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zhenek [66]
3 years ago
6

7. If the value of x varies directly with the value of y, and x = 3 when y = 21. What is the valu

Mathematics
2 answers:
gulaghasi [49]3 years ago
6 0
So basically

When x = 3 , y= 21

3/21 = x/105

What number times 21 is equal to 105?
21* 5 = 105

So 3* 5 = 15

When x= 15, y= 105

Hope this helps!
konstantin123 [22]3 years ago
3 0

Answer:

15

Step-by-step explanation:

Because x=y÷7

i.e,105÷7=15

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14 is 10% of ____?<br> Or what is 14 10% of
leonid [27]

Answer:

THE ANSWER TO THE TOP LINE IS: 140

Step-by-step explanation:

why? becuase 10 times 10 is 100 all whole fractions need to be ?/100 (something over 100) so then becuase you did 10 times ten to find what 14 is you do 14 times 10. it should look like this :D.

10*10=100

14*10=140 .         140/100 is your answer or 140 :)

3 0
2 years ago
CAN SOMEONE PLEASE HELP ME!!!!!
USPshnik [31]

Answer:

Step-by-step explanation:

2{5x²-15+(-9xy²)}-(2y²+4x-xy²)+3x²

=2{5x²-15-9xy²}-(2y²+4x-xy²)+3x²

=10x²-30-18xy²-2y²-4x+xy²+3x²

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8 0
3 years ago
If X = 13 units, Y = 12 units, and Z = 15 units, what is the volume of the rectangular prism shown above?
Basile [38]

Volume of the Rectangular prism  is 2340 square units

Step-by-step explanation:

Given:

X = 13 units,

Y = 12 units,

Z = 15

To Find:

The volume of the rectangular prism = ?

Solution:

The volume of the rectangular prism = X \times Y \times Z

On substituting the values,

Volume of the Rectangular prism  =13  \times 12 \times 15

Volume of the Rectangular prism  = 2340 square units

3 0
3 years ago
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Zina [86]
Quotient means divide
95/x <== ur expression
6 0
3 years ago
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quester [9]

Answer:

20% or 0.2

Step-by-step explanation:

u do 14÷70=0.2

to get the percent you move the decimal two places right

0.2⇒20.0⇒20%

3 0
3 years ago
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