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
Can someone please answer and explain thank you! I’ll mark brainliest
k0ka [10]

Answer:

Step-by-step explanation:

You first multiply the a with bx and c then after the answer when you multiply you "add" with it would be something like

ex: 6x+4=28

         - 4  -4     subtract both sides

------------------------

        6x=24      then divide 6 with 24.

         x= 3      

6 0
3 years ago
Read 2 more answers
Help plzzzz<br> The minimum value os 58<br> The median value is 82<br> The third quartile is 58
iragen [17]

Answer:

It is a box

Step-by-step explanation:

IT's a box ,because I had to put a stick in the box

4 0
3 years ago
Read 2 more answers
Simplify the radical expression63x^15y^9/7xy^11
Andre45 [30]
Are the 63x and the y being added or multiplied?

3 0
3 years ago
A canoe in still water travels at a rate of 12 miles per hour. The current today is traveling at a rate of 2 miles per hour. If
VARVARA [1.3K]

Answer:

It’s 60miles

Step-by-step explanation:

We assume the trip is "d" miles and that the "extra hour" refers to the additional time that a current of 2 mph would add. That is, we assume the reference time is for a current of 0 mph.

The time with no current is ...

 time1 = distance/speed

 time1 = d/12 . . . . hours

With a current of 2 mph in the opposite direction, the time is ...

 time2 = d/(12 -2) = d/10

The second time is 1 hour longer than the first, so we have ...

 time2 = 1 + time1

 d/10 = 1 + d/12

 6d = 60 + 5d . . . . multiply by 60

 d = 60 . . . . . . . . . subtract 5d

The one-way distance is 60 miles.

7 0
2 years ago
D=5 evaluate 4d <br> Help !!!
dedylja [7]

Answer:

20

Step-by-step explanation:

Substitute D=4  into 4 D.

4 x 5 = 20

7 0
3 years ago
Other questions:
  • Please someone help ASAP
    5·1 answer
  • there is 7 out of 11 people brought an umbrella to the beach. There were 99 people there. How many of them did NOT have a beach
    10·1 answer
  • PLS HELP KINDA EASY FAST IM TAKING A TEST PLS
    11·1 answer
  • What are the zeros of the quadratic function f(x) = 8x^2 – 16x – 15
    10·1 answer
  • The zookeeper had a huge bottle of the animals’ favourite liquid treat, Zoo Cola. The monkey drank 15 of the bottle. The zebra d
    12·1 answer
  • Write down an expression in terms of n for the next even numer after 2n+2
    15·2 answers
  • Whats the circumference of a circle if the radius is 4.6
    11·1 answer
  • The sides of a triangle are in the ratio 2:3:4 and the longest side is 20 cms longer than the shortest side. Compute the length
    13·1 answer
  • TRULY IN NEED OF HELP PLEASEE
    6·2 answers
  • Daniel ran ¾ of a mile every day for 7 days. How many miles did David run after seven days?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!