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3 years ago

Some Insight: This is a Unit Rate question. Please Answer soon as possible.

Mathematics

1 answer:

marysya [2.9K]3 years ago

5 0

Answer: C

Step-by-step explanation:

Because it only shows a single price and we don’t know what that price is for.

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Food bill: $36 Tip: 20% Sales tax (on food only) 6%

olasank [31]

Answer: To figure out the tip, you need to find 20% of $52.60.

0.2×52.6=10.52

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

2. Which equation does not represent the identity property of multiplication? 55/55x 3= 17 x 1= 9/1 x 4 11/11 x4

melisa1 [442]

Answer:

Step-by-step explanation:

$\dfrac{9}{1}*4=9*4$ which does not represent the identity property of multiplication.

Rest all represents the identity property of multiplication.

$\dfrac{55}{55}*3 = 1*3 = 3\\\\\\17*1=17\\\\\\\dfrac{11}{11}*4=1*4=4$

5 0

2 years ago

the average annual cost of heating a home woth solar energy is $200 with an inital cost of $9000. During the month of may, the s

Leona [35]

Answer: Discounted function will be

$C(x)=6750+150t$

Step-by-step explanation:

Since we have given that

Initial cost of solar energy = $9000

Average annual cost of heating a home with solar energy = $200

Rate of discount he received on the total cost = 25%

Let the number of year will be t

According to question, we need to write a discounted cost as a function of number of years.

So, our function becomes,

$C(x)=\frac{100-25}{100}(9000+200t)\\\\C(x)=\frac{75}{100}(9000+200t)\\\\C(x)=0.75(9000+200t)\\\\C(x)=9000\times 0.75+200\times 0.75t\\\\C(x)=6750+150t$

Hence, discounted function will be

$C(x)=6750+150t$

8 0

4 years ago

A rock is thrown from the top of a tall building.The distance in feet between the rock and the ground t seconds after thrown is

marusya05 [52]

Answer:

0.448 seconds

Step-by-step explanation:

d = -16t² -4t + 412

find t when d = 407

substituting d = 407 into the equation:

407 = -16t² -4t + 412 (subtract 407 from both sides)

-16t² -4t + 412 - 407 = 0

-16t² -4t + 5 = 0 (multiply both sides by -1)

16t² + 4t - 5 = 0

solving using your method of choice (i.e completing the square or using the quadratic equation), you will end up with

t = (-1/8) (1 + √21)= -0.70 seconds (not possible because time cannot be negative)

t = (-1/8) (1 -√21) = 0.448 seconds (answer)

4 0

4 years ago

What line will most likely have a slope of 10

Romashka [77]

Answer:

first one

Step-by-step explanation:

3 0

3 years ago