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3 years ago

If 5 worksites take 31.5 hours to prepare, how long will it take to prepare 13 worksites

Mathematics

2 answers:

kotegsom [21]3 years ago

7 0

Answer:

81.9 hours.

Step-by-step explanation:

5 work sites take 31.5 hours to prepare, so

1 work sites take 31.5 / 5 hours to prepare, and

13 work sites take . (31.5 * 13) / 5 hours to prepare

= 409.5 / 5

= 81.9 hours.

Klio2033 [76]3 years ago

6 0

31.5%5=6.3
6.3*13= 81.0

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Could someone explain things like radicals with variables that are raised to powers. plz,

Setler79 [48]

When radicals (square roots) include variables, they are still simplified the same way. We just have to work with variables as well as numbers

1) Factor the radicand (the numbers/variables inside the square root). Factor the number into its prime factors and expand the variable(s).

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2 years ago

-25+t=-44 solve using addition principle. The solution is t=

love history [14]

Explanation:

First, add by 25 both sides of an equation.

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Then, simplify by equation and add/subtract by the numbers.

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*The answer must be have a negative sign.

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2 years ago

Read 2 more answers

Find the distance between the points given.

Maru [420]

Use the distance formula

$d = \sqrt {\left( {x_1 - x_2 } \right)^2 + \left( {y_1 - y_2 } \right)^2$

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$d = \sqrt {\left( {-4} \right)^2 + \left( {-3} \right)^2$

$\sqrt{16 + 9}$

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2 years ago

Paco bought 3 CDs that cost d dollars each and a pack of gum for C cents. Write an expression for the total cost of his purchase

cupoosta [38]

Answer:

The correct option is A) $3d+C$ .

Step-by-step explanation:

Consider the provided information.

Paco bought 3 CDs that cost d dollars each.

Let d is the cost of each CDs.

The cost of 3 CDs will be 3 times of d.

This can be written as:

$3d$

He bought a pack of gum for C cent. Thus, we can say that the cost of pack of gum is C.

Now add the cost of gum in above expression.

$3d+C$

Hence, the required expression is $3d+C$ .

Thus, the correct option is A) $3d+C$ .

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3 years ago

Ashley is making $500 a week at her job. she receives a 20% pay rise. a year later she takes a 5% pay cut. how much does she mak

aleksandrvk [35]

Answer:

Ashley is making $570 a week

Step-by-step explanation:

500 + 20%= 600

600-5% =570

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3 years ago