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liraira [26]
3 years ago
7

Set up the equation and solve. 5) 700 reduced by 4 times Mia's age is 500. How old is Mia?

Mathematics
1 answer:
Juliette [100K]3 years ago
4 0

Answer:

50

Step-by-step explanation:

the equation is 700-4x=500

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How many solutions exist for the system below? In two or more complete sentences, give the solution and explain how you solved t
11Alexandr11 [23.1K]

Answer:

See below

Step-by-step explanation:

y=-2x + 3

y = -2*3x​

Both equations are lines.

Two lines will intersect at one point

I will set the two equations equal and solve for the x coordinate.

-2x+3 = -6x

Add 2x from each side

3 = -4x

Divide by -4

-3/4 = x

Now find y

y = -6x

y = -6(-3/4)

y = 18/4 = 9/2

The solution is ( -3/4, 9/2)

7 0
3 years ago
Find the error and explain what there is incorrectly. Then, solve the problem correctly.
frez [133]
The problem is that 7^2 is 7*7, and the same for 8^2. The right answer is the square root of 15, or 3.87
3 0
3 years ago
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I tried 8 and 1 and this is probably and easy question but can you pls help
Anarel [89]

Answer:

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5 0
3 years ago
Solve for x please help me
Mademuasel [1]

x = 51.98

Step-by-step explanation:

tan 68 = opp/hyp = x/21

or

x = 21×tan68°

= 21(2.475)

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3 0
2 years ago
Find the missing values in each row. Use the percent equation. A: Principal: $100 Interest rate: 5% Time in years: 3 Interest ea
ANEK [815]

Answer:

A.) 15

B.) 1 year

C.) $50

D.) 1.5%

Step-by-step explanation:

The percentage equation goes thus:

Interest earned = principal * rate * time

A)

Principal: $100 Interest rate: 5% Time in years: 3 Interest earned

Interest earned = $100 * 0.05 * 3

Interest earned = $15

B.)

Principa;" $500 Interest rate: 4% Time in years: interest earned: $20

Interest earned = principal * rate * time

20 = 500 * 0.04 * time

20 = 20 * time

Time = 20 / 20 = 1

Time = 1 year

C.)

Principal: Interest rate:10% Time in years: 7 Interest earned:$35

Interest earned = principal * rate * time

$35 = principal * 0.1 * 7

$35 = principal * 0.7

Principal = $35 / 0.7

Principal = $50

D.)

Principal: $200 Interest rate: Time in years:2 Interest earned: $6

Interest earned = principal * rate * time

$6 = $200 * rate * 2

$6 = $400 * rate

Rate = $6/$400

Rate = 0.015 = 1.5%

7 0
3 years ago
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