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Bas_tet [7]
2 years ago
10

If the value of y value directly with x, which function represents the relationship between x and y when x=3 and y=21?

Mathematics
1 answer:
Jet001 [13]2 years ago
8 0

Answer:

y

=

2

9

x

Explanation:

If  

y

varies directly with  

x

then

XXX

y

=

k

⋅

x

for some constant  

k

Given  

x

=

30

→

y

=

20

3

implies

XXX

20

3

=

k

⋅

30

XXX

→

k

=

20

3

30

=

20

90

=

2

9

Step-by-step explanation:

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Solve the System of Equations
soldi70 [24.7K]

Answer:

Equations: x+y=80\,,\,2x+4y=216\,\,

number of chickens = 52

number of goats = 28

Step-by-step explanation:

Given: A small ranch has chickens and goats

Total number of heads = 80

Total number of legs = 216

To find: number of chickens and goats

To draw: the graph

Solution:

Let x denotes number of chickens and y denotes number of goats.

According to the question,

x+y=80\,\,(i)\\2x+4y=216\,\,(ii)

From (i), put x=80-y in (ii)

2(80-y)+4y=216\\160-2y+4y=216\\2y=216-180\\2y=56\\y=\frac{56}{2}=28

Put y=28 in equation (i)

x+28=80\\x=80-28=52

So,

number of chickens = 52

number of goats = 28

Download pptx
6 0
3 years ago
Can someone pls help i know this seems easy but its not for a none smart person like me
BabaBlast [244]

Answer:

1/2

Step-by-step explanation:

3/4 * 2/3 = 1/2

3 0
3 years ago
3^4 + 3 x 5 =<br> (the '^4' is an exponent)
Vesnalui [34]

Answer:

96

Step-by-step explanation:

3^4 = 3*3*3*3 = 9*9= 81

3*5=15

81 + 15 = 96

Hope this helps!!

4 0
2 years ago
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This is question What value does the 6 represent in the number 976.14?
UkoKoshka [18]

Answer:

Ones place

Step-by-step explanation:

9 in 976.14 is the hundreds place.

7 is the tens place.

6 is the ones place.

1 is the tenths place.

4 is the hundredths place.

8 0
3 years ago
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What is 12.31 as a mixed fraction
VashaNatasha [74]
12 31/100 is the mixed fraction because in a decimal all the numbers to the left are whole numbers and all the numbers to the right are numbers that are part of a whole. Just like in a mixed fraction there is a whole number and a fraction in a mixed number. Since 12 is in the left it is the whole number and since 31 is to the right and in the place value 31 is ending in the hundredths place so that's why the fraction is, 31/100. That's how you came to know that 12 31/100 is the fraction for 12.31.
4 0
3 years ago
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