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exis [7]
3 years ago
11

Plsss helpp mathhh and thank u if u answer

Mathematics
1 answer:
kompoz [17]3 years ago
7 0

Answer:

a. 60 centimeters

b. 67 centimeters

Step-by-step explanation:

a.

12 × 4 = 48

(6 × 4) ÷ 2 = 12

48 + 12 = 60

b.

7 × 10 = 70

(2 × 3) ÷ 2 = 3

70 - 3 = 67

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PRYZ is a rhombus. If RK = 5, RY = 13 and mYRZ = 67, find each measure.
lora16 [44]

Answer:

m∠YKZ = 90°

Step-by-step explanation:

PRYZ is a rhombus.

Property of a rhombus:

The diagonals of a rhombus are always perpendicular.

This means lines PY and RZ are perpendicular.

By definition of perpendicular lines, they intersect at right angle. Right angle has the measure of 90°, hence

m∠YKZ = 90°

8 0
3 years ago
Perform the indicated operation.<br><br> (-50) ÷ (-2)
KATRIN_1 [288]

(-50)/(-2)

= 25

when numbers with same signs are divided it gives positive sign........

4 0
3 years ago
Read 2 more answers
At a dog park , there are 10 black dogs, 5 brown dog, 2 white dog, and 12 multi color dogs​
Sophie [7]
What question are you trying to ask?
5 0
3 years ago
Read 2 more answers
Which of the following describes the variable that is changed in order to observe a response?
bija089 [108]
That would be an independent variable.
4 0
3 years ago
The system px +qy =r; fx + gy = h has solution(3,-1), where f,g,h,p,q, and r are nonzero real numbers.
Andrej [43]

The equivalent system of equations that would guarantee a solution of (3,-1) are

  • a. (p+f)x+(q+g)y= r+h and fx+gy=h
  • d. px+qy=r and (f-2p)x+(g-2q)y=h-2r
  • e. px+qy+r and 5fx+ 5gy = 5h

<h3>How to determine the system of equations?</h3>

The system of equations is given as:

px +qy =r

fx + gy = h

Add both equations

(p + f)x + (q + g)y = r + h

Multiply the second equation by a constant (say 5)

5fx + 5gy = 5h

Multiply the first equation by a constant (say 2)

2px + 2qy = 2r

The combination of any of the above equations to the given equation would guarantee a solution of (3,-1)

Hence, the equivalent system of equations are (a), (d) and (e)

Read more about system of equations at:

brainly.com/question/14323743

#SPJ1

6 0
2 years ago
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