$13,000 was invested at 6% whereas $7,000 was invested at 10% using simple interest approach
What is simple interest?
Simple interest is determined as the amount invested multiplied by the interest rate and the number of years that investment lasts.
I=PRT
I=interest
P=principal
R=rate of return
T=time
Let X be the amount invested at 6%
I at 6%=6%*X*1
I=0.06X
The amount invested at 10% is 20,000-X
total interest=0.06X+0.10*(20000-X)
total interest=1,480
1480=0.06X+0.10*(20000-X)
1480=0.06X+2000-0.10X
1480-2000=0.06X-0.10X
-520=-0.04X
X=-520/-0.04
X=13,000
13,000 was invested at 6%
amount invested at 10%=20,000-X
amount invested at 10%=20,000-13,000
amount invested at 10%=7,000
Find out more about simple interest on:brainly.com/question/20690803
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Let's solve for x.
x
+
4
y
=
(
14
)
(
3
)
x
+
7
y
Step 1: Add -42x to both sides.
x
+
4
y
+
−
42
x
=
42
x
+
7
y
+
−
42
x
−
41
x
+
4
y
=
7
y
Step 2: Add -4y to both sides.
−
41
x
+
4
y
+
−
4
y
=
7
y
+
−
4
y
−
41
x
=
3
y
Step 3: Divide both sides by -41.
−
41
x
−
41
=
3
y
−
41
x
=
−
3
41
y
Answer:
x
=
−
3
41
y
The first answer in the choices
Answer:
A) x=14
Step-by-step explanation:
hello :
6(x − 2) − 4x = 16
6x-12 -4x =16
2x-12=16
add 12 : 2x=16+12
2x= 28
x=28/2=14
The number of nine-players team= 21 teams.
The number of ten-players team= 5 teams.
<u>Step-by-step explanation:</u>
<u>step 1:</u> The total players signed up for a volleyball league= 118 boys+121 girls= 239 players.
<u>step 2:</u> The coach first makes a 9 players team= 239-9= 230 members
In this stage, the number of 9 players-team is one.
<u>step 3:</u> The remaining 230 players cannot be divided equally into 9 players, since 230 is not divisible by 9.
<u>step 4:</u> Find the number within 230 that is divisible by 9 as a whole. Check for easy number (9*20= 180 is within 230)
Therefore, 230-180= 50 players are remaining.
In this stage, the number of 9 players-team= 1+20= 21 teams with 9-players.
The number of 10 players-team= 50 players/10= 5 teams with 10-players.
