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Softa [21]
4 years ago
9

Solve: 10(1 – 2y) = –5(2y – 1)

Mathematics
1 answer:
FinnZ [79.3K]4 years ago
3 0

Answer:

Y= 1/-2

Step-by-step explanation:

10(1-2y)=5(2y-1)

10-20y= -10y+5

10+5= -20y-10y

15= -30y

y= 15/-30 or 1/-2

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Multiply and simplify the following expression -4√15 x(-√3)
larisa [96]

Answer:

\large\boxed{12\sqrt5}

Step-by-step explanation:

\text{Use}\ \sqrt{ab}=\sqrt{a}\cdot\sqrt{b}\\-----------------\\\\-4\sqrt{15}\cdot\left(-\sqrt3\right)=4\sqrt{(15)(3)}=4\sqrt{5\cdot3\cdot3}=4\sqrt5\cdot\sqrt9\\\\=4\sqrt5\cdot3=12\sqrt5

6 0
3 years ago
What is the perimeter of a square with a dimensions of (3x^2 +1)<br><br>Please help I need it ASAP.​
chubhunter [2.5K]

Answer:

12x^2+4

Step-by-step explanation:

4(3x^2+1)

3 0
3 years ago
Find 1/9 as many as 3 divided by 5
kari74 [83]
1/9 times 3/1 = 1/3. Now divide 1/3 by 5 or multiply by 1/5 and you get 1/15. There's your answer
7 0
3 years ago
Use the present value formula to determine the amount to be invested now, or the present value needed.
Vladimir79 [104]

Answer:

The value needed now is $102,296.60

Step-by-step explanation:

Here, we want to calculate the present value needed.

We shall be using the formula for compound interest here

Mathematically;

A = I(1 + r/n)^nt

According to the question;

I is the initial amount which is what we want to calculate

A is the accumulated amount with interest = 140,000

r is the interest rate = 8% = 8/100 = 0.08

n is the number of times interest is compounded which is 4, since it is quarterly

t is the number of years = 2

Substituting these values, we have ;

140,000 = I(1 + 0.08/2)^(4 * 2)

140,000 = I(1.04)^8

I = 140,000/(1.04)^8

I = 102,296.62870027774

Which is I = $102,296.60 to the nearest cent

8 0
3 years ago
Emma tried to write and equation of the linear table but made an error
Lady bird [3.3K]

Answer:

The correct answer is (-3,-1) (0,5) (3,11)

Step-by-step explanation:

Emma's mistake was flipping her y-values, 11 matches with 3, not -3. The most likely reason she did this was accidentally making the slope negative. The table she wrote fits the line y=-2x+5. If you plug in -3 into the correct equation you will get -1 and 3 will get you 11.

4 0
3 years ago
Read 2 more answers
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