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valina [46]
3 years ago
10

The sum of two numbers is 47. The greater number is 9 more than the smaller number. Which equation can be used to solve for the

smaller number?
Ox+(x + 9) = 47
Ox - (x + 9) = 47
OxIx + 9) = 47
xix - 9) = 47
For big exam! Help
Mathematics
2 answers:
Stels [109]3 years ago
4 0

Answer: x+(x+9)

Step-by-step explanation:

Snezhnost [94]3 years ago
3 0

Answer:

Step-by-step explanation:

We are given

X + Y = 47\\and\\Y = X + 9\\\\use \: substitution\\X + (X + 9) = 47

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Quadrilateral OPQR is inscribed in circle N, as shown below. Which of the following could be used to calculate the measure of ∠O
spin [16.1K]

Answer:

m<OPQ + (x+16)° + (6x - 4)° = 360°

Step-by-step explanation:

the sum of interior angles of a polygon with 4 sides is 360

therefore you sum up all of the figures and equate to 360

6 0
3 years ago
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I need help someone ....
kvasek [131]

Answer:

162 ft^2

Step-by-step explanation:

18 * 18 = 324

324/2 = 162

The area of the patio is 162 square feet

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In the figure below, BD bisects ∠ABC. What is the length of AB?
dimaraw [331]

Answer:

D. 12

Step-by-step explanation:

Based on the Angle Bisector theorem, the opposite sides of ∆ABC are divided into proportional segments alongside the two other sides of the triangle, as BD bisects the <ABC. This implies that:

AB/AD = CB/CD

Substitute

AB/8 = 6/4

Cross multiply

AB*4 = 6*8

AB*4 = 48

AB = 48/4

AB = 12

3 0
3 years ago
Show how Carly can work out 171/2% of 240 in her head
KATRIN_1 [288]

17 ½ % of 240

First option

Change  the fraction ½ to a decimal. It would be 0.5 ( 1 divided by 2)

½=0.5

You will add the whole number 17 to the result.

17 + 05 = 17.5

Now you will divide by 100 (percent)

17.5 /100  To divide a decimal by 100,  move the decimal point two places to the left.

17.5 /100 = 0.175   times 240

0.175 x 240 = 42

Second option

Change the percent to an improper fraction

17 ½= 35/2 (you have to multiply (2 x 17) plus 1 equals 35 over 2 ( keep the denominator). It will be 35/2.  Put the other number (240) over 100 and multiply.

35/2 x 240/100 = 42

There is another way . You can simplify

Cancel all the zeros that you have and start to reduce.

            6

7       12

35 x 24<span> 0   </span> =  42

2       10 0

 1          5

           1

17 ½ % of 240  =  42

5 0
3 years ago
A textbook is opened and the product of the page numbers of the pages is 6162. What are the numbers of the pages?
ss7ja [257]

Answer:

The two page numbers are 78 and 79.

Step-by-step explanation:

Let's take the page numbers are x and x + 1 .

The produce of the page numbers is 6162

so, x(x + 1) = 6162

x^{2} + x -6162 = 0

Here we have to use the quadratic formula to solve for x.

The quadratic formula, x = \frac{-b +/- \sqrt{b^2 - 4ac} }{2a}

Here a =1, b = 1 and c = -6162

Plugging in the value of a, b and c in the above formula, we get

x = [-1 ± 157] ÷ 2

Let's take the positive value alone since the page number cannot be negative.

x = [-1 + 157] ÷2

x = 78

The next page number x + 1 = 78 + 1 = 79

Therefore,  the two page numbers are 78 and 79.

6 0
3 years ago
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