Let

the number of white marbles in Jar 1
Let

the number of white marbles in Jar 2
Total number of white marbles is

Jar 1 has

white marbles and

red marbles so

marbles total
Jar 2 has

white marbles and

red marbles so

marbles total
Since both jars have equal amounts of marbles,

We have a system of equations:


The number of red marbles in Jar 2 is

so we solve for


⇒

⇒

⇒

⇒

Number of red marbles in Jar 2 is

So there are 360 red marbles in Jar 2.
Step-by-step explanation:
a)<PTR=90°(angles in a semicircle)
<RPT=50°
<PRT + <PTR + <RPT=180°(angles in a triangle)
<PRT=180-(90+50)
<PRT=40°
b)From ∆QTS
<TQS = <RTP =50°
<QTS=180-(50+28)
<QTS=102°
c)<QTR=180-(90+50)
<QTR=40°
Answer:
y=-3
Step-by-step explanation:
y+3=0
y+3-3=0-3
y=-3
Answer:
225
Step-by-step explanation:
185-(-40)=
185+40=
225
Answer:
5d+3
Step-by-step explanation:
just as you combine regular numbers you can combine terms that have the same variable raised to the same exponent, and 7d-2d=5d. So the equation simplifies to 5d+3