Nadia's father bought a new camera,lens, and case. He rounded the cost of all the items to estimate how much money he would need. He rounded the cost of the camera to $800,the cost of the lens to $500, and the cost of the case to $200. The actual cost of all three was 1,489. What could the actual cost of all three items be? Show your work answer for camera,lens,case

Answers

Answer 1

Answer: 799, 499, and 191. (I got it off the textbook online.)

Answer 2

Answer:

Final answer:

The actual costs of camera, lens, and case could approximately be $795, $495, and $199 respectively, summing up to the total actual cost of $1,489.

Explanation:

In the question, Nadia's father estimated the cost of her camera, lens, and case to be $800, $500, and $200 respectively. However, the actual total cost of these three items was $1,489. Now, if he rounded the cost of each item, the actual cost of each item could be a bit less or more than the estimated costs. When you sum up the rounded cost of these three items ($800 + $500 + $200), it equals $1,500 which is $11 more than the actual total cost. The overestimation implies that the actual total cost ($1,489) might have been rounded up for one or more of the items. Therefore the actual prices could be something like: $795 for the camera, $495 for the lens, and $199 for the case. Summing these up will give you the actual total cost of $1,489.

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Start at 125 create a pattern that subtracts 6 from each number
X ^3 + 6x^2 +12x+8 ÷(x+2)
Which arrangement shows 27/5, 5.36, 5 3/5, and 33/6 in order from least to greatest?A. 5.36, 27/5 , 5 3/5 , 33/6B. 27/5,5.36, 33/6, 5 3/5C.5 3/5, 5.36, 27/5, 33/6D.5.36, 27/5, 33/6, 5 3/5
If i got 68 correct on my math test and the total is 85 what is the score?

5-2x=-4x-7 ???????????????????????

Answers

My goodness ! What are you going to do when you
really need a question mark and you don't have any
because you used them all up ?

You said 5 - 2x = -4x - 7

Add 4x to each side:    5 + 2x =      -7

Subtract 5 from each side:    2x =   -12

Divide each side by 2 :    x =   -6

+2x on both sides
5=-2x-7
+7
12=-2x
/-2
-6=x

I need an answer and explanation. A student spends the same amount each week for bus fare. In 5 weeks, he spends $115. Which equation shows this relationship? Let x = the number of weeks.a. y=3.22x
b. y=5x
c. y=23x
d. y=115x

Answers

Answer:c.y=23x

because A student spends the same amount each week for bus fare => in each week, he spents: 115 : 5 = 23 ($)

with x = the number of weeks, the equation shows this relationship is y = 23x

Step-by-step explanation:

Answer:

Step-by-step explanation:

What is the total cost of 1.9 cubic meters of soil if it sells for $40

Answers

Answer:

Step-by-step explanation:

Total cost = 1.9* 40 = 76.0 = $76

When unit rate is given,multiply.

Final answer:

The total cost of 1.9 cubic meters of soil is $76. This is calculated by multiplying the amount of soil bought (1.9 cubic meters) by the cost of one cubic meter of soil ($40).

Explanation:

To calculate the total cost, we have to multiply the amount of soil bought (in cubic meter) by the cost of one cubic meter of soil. Here, the student is buying 1.9 cubic meters of soil and the cost of one cubic meter of soil is $40.

So, Total cost = amount of soil * cost of one cubic meter of soil
= 1.9 * 40
= $76

Therefore, the total cost of 1.9 cubic meter of soil is "$76."

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I have 2 questions to ask 1 is divide 180 degrees in a ratio of 4,5 and 9the other one is divide 42 in a ratio 1 2 and

Answers

Here's how to do dividing in a certain ratio:

-- You want to divide up the whole thing in the ratio of
4 parts, 5 parts, and 9 parts.

-- How many parts all together ? (4 + 5 + 9) = 18 parts all together.

-- The whole thing is 180, and that's 18 total parts.
So each part is (180/18) = 10 degrees.

4 parts = (4 x 10) = 40
5 parts = (5 x 10) = 50
9 parts = (9 x 10) = 90.

Check: (40 + 50 + 90) = 180 . yay!

==============================

For the second one, I think there are some words missing.

One circle has a diameter of 6 inches. A second, larger circle has a diameter that is four times the diameter of the first circle. What is the ratio of the area of the smaller circle to the larger circle?

Answers

The area of a circle:
$A=\pi r^2$
r - the radius, which is equal to half the diameter d

The first circle:
$d_1=6 \nr_1=(6)/(2) = 3 \nA_1=\pi * 3^2=9\pi$

The second circle:
the second circle has a diameter that is four times the diameter of the first circle.
$d_2=6 * 4=24 \nr_2=(24)/(2)=12 \nA_2=\pi * 12^2 = 144\pi$

The ratio of the area of the smaller cirlce to the area of the larger circle:
$(A_1)/(A_2)=(9 \pi)/(144 \pi)=(9)/(144)=(9 / 9)/(144 / 9)=(1)/(16)$

The ratio is 1:16.

Jeff worked 4 2/3 hours in the morning and 3 3/4 hours in the afternoon. How many total hours did he work today?7 5/7 hours
7 5/12 hours
8 5/12 hours
8 1/2 hours

Answers

Answer:If you would like to know how many total hours did Jeff work today, you can calculate this using the following steps:

4 2/3 hours in the morning + 3 3/4 hours in the afternoon = 4 2/3 + 3 3/4 = 14/3 + 15/4 = 56/12 + 45/12 = (56 + 45) / 12 = 101/12 = 8 5/12 hours

Jeff worked 8 5/12 hours in total.

Step-by-step explanation:

8 1/2 hours
Just use a calculator

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PLEASE HELP I GIVE THANKS

Which expression is equivalent to (82)–4?