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DENIUS [597]
3 years ago
11

two boxes of apples contain a total of 24 apples. if you halve the number of apples in the first box and add 4 apples to the sec

ond box, the total changes to 20 apples. how many apples are in each box initially?
Mathematics
2 answers:
Llana [10]3 years ago
8 0
There was 16 apples in the first box and 8 apples in the second box initially.
stira [4]3 years ago
3 0

Answer:

16 in first and 8 in second

Step-by-step explanation:

Let the number of apples be x in the first box then the number in the second box will be 24-x

if we half the number of apples in first box we get  \frac{x}{2}

And we add 4 apples in the second box we get 24-x+4=28-x

Since the apples in the two boxes were 20  we get

\frac{x}{2}+28-x=20

x+56-2x=40

After simplification we get:

x=16

Hence, number of apples in first box were x that is 16

And number of apples in second box were 24-x that is 24-16 is 8


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Solve by using substitution<br>-4x+y=6   and   -5x-y=21  
NeX [460]
So if you're solving by substitution, one equation must be in slope intercept form. Ill just go with the first one. 

-4x+y=6
<u>+4x        +4x
</u>y=6+4x

Now substitute the value of y in for the value of y in the second equation:
-5x-(6+4x)=21
-5x-6-4x=21
-9x-6=21
<u>     +6  +6
</u><u>-9x=27
</u>-9    -9

x=-3

Now input that into the first equation:
-4(-3)+y=6
12+y=6
<u>-12    -12</u>
y=-6


I HOPE THIS WAS HELPFUL! If it was, please rate my answer!

3 0
3 years ago
Read 2 more answers
50 points and Brainliest for you big brains ;)
Vsevolod [243]
There is no photo that is shown?
4 0
3 years ago
A surveyor measured the angle of elevation of a flat spire as 15 degree from a point in horizontal group.He movrs 30m nearer to
frozen [14]

Answer:

11.28m

Step-by-step explanation:

The computation of the height of the spire is shown below:

let us assume the height of the spire be x

Now

For triangle ABD

Tan 43 degrees = h ÷ x

x = h × cot 43 degrees

= 1.07236 h

For triangle ABC

tan 15 degrees = h ÷ (30 + x)

0.2679 = h ÷ 30 + 1.07236h

8.038 + 0.28728 h = h

h = 11.28m

8 0
2 years ago
A student said that x = 4 was not a solution to the question 3(x -6) = -8
Morgarella [4.7K]

Answer:

Step-by-step explanation:

3 (4 -6) = -8 is correct.  The next step is to combine 4 and -6, obtaining

3(-2)

and this 3(-2) should equal -6, which is not the same as -8.

3(4 - 6) = 12 - 18, which differs from the student's solution.  This is the reason for the wrong answer.

6 0
2 years ago
Rafael took 4 pumpkin pie to a family gathering. If he divides each pie into six equal sizes slices how many slices can he serve
11Alexandr11 [23.1K]
The answer is: 24 
6 slices each pie and there is 4 pies so multiply 6 by 4 and u get 24


8 0
3 years ago
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