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Lelu [443]
3 years ago
10

If a and b are two digits, then the following fraction

Mathematics
2 answers:
Andrews [41]3 years ago
6 0

Answer:

B. 1010

Step-by-step explanation:

<u>Simplify:</u>

  • (ab0+ab0ab) ÷ (ab) - 1

<u>Note that:</u>

  • ab = 10a +b
  • ab0 = 10* (10a + b) = 10ab
  • ab0ab = 1000ab + ab = 1001 ab

<u>Therefore:</u>

  • (ab0+ab0ab) ÷ (ab) - 1 =
  • (10ab + 1001ab) ÷ (ab) - 1 =
  • (1011ab) ÷ (ab) - 1 =
  • 1011 - 1=
  • 1010

<u>Correct choice is</u> B.1010

viva [34]3 years ago
3 0
The answer to this is B.
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Find the common difference of the arithmetic sequence -19, -16, -13, ...
Yuliya22 [10]

Answer:

d= +3

Step-by-step explanation:

1st term = -19

2nd term = -16

d = 2nd - 1st

d= -16-(-19)

d = +3

4 0
3 years ago
A tree was 17 feet tall when it was planted. It grew 8 times that height in 15 years.
Nataliya [291]

Answer:

A. 119 feet

Step-by-step explanation:

the height of tree right now =

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the differences = 136 -17 = 119 feet

6 0
2 years ago
Read 2 more answers
6 = 2 (y + 2)<br><br> find X <br> please
Elena-2011 [213]

Answer: y = 1

there no x, i think you meant y?

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

6=2(y+2)

6=(2)(y)+(2)(2)(Distribute)

6=2y+4

Step 2: Flip the equation.

2y+4=6

Step 3: Subtract 4 from both sides.

2y+4−4=6−4

2y=2

Step 4: Divide both sides by 2.

2y over 2 = 2 over 2

6 0
2 years ago
Jose asks his friends to guess the higher of two grades he received on his math tests. He gives them two hints. The difference o
denis23 [38]

Option D. 96 is the correct answer.

Explanation:

Let the higher grade be = x

Let the lower grade be = y

As given, The difference of the two grades is 16

x-y=16 or x=16+y   .... (1)

The sum of one-eighth of the higher grade and one-half of the lower grade is 52.

\frac{1x}{8}+\frac{1y}{2}=52   ... (2)

Putting the value of x=16+y in equation (2)

\frac{16+y}{8}+\frac{y}{2}=52

\frac{16+y+4y}{8}=52

\frac{16+5y}{8}=52

16+5y=416

5y=400

y=80

As x=16+y

x=16+80 = 96

Hence, higher grade is 96.


8 0
3 years ago
Which of the following is a result of the construction of a median of a triangle?
olga2289 [7]

9514 1404 393

Answer:

  A side of the triangle is bisected

Step-by-step explanation:

The median of a triangle connects a vertex to the midpoint of the opposite side. That is, it bisects the side it meets:

  A side of the triangle is bisected

_____

<em>Comment on other choices</em>

A median will be an angle bisector only if the triangle is isosceles. Likewise, it will only be perpendicular to the side if the triangle is isosceles.

There are several points called "center" of a triangle, including the centroid (on the median), the incenter, the circumcenter, and the orthocenter.

5 0
3 years ago
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