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blagie [28]
3 years ago
9

Carl is estimating 653 - 644. His work is shown below.

Mathematics
1 answer:
victus00 [196]3 years ago
7 0

Answer:

actual difference is 9

Step-by-step explanation:

the estimate is not reasonable.

he should have done 650-640.

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When number can each term of the equation be multiplied by to eliminate the fractions before solving 6-3/4x+1/3=1/2x+5​
PolarNik [594]

Answer:

12

Step-by-step explanation:

You need to find the least common denominator (LCD) to all the denominators of the fractions present in the equation. These denominators are (writing them in their prime factor form to make our calculations easier):

4=2^2\\3=3\\2=2

Therefore, we need to include a factor of 3, and two factors of 2 (2^2) in our least common denominator, so this LCD will be a perfectly divided by all three given denominators, therefore eliminating all fractions in the equation.

Our LCD is = 3*2^2=13*4=12

6 0
3 years ago
M^2 - 4m +8 = -21 <br> Solve the quadratic equation by completing the square
pshichka [43]

Answer:

m^2-4m=-29

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(m-2)^2=-25

m=2+-5i

6 0
3 years ago
PLEASE ANSWER ASAP!
muminat

Answer:

I think it volume will be 234m3

7 0
2 years ago
There is a sales tax of $6 on an item that costs $64 before tax. The sales tax on a second item is $8.25 . How much does the sec
bulgar [2K]
The second item would be $88 before tax since the tax rate is <span>9.375%</span>
5 0
3 years ago
Find all values of x that make the triangles congruent. Explain your reasoning.
RSB [31]

Answer:

x = \frac{4}{5},5

Step-by-step explanation:

If both the triangles ΔABC and ΔBCD are congruent,

Corresponding sides of both the triangles will be proportional.

\frac{AB}{BD}=\frac{AC}{CD}

\frac{5x}{3x+10}=\frac{5x-2}{4x+3}

5x(4x + 3) = (5x - 2)(3x + 10)

20x² + 15x = 15x² + 50x - 6x - 20

20x² + 15x = 15x² + 44x - 20

20x² - 15x² = 44x - 15x - 20

5x² = 29x - 20

5x² - 29x + 20 = 0

5x² - 25x - 4x + 20 = 0

5x(x - 5) - 4(x - 5) = 0

(5x - 4)(x - 5) = 0

x=\frac{4}{5},5

3 0
3 years ago
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