-by-step explanation:

multiplying expressions.

remember every term of one expression has to be multiplied with every term of the other expression, and the results are added up (while considering their individual signs, of course).

1.

(-3×3 + 2x - 4)(3x - 2)

(-9 + 2x - 4)(3x - 2)

(-13 + 2x)(3x - 2) = -13×3x + -13×-2 + 2x×3x + 2x×-2 =

= -39x + 26 + 6x² - 4x = 6x² - 43x + 26

2.

let's do the other multiplication and compare the result with the result of 1 :

(-13 + 2x)(2x - 3) = -13×2x + -13×-3 + 2x×2x + 2x×-3 =

= -26x + 39 + 4x² - 6x = 4x² - 32x + 39

no, this product is not the same as in 1.

8 0
2 years ago
A cube has depth of 10 cm. What is the volume of the cube?
shusha [124]
The answer is 10x10x10=1,000
ten times ten times ten is one thousand
8 0
2 years ago
Help plz helpppppppppppp plzzzzzzzzz ​
zzz [600]

it's 5 days, if you need an explanation feel free

5 0
3 years ago
Read 2 more answers
Which of the following is the smallest element in the set of natural numbers?
fredd [130]

Answer:

your answer would be 0 mark as brainliest

4 0
2 years ago
Write an expression to represent susans age in three years when a represents her present age.
Zarrin [17]
Well, since a is Susan’s current age, we would add three to a to get her age in three years
So our expression would be:
a + 3
4 0
3 years ago
Read 2 more answers
Other questions:
  • How do you solve this problem: 2y(6 - 1)(6 - 1) = - 200
    13·2 answers
  • Find the height of a triangle with area 85 1/3 ft squared and base 10 2/3 feet squared
    6·1 answer
  • What’s the measure of x
    15·1 answer
  • Lina took out a 4-year loan for $14,000 to buy a new car. She has to pay 4% simple interest on the loan. How much will Lina have
    12·1 answer
  • What is the value of the expression –7 – 5 + 4?
    14·2 answers
  • 328,512 nearest thousand
    14·1 answer
  • How do I use Pythagorean Theorem to find out if a triangle has a right angle
    14·1 answer
  • What do l do??? Need help
    11·2 answers
  • . <br> Find the value of x for which ABCD must be a parallelogram.
    12·1 answer
  • Points A, B, and C are located on a circle, and chords exist between all three points. If the measure of ∠BAC is 88°, what is th
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!