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Natali5045456 [20]
4 years ago
9

D=3b b=7 work out the value of D

Mathematics
2 answers:
Lunna [17]4 years ago
8 0

Answer:

The simplified system is the arbitrary solution of the original system of equations.

d = 21

b = 7

tino4ka555 [31]4 years ago
6 0

Answer:

d=3(7)

d=21

21 is your answer

Step-by-step explanation:

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During a 35% off sale at the furniture store, you found a chair with the original price of $84.61. How much will the sale price
Dafna11 [192]

Answer:55$

Step-by-step explanation:84.61 x .35 = 29.61

84.61 - 29.61 = 55

7 0
4 years ago
15. Evaluate the expression 13 ÷<br> (2.5-1-3).33.
OlgaM077 [116]

Evaluation of the expression using order of operation gives 26/11.

How to evaluate the expression

Given 13 ÷(2.5-1-3).33 =  13 ÷ 33( 2 x 5 - 1 - 3)

To evaluate this expression we need to apply the order of operation rule, BODMAS or PEMDAS.

13 ÷(2.5-1-3).33 =  13 ÷ 33( 2 x 5 - 1 - 3)  Evaluate multiplication

                         = 13 ÷ 33(10 - 1 - 3)        Evaluate what is in the bracket

                        =   13 ÷ 33(6)                  Evaluate division

                        = 13/33 x 6

                        = 78/ 33 = 26/11

Therefore, evaluating the expression gives 26/11.

Learn more about the order of operation on:

brainly.com/question/28360611

#SPJ1

3 0
1 year ago
Aaaaa PLEASE HELPPPPP
kotegsom [21]

There are 20 cups and each one holds 10 fluid ounces. Assuming that she wants to fill them all up to the brim and use the complete 10 fluid ounces for each cup this means she would have a total of 200 fluid ounces: 20 * 10 = 200

1 gallon = 4 quarts

1 quart = 32 fluid ounces

This means that for every gallon she has 128 fluid ounces: 1 gallon (4 quarts/1gallon)(32 fluid ounces/1 quart) = 128

This means she needs at least 200 fluid ounces and she must buy another gallon to satisfy this; 128 * 2 = 256 fluid ounces.

She needs to buy 2 gallons but will have an extra 56 fluid ounces

8 0
4 years ago
What is the answer for 27^x=9^x-4
Arada [10]

<u>Answer:</u>

x = -8

<u>Step-by-step explanation:</u>

We are given the following expression which we are to solve for x:

2 7 ^ x = 9 ^ { x - 4 }

For this expression, we will make the bases same on both sides of the equation and then equate the exponents equal to each other.

(3^3)^x = (3^2)^{x-4}

Multiplying the exponents and equating them to get:

3 x = 2 ( x - 4 )

3 x = 2 x - 8

3 x - 2 x = - 8

x = -8

8 0
4 years ago
Read 2 more answers
FInd the value of x.<br><br> I'm not sure how to do this..
Dvinal [7]

The labeled angles form a vertical pair. Vertical angles are congruent to one another, so

-26+4x=3x+2

Then you just solve for x.

-26+4x-3x=3x-3x+2\implies-26+x=2

-26+26+x=2+26\implies x=28

6 0
4 years ago
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