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Lena [83]
3 years ago
13

Who can help me with this algebra thanks for your help guys.

Mathematics
1 answer:
timama [110]3 years ago
8 0

Answer:

30. 25÷5 = 10÷2

31. 3×3 = 6+3

33. 13+19 = 8×4

34. 14-2 = 6×2

Step-by-step explanation:


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What is the solution of this system of linear equations?
creativ13 [48]

Answer: D

Step-by-step explanation:

Consider the first equation. Subtract 3x from both sides.

y−3x=−2

Consider the second equation. Subtract x from both sides.

y−2−x=0

Add 2 to both sides. Anything plus zero gives itself.

y−x=2

To solve a pair of equations using substitution, first solve one of the equations for one of the variables. Then substitute the result for that variable in the other equation.

y−3x=−2,y−x=2

Choose one of the equations and solve it for y by isolating y on the left hand side of the equal sign.

y−3x=−2

Add 3x to both sides of the equation.

y=3x−2

Substitute 3x−2 for y in the other equation, y−x=2.

3x−2−x=2

Add 3x to −x.

2x−2=2

Add 2 to both sides of the equation.

2x=4

Divide both sides by 2.

x=2

Substitute 2 for x in y=3x−2. Because the resulting equation contains only one variable, you can solve for y directly.

y=3×2−2

Multiply 3 times 2.

y=6−2

Add −2 to 6.

y=4

The system is now solved.

y=4,x=2

6 0
2 years ago
Read 2 more answers
Which equations are true for x = –2 and x = 2? Select two options
nalin [4]

Answer:

Step-by-step explanation:

1+2

+2v+4

5 0
2 years ago
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The steps to convert to a decimal are shown below:
iragen [17]

Answer:

The actual answer is 9.25

Step-by-step explanation:

The mistake is in Step 4, as <u>4 × 2 = 8</u>, not 6

8 0
2 years ago
(-4)(5)+(-3)(-2) whats is it???
Vlada [557]

Answer:

-14

Step-by-step explanation:

(-4)(5)+(-3)(-2)

=-20+6

=-14

5 0
3 years ago
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A tennis ball travels at speed of 120 miles per hour.convert this rate to feet per second
Vanyuwa [196]
120\frac{mile}{hour}\\\\&#10;1 \ mile=5280\ feet\\&#10;1\ hour=3600\ seconds\\\\&#10;120\frac{mile}{hour}=120*\frac{5280}{3600}=\frac{120*5280}{3600}=\frac{633600}{3600}=176\frac{feet}{second}\\\\&#10;\boxed{120\frac{mile}{hour}=176\frac{feet}{second}}
4 0
2 years ago
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