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DIA [1.3K]
3 years ago
9

Use one or more properties to rewrite each expression as an expression that does not use parentheses.

Mathematics
1 answer:
maria [59]3 years ago
4 0

Answer:

b + 9

Step-by-step explanation:

Given:

(b + 3) + 6

Required:

Rewrite expression without the parentheses.

SOLUTION:

(b + 3) + 6

Eliminate the parentheses

b + 3 + 6

Add like terms

b + 9

Thus:

(b + 3) + 6 = b + 9

You might be interested in
9. Raju sells a watch at 5% profit. Had he sold it for 24 more he would have gained 11%. Find the cost price of the watch.​
Ede4ka [16]

Answer:

400$

Step-by-step explanation:

Let C.P. of the watch = Rs. 100

When profit =5%; S.P. = Rs. (100+5)

= Rs. 105

and when profit = 11%;

S.P. = Rs. (100+11)

=Rs.111

Difference of two selling prices

= Rs. 111-Rs.105 = Rs.6

When watch sold for Rs. 6 more; then C.P. of the watch = Rs.

100

6

When watch sold for Rs. 24 more; then C.P. of the watch = Rs.

100

6

×

24

= Rs.

100

×

24

6

=400

7 0
2 years ago
WHAT IS THE LINE OF BEST FIT FOR THE FOLLOWING DATA (1,3) (2,0) (5,-8) (9, -25) . WRITE YOUR ANSWERS IN THE FORM OF Y= AX+ B​
dimulka [17.4K]

Answer:

3.471 + 7.2516 x

Step-by-step explanation:

Given the data:

(1,3) (2,0) (5,-8) (9, -25) .

X:

1

2

5

9

Y:

3

0

-8

-25

The line of best fit for the data given can be obtained using an online regression calculator :

The equation of best fit for the data is thus;

Best fit equation; y = -3.471 + 7.2516x

Intercept = - 3.471 ;

Slope = 7.2516

5 0
3 years ago
Identify the level of measurement of the​ data, and explain what is wrong with the given calculation. In a set of​ data, alert l
jonny [76]

Answer:C. Ordinal

The data should not used to calculate the average.

Step-by-step explanation: Ordinal level of measurement is the second level of measurement that is concerned with ordering, ranking and classification of data,it does not show the rate or degree of variation between a set of data.

Stanley Smith Stevens is the one who classified data into four levels of measurement,he is a psychologist and a statistician, the data collected should not be used to calculate the AVERAGE of a set of numbers.

5 0
4 years ago
How do i find the values of x and y that make the quadrilateral a parallelogram​
kow [346]
4x+13=5x-12
-4x. +12

25=x

3(25)-8=4y+7
75-8=4y+7
67=4y +7
-7


60=4y
y=15

lol i know this is correct bc this was a problem on my homework a couple days ago and i got it right
7 0
3 years ago
Lease help...
m_a_m_a [10]
Bank A = 1000 x  (1 + (0.04*6)) = $1,240

Bank B = 1000 x (1+0.03)^6 = $1,194.05

Bank A would be worth more

6 0
4 years ago
Read 2 more answers
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