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3 years ago

Help ! Will mark brainliest

Mathematics

2 answers:

Burka [1]3 years ago

8 0

The answer would be that she now has $530.40 in her account. The table has nothing to do with the question

tia_tia [17]3 years ago

6 0

The answer would be $530.4
$ 45.50 × 3 =$ 136.5
$ 666.90 -$ 136.5 = $530.4

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What method would be best to use 53=4(x-3)^2-11

Veronika [31]

Answer:

x = 7 , -1

Step-by-step explanation:

SOLUTION :-

$4(x-3)^2-11 = 53$

Add 11 to both the sides.

$=> 4(x-3)^2-11+11=53+11$

$=> 4(x-3)^2 = 64$

Divide both the sides by 4.

$=> \frac{4(x-3)^2}{4} = \frac{64}{4}$

$=> (x-3)^2 = 16$

Root square both the sides.

$=> \sqrt{(x-3)^2} = \sqrt{16}$

$=> x-3 = +4 \; or -4$

Here , x will have two values -

1) $x-3 = 4$

$=> x = 4 + 3 = 7$

2) $x - 3 = -4$

$=> x = -4 + 3 = -1$

VERIFICATION :-

When x = 7 ,

$4(x-3)^2 - 11 = 4(7 - 3)^2 - 11$

$= 4 \times 4^2 - 11$

$= 4 \times 16 - 11$

$= 64 - 11$

$= 53$

When x = -1 ,

$4(x-3)^2 - 11 = 4(-1 - 3)^2 - 11$

$= 4 \times (-4)^2 - 11$

$= 4 \times 16 - 11$

$= 64 - 11$

$= 53$

7 0

3 years ago

Rational expression. simplify 36m-48m over 6m.

ladessa [460]

One way is to find common factors

example

8/6=4/3 because 8/6, 8 and 6 have common factor of 2 so divide that out to get 4/3
basically divide the LCM from each

so factor

we can combine 36m-48m into -12m
we have
-12m/6m

common factor is 6m
-12m/6m=(-2)/1 times (6m)/(6m)=-2 times 1=-2

answer is -2

3 0

3 years ago

What is 3/10 of 14,00

Paraphin [41]

420

I’ll say that you should use your calculator

8 0

3 years ago

For Haydencurry and me 389 + 285

dangina [55]

674674674674674674674674

8 0

3 years ago

Read 2 more answers

The first bricklayer can build a wall in 15 days, the second bricklayer can build the same wall in 20 days. How long will it tak

Ugo [173]

Answer:

It takes 8 4/7 days for both bricklayers to build the wall together.

Step-by-step explanation:

The first bricklayer takes 15 days to build the wall, which means it builds 1/15 of the wall per day.

The second bricklayer takes 20 days to build the wall, which means it builds 1/20 of the wall per day.

So if they build the wall together, the expression below will tell how much of the wall they build per day together.

1/15 + 1/20

To add the fractions, we must find a common denominator, which is 60.

4/60 + 3/60, which equals 7/60.

So, they can build 7/60 of the wall per day together. How many days will it take them? We must find how many times 7 fits into 60, which can be done by solving 60/7, which is 8 4/7.

So, it takes 8 4/7 days for both bricklayers to build the wall together.

7 0

3 years ago