All categories

2 years ago

If 3 pieces of candy cost $ 2.10, how much would four pieces cost?

Mathematics

2 answers:

OleMash [197]2 years ago

8 0

Answer:

2.80

Step-by-step explanation:

divided 2.10 by 3 then times that answer by 4

snow_tiger [21]2 years ago

4 0

Answer:

¢70

Step-by-step explanation:

210 divided by 3 equals 7

You might be interested in

What is 2x+19 but dont use factors

blondinia [14]

Answer:

Step-by-step explanation:

If you are solving for the equation 2x + 19 = 0, the steps are as follows.

2x+19=0

2x = - 19 (Move the 19 over to the other side)

x = - 9 1/2 (divide both sides by 2 to get x by itself.)

7 0

2 years ago

The lines graphed below are parallel the slope of the red line is 3 what is the slope of the green line

Veseljchak [2.6K]

Answer:

$\large\boxed{m=3}$

Step-by-step explanation:

$\text{Let}\ k:y=m_1x+b_1\ \text{and}\ l:y=m_2x+b_2,\ \text{then}\\\\l\ \parallel\ k\iff m_1=m_2\\\\l\ \perp\ k\iff m_1m_2=-1\to m_2=-\dfrac{1}{m_1}\\--------------------------\\\\\text{We have the slope of the red line}\ m_1=3.\\\\\text{Then the slope of the green line}\ m_2=3$

8 0

2 years ago

Y varies directly as X , and Y=1.2 when X=1.6.Solve for points.

solmaris [256]

Answer:

0.75

Step-by-step explanation:

We do y/x to find out the Unit Rate.

So 1.2/1.6 = 0.75

4 0

2 years ago

Read 2 more answers

Which equation could be used to calculate the sum of the geometric series?

Greeley [361]

$\dfrac{1}{3}+\dfrac{2}{9}+\dfrac{4}{27}+\dfrac{8}{81}+\dfrac{16}{243} = \\ \\\\ = \sum\limits_{k=1}^{5}\dfrac{2^{k-1}}{3^k} = \sum\limits_{k=1}^{5}\dfrac{2^{k}}{2\cdot 3^k} = \dfrac{1}{2}\cdot \sum\limits_{k=1}^{5}\dfrac{2^{k}}{3^k} = \\ \\\\ = \dfrac{1}{2}\cdot \sum\limits_{k=1}^{5}\Big(\dfrac{2}{3}\Big)^k = \dfrac{1}{2}\cdot \left[\Big(\dfrac{2}{3}\Big)^1+\Big(\dfrac{2}{3}\Big)^2+...+\Big(\dfrac{2}{3}\Big)^5\right] =$

$= \dfrac{1}{2}\cdot \dfrac{\dfrac{2}{3}\cdot\left[\Big(\dfrac{2}{3}\Big)^5-1\right]}{\dfrac{2}{3}-1} =-\Big(\dfrac{2}{3}\Big)^{5}+1 = \dfrac{-2^5+3^5}{3^5} = \boxed{\dfrac{211}{243}}$

$\text{I used the geometric series formula for sum: }S_n = \dfrac{b_1\cdot (q^n - 1)}{q-1}$

3 0

2 years ago

Write the exponent for 3 x 3 x 3 x 3 x 3 (shift 6 to make the ^ sign). *

Dmitry [639]

Answer:

Step-by-step explanation:

The exponent is just the amount of times you multiply a number by itself. So if you're multiplying three five times, the power would be 5.

4 0

2 years ago