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3 years ago

Please help me And explain

Mathematics

1 answer:

ziro4ka [17]3 years ago

6 0

Answer: 144

Step-by-step explanation:

ABD plus DBC makes up ABC so when you add the two it will give you a whole (76+68).

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What is the formula for a proportional relationship

BigorU [14]

Answer:

y=kx

Step-by-step explanation:

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3 years ago

Which expression is equivalent to 56÷7?

Nady [450]

Is this a multiple choice question?

8 0

3 years ago

Point B splits a segment AC with ratio AB:BC=2:1. Point D splits a segment AB with the ratio AD:DB=3:2. What is the ratio for AD

Paraphin [41]

Answer:

The ratio for AD:DC is 2:3

Step-by-step explanation:

The given information are;

The ratio by which point B splits AC as AB:BC = 2:1

The ratio by which point D splits AB as AD:DB = 3:2

Therefore, we have;

The fraction of AC that is equal to AB is given as follows;

AB = 2/(2 + 1) × AC = 2/3 × AC

AB = 2/3 × AC

Similarly

BC = 1/3 × AC

Also the fraction of AB that is equal to AD is given as follows;

AD = 3/(3 + 2) × AB = 3/5 × AB

AD = 3/5 × AB

Therefore, the fraction of AC that is equal to AD is given as follows;

AD = 3/5 × AB = 3/5 × 2/3 × AC = 2/5 × AC

Therefore, DC = (1 - 2/5) × AC = 3/5 × AC

Which gives the ration of AD to DC or AD:DC as being;

AD:DC = 2/5 × AC : 3/5 × AC = 2/5:3/5 = 2:3

The ratio for AD:DC = 2:3.

6 0

4 years ago

Container a and b hold 11,875 liters of water altogether. Container b holds 2,391 liters more than container a holds. How much w

Viefleur [7K]

Container A holds x liters of water.
Container B holds 2391 liters of water more than container A, so container B holds x+2391 liters of water.
Container A and B hold 11875 liters of water altogether.

$x+x+2391=11875 \\
2x+2391=11875 \\
2x=11875-2391 \\
2x=9484 \\
x=\frac{9484}{2} \\
x=4742$

Container A holds 4742 liters of water.

5 0

3 years ago

Find the common differece of the sequence: 2,9,16,23

riadik2000 [5.3K]

So if 2 is the first term then if n=1 then n+1=sequence so far but

second term is 9 so if n=2 then the 2nd term=9
you must use trial and error to find
so it is
7n-5 so if n=1 then
7(1)-5=7-5=2

if n=2 then
7(2)-5=14-5=9
sucess

the equation is 7n-5

4 0

3 years ago

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