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docker41 [41]
3 years ago
14

PLEASE HELP ME I DONT UNDERSTAND

Mathematics
1 answer:
FromTheMoon [43]3 years ago
3 0
3x + 2y = 4
subtract 3x from both sides
2y = -3x + 4
divide both sides by 2
y = -3/2x + 2
LETTER A
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Tom is 4 more than twice Andrew's age. Sara is 8 less than 5 times Andrew's age. If Tom and Sara are twins, how old is Andrew?
Ket [755]
T=2A+4 
S=5A-8
If Tom and Sara are 10 years old,
10=2A+4
6=2A
3=A
Not sure though
6 0
3 years ago
Read 2 more answers
Jeremiah invested money into two different accounts at the same time. The system of inequalities represents the balance of each
olasank [31]

Answer:

1st statement is true.

2nd statement is false.

3rd statement is true.

Step-by-step explanation:

We have been given two inequalities and we are asked to find out whether the given statements are true or false.

y\geq 1.2x+100 represents balance of account A and y\geq 1.23x+50 represents balance of account B.

1. We can see from our inequalities that Jeremiah initially invested $100 in account A and $50 in account B. Therefore, 1st statement is true.

2. The rate at which balance of account A grows is 1.2 and rate for account B is 1.23. Therefore, 2nd statement is false.

3. We can find total amount Jeremiah invested in two accounts by adding initial investment of both accounts, that is 100+50=150 . Therefore, 3rd statement is true.

4 0
4 years ago
PLEASE HELP DONT LINK FILES
Vlad [161]

Answer:

10 cm³

Step-by-step explanation:

I could have used Area = height×length×width, but I counted instead :)

When I counted, I got 30/3 cm³ which is 10 cm³

4 0
3 years ago
1. Simplify 3 + 5[5 + (7 - 3) - 32]
goldfiish [28.3K]

Answer:

see below

Step-by-step explanation:

3+5(5+7−3−32)

=3+5(5+4−32)

=3+5(9−32)

=3+(5)(−23)

=3+−115

=−112

6 0
3 years ago
Read 2 more answers
Please help 15pts<br><br>In the diagram below,<br>m A = 68° and m D = 133°
Margarita [4]
The sum of exterior and interior angles is 180
so if D is 133, C will be:
180 - 133 = 47
angle C measures 47 degrees
5 0
3 years ago
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