2 years ago

What is 15(2x/3)-15(3/5)+20(9/10)

Mathematics

1 answer:

victus00 [196]2 years ago

4 0

Answer:

hope this helped you

please mark as the brainliest (ㆁωㆁ)

You might be interested in

What is the quadratic formula song?

tiny-mole [99]

Step-by-step explanation:

pop goes the weasel is quadratic formula song

7 0

2 years ago

Write in expanded form 72.864

Sergeeva-Olga [200]

Answer:

70 + 5 + 8/10 + 6/100 + 4/1000

7*10 + 5*1 + 8*1/10 + 6*1/100 + 4*1/1000

5 0

2 years ago

56% of 860 can anyone help please?

Tems11 [23]

The answer is 481.6, because 56% = 0.56, so just multiply 860 by 0.56 and u get 481.6

4 0

2 years ago

Read 2 more answers

Marla has $95.50 in her savings account. She deposits $5 every week. Her mother also deposits $20 into the account every time Ma

vladimir2022 [97]

Part A: Coefficients: 20,5.
Variables: c,w
Constants:95.50

6 0

2 years ago

Using complete square to slove for x in the equation (x+7) (x-9)=25

Brrunno [24]

Answer:

$x_1=1+\sqrt{89}\\\\x_2=1-\sqrt{89}$

Step-by-step explanation:

Apply Distributive property:

$(x+7)(x-9)=25\\\\x^2-9x+7x-63=25$

Add like terms and then add 63 to both sides of the equation:

$x^2-2x-63=25\\\\x^2-2x-63+63=25+63\\\\x^2-2x=88$

Pick the coefficient of the x term, divide it by 2 and square it:

$(\frac{2}{2})^2=1$

Add it to both sides of the equation:

$x^2-2x+1=88+1$

Rewriting the left side as a squared binomial, we get:

$(x-1)^2=89$

Apply square root to both sides:

$\sqrt{(x-1)^2}=\±\sqrt{89}\\\\x-1=\±\sqrt{89}$

And finally we need to add 1 to both sides of the equation. Then we get:

$x-1+1=\±\sqrt{89}+1\\\\x=\±\sqrt{89}+1\\\\\\x_1=1+\sqrt{89}\\\\x_2=1-\sqrt{89}$

8 0

2 years ago