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allsm [11]
3 years ago
15

SOLVE THE FOLLOWING BY SUBSTITUTION AND PLEASE SHOW STEPS:

Mathematics
2 answers:
Elza [17]3 years ago
6 0
5x + 2y =9
X + y= -3

5x+2y=9
2x+2y=-6
__________
3x =15
X =5


5+y=-3
Y=-8

Answer is : (5,-8)
Kamila [148]3 years ago
4 0
In a picture below it wrote the answer and steps

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Fill in the blank with the correct number.
White raven [17]

Step-by-step explanation:

I think both 3 and 9

D options

5 0
3 years ago
The perimeter of a right angled triangle is 56 cm and its hypotenuse is 25 cm. Find the area of triangle.​
Daniel [21]
Perimeter = 56
Hypo = 25
So 56-25 = 31 (for two side)
for one side = 31/2 = 15.5

so area = 1/2 x base x height
6 0
3 years ago
Help me solve this question
irga5000 [103]
The correct answer is 1.

So, circle the 0 after the equals sign because the equation does not equal 0.

Anything raised by the power of 0 is 1.

This is known as the zero exponent rule :)
8 0
3 years ago
A radio station had 170 tickets to a concert. They gave away 4 times as many tickets to listeners as to employees. How many tick
never [62]
Employees: 34

170÷4x +1x
170=5x
34=x

1x=34 Employees 4x= 136 Listeners
5 0
3 years ago
What is the best approximation for the perimeter of a semicircle with a dimeter of 12cm?
taurus [48]
Answer is choice B: the circumference of a circle is the same as perimeter and is defined by πd (or pi times diameter) We can cut this in half because we are working with a semicircle: so we have 6π which approximates to the value in answer when using 3.14 for pi Woops: forgot to add the diameter of 12 so we would have 30.84
6 0
3 years ago
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