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2 years ago

Solve: 3a - 2.4 = 5.1 a = _____

Mathematics

1 answer:

Delicious77 [7]2 years ago

7 0

Answer:

a=2.5

Step-by-step explanation:

3a-2.4=5.1 Add the like terms ( plus 2.4 cancels out -2.4)

+2.4 +2.4

3a=7.5 Now divide by 3

/3 /3

a=2.5

You might be interested in

How can you use distributive property to find 3/4 times 2 and 1/3

zubka84 [21]

Answer:

1 3/4

Step-by-step explanation:

You can set it up like the distrubtive property first

3/4(2+ 1/3) Next you use the distirbutive property instead of adding inside the parenthesis and you multiply the 3/4 by 2 and then the 3/4 by 1/3

Use 2 as 2/1 in fraction problems

3/4 * 2/1 Now multiply the numerators together and the denomenators together

3 * 2 = 6 4 * 1 =4

6/4

3/4 *1/3

3 * 1 =3

4 * 3 =12

3/12

Now we have to make them both like terms (same denominator) so we can add them, we will multiply the 6/4 by 3 (Both top and bottom)

6 * 3 = 18 4 *3 =12

18/12

Now we add the fractions

3/12 +18/12 = 21/12

Reduce that and you get

21/12 = 1 9/12 or 1 3/4

5 0

2 years ago

If two angles of one triangle are congruent to two angles of another triangle then what can you conclude about the third angles

Mrrafil [7]

That the third angles are congruent

7 0

3 years ago

Determine the value of x and y in the following systems of equations5x-2y=4 ; -2x+y=2.

V125BC [204]

Answer:(x,y)=(8,18)

Step-by-step explanation:

Given

5x-2y=4-------1

Second Equation

-2x+y=2-----2

Now multiply equation 2 by 2 and it to equation 1

5x-4x+0=8

x=8

substitute it in equation 1

$5\times 8-2\times y=4$

36=2y

y=18

Therefore

(x,y)=(8,18)

7 0

2 years ago

I will mark you brainliest if your answer is right

rusak2 [61]

12.72 is the answer

8 0

2 years ago

Given log4(3) =0.7925 and log4(5) =1.1610, use log properties to find log4(300).

Ede4ka [16]

Answer:

4.1145

Step-by-step explanation:

You can use the following formula to solve this kind of problems,

$log_{a}(b) + log_{a}(c) = log_{a}(bc)$

So, let's start of with log4_(300). Since the question have already gave log4_(3) =0.7925 and log4_(5) =1.1610. It means that you have to split the 300 into the simplest form where almost all of the numbers are 3 and 5.

$log_{4}(300) = log_{4}(4 \times 5 \times 3 \times 5) \\ = log_{4}(4) + log_{4}(5) + log_{4}(3) + log_{4}(5) \\ = 1 + 1.1610 + 0.7925 + 1.1610 \\ = 4.1145$

5 0

2 years ago