Ask question

Ask question

All categories

3 years ago

13

Cheatan wants to make a necklace with 50 beads. He knows that 12 beads take up 5 inches of string, but the store only sells stri

ng by the centimeter. How many centimeters should he buy
?

1 answer:

Karolina [17]3 years ago

6 0

Answer:

50.8

Step-by-step explanation:

You might be interested in

A customer decides to build a fence around the backyard. The yard is rectangular, and with the house an equal distance from both

DerKrebs [107]

Answer:

D). 290 feet

Step-by-step explanation:

Length of the yard = 65 feet

Width of the yard = 80feet

The Perimeter of the yard = 2(l + b)

= 2 * (65 + 80)

= 2 * 145

= 290 feet

∵ Fencing required = 290 feet

Thus, <u>option A</u> is the correct answer.

4 0

3 years ago

If 7 - 2x = -27, what is the value of 3x + 5?

taurus [48]

Answer: 56

Step-by-step explanation:

7-2x=-27

-2x=-34

x=17

so 3x+5=3(17)+5=56

3 0

2 years ago

700/200 in a terminating decimal

Aneli [31]

700/200=7/2 because devide by 100 and then=3 1/2 and half is .5 so= 3.5

8 0

3 years ago

Solve for x in the equation.

labwork [276]

Answer:

The solution is $\displaystyle x=1\pm \sqrt{47}$ . Fourth option

Explanation:

Solve for x:

$2x^2+3x-7=x^2+5x+39$

Move all the terms from the right to the left side of the equation, a zero in the right side:

$2x^2+3x-7-x^2-5x-39=0$

Join all like terms:

$x^2-2x-46=0$

The general form of the quadratic equation is:

$ax^2+bx+c=0$

Solve the quadratic equation by using the formula:

$\displaystyle x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

In our equation: a=1, b=-2, c=-46

Substituting into the formula:

$\displaystyle x=\frac{-(-2)\pm \sqrt{(-2)^2-4(1)(-46)}}{2(1)}$

$\displaystyle x=\frac{2\pm \sqrt{4+184}}{2}$

$\displaystyle x=\frac{2\pm \sqrt{188}}{2}$

Since 188=4*47

$\displaystyle x=\frac{2\pm \sqrt{4*47}}{2}$

Take the square root of 4:

$\displaystyle x=\frac{2\pm 2\sqrt{47}}{2}$

Divide by 2:

$\displaystyle x=1\pm \sqrt{47}$

First option: Incorrect. The answer does not match

Second option: Incorrect. The answer does not match

Third option: Incorrect. The answer does not match

Fourth option: Correct. The answer matches exactly this option

8 0

2 years ago

When Royal looked out at the Walmart parking lot, he noticed that for every 1 Lamborghini, there were 5 other types of vehicles.

Rufina [12.5K]

34.8

i dint understand it is this for school?

7 0

3 years ago