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Alex Ar [27]
2 years ago
10

- A board was 24 3/8 inches long. A worker cut it into

Mathematics
1 answer:
Mariana [72]2 years ago
8 0

To make everything easier, it's best to turn the mixed numbers into improper fractions.

24 * 8 = 192 + 3/8 = 195/8

4 * 8 = 32 + 7/8 = 39/8

The question asks how many 39/8-inch long pieces the worker cut from a 195/8-inch long board, meaning we have to divide.

195 / 39 = 5

The worker cut the board into 5 pieces.

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1. y = x2 + 8x + 15<br> Find the zeros of the function by rewriting the function in intercept form
lubasha [3.4K]

The zeros of given function y=x^{2}+8 x+15 is – 5 and – 3

<u>Solution:</u>

\text { Given, equation is } y=x^{2}+8 x+15

We have to find the zeros of the function by rewriting the function in intercept form.

By using intercept form, we can put value of y as  to obtain zeros of function

We know that, intercept form of above equation is x^{2}+8 x+15=0

\text { Splitting } 8 x \text { as }(5+3) x \text { and } 15 \text { as } 5 \times 3

\begin{array}{l}{\rightarrow x^{2}+(5+3) x+5 \times 3=0} \\\\ {\rightarrow x^{2}+5 x+3 x+5 \times 3=0}\end{array}

Taking “x” as common from first two terms and “3” as common from last two terms

x (x + 5) + 3(x + 5) = 0

(x + 5)(x + 3) = 0

Equating to 0 we get,

x + 5 = 0 or x + 3 = 0

x = - 5 or – 3

Hence, the zeroes of the given function are – 5 and – 3

5 0
3 years ago
Derrick and Sam need 10 pounds of colored gravel for the bottom of their new fish tank. Derrick has 2 pounds of purple gravel an
Sunny_sXe [5.5K]

Answer:

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3 years ago
The skating rink rented 218 pairs of skates during the month of April and 3 times that many in May. How many pairs of skates did
Marrrta [24]

Answer: Total number of pairs =872

Step-by-step explanation:

Since we have given that

Number of pairs of  skates during the month of April =218

Number of pairs of skates during the month of May =3 × 218=654

As we know that total means altogether in which we perform the additive operation.

Total pairs of skates the skating rent during April and May = 218+654=872

∴ Total number of pairs =872

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