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melisa1 [442]
3 years ago
15

Is (5,15) a solution of the equation y=3x?

Mathematics
2 answers:
LenKa [72]3 years ago
8 0

yes because if you put 5 instead of x, y will be 15.

kolezko [41]3 years ago
4 0

yes cause u basicly saying 15=5times3

You might be interested in
a farmer uses 1/3 of his land to plant cassava 3/5 of the remaining land to plant Maize and the rest vegetables if vegetables co
Rzqust [24]

Answer:

37.5 acres.

Step-by-step explanation:

Fraction of his land  where vegetables are grown

= 1 - 1/3 - 2/3 *3/5

(after taking away 1/3 we get 2/3 and the farmer uses 3/5 of this 2/3 to grow Maize.

= 1 - 1/3 - 6/15              LCD of 3 and 15= 15  so we write:

= 1 - 5/15 - 6/15

= 1 - (5+6)/16

=  1 - 11/15

= 4/15.

4 /15 is equivalent to  10 acres

so  total  area (= 1)  =   10 / 4/15     Invert the 4/15 and multiply:

= 10 * 15/4

=  150/4

= 37.5 acres.

3 0
3 years ago
I need help in the two questions
Sholpan [36]
Y-5=3-9 (y+2)
Solve for y
Distribute the 9 to (y+2)
Y-5=3-9y-18
Y-5=-15-9y
+9y to both sides
10y-5=-15
+5 to both sides
10y=-10
÷10 both sides
Y= -1

2 (x-7)-10=12-4x
Solve for X
Distribute 2 to (x-7)
2x-14-10=12-4x
2x-24=12-4x
+4x to both sides
6x-24=12
+24 to both sides
6x=36
÷6 to both sides
X=6
3 0
3 years ago
Evaluate the expression 3x - 22 for x = -5
kolezko [41]

Answer:

-37

Step-by-step explanation:

4 0
2 years ago
Hello can somedy help me please<br> thank you in advance
uysha [10]

Answer:

circumference of the circle=2πr

2 \times 3.142 \times 0.9 \\5.6556cm

5.7 cm

5 0
2 years ago
Find (f o f)(0). f(x)=x^2-1
Anuta_ua [19.1K]

Answer:

The function operation is 0

The composite function is -1

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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