Richard needed to read 5 books for his summer reading assignment. It took him 4 5/8 hours to read the first 2 books. It took him 7 7/8 hours to read the remaining 3 books. How long did it take Richard to read all 5 books?
A. 11 4/8 hours
B. 11 6/8 hours
C. 12 4/8 hours
D. 12 6/8 hours

Answer:

B & C

Step-by-step explanation:

Answer:

neon: 0 percent change    oxide: -2 percent change   copper: 2 percent change   tin: 0 percent change

Step-by-step explanation:

Neon: -10+10=0

Oxide: -10+8=-2

Copper: -27+29=2

Tin: -50+50=0

Hope this helps

Answer:

it is c

Step-by-step explanation:

im is smart

To measure the center, median is the best method.

The value that divides the mathematical numbers or expressions in half is known as the median. The middle data point is known as the median value.

To find the median:

First, organize the data points in ascending order before calculating the median.

The middle number on the list is the median if the number of observations is odd.

Take the value of the (n+1)/2-th term, where n is the total number of observations, to determine this.

Otherwise, the median is the simple average of the middle two figures if the number of observations is even.

Therefore, the median is the best method to find the measure of the center.

To learn more about the median;

https://brainly.com/question/28060453

#SPJ2

Answer:

60% of 20 is 12

Step-by-step explanation:

60 / 100 * 20 = 12

Answer:

409[tex]cm^{2}[/tex]

Step-by-step explanation:

The area of the box wuld be c times d which is 15 times 17 which is 255.

the area of the triangle is [tex]\frac{1}{2}\\[/tex] (base x height) = [tex]\frac{1}{2}\\[/tex](28 x 11) = 14 x 11 = 154

154 + 255 = 409. area of 2D shape's unit is squared, so 409 [tex]cm^{2}[/tex]

Answer:

282

Step-by-step explanation:

282

Answer:

73

Step-by-step explanation:

180-107=73

Answer:

B

Step-by-step explanation:

Answer:

a= 40, b= 50, c= 115

Step-by-step explanation:

a-

There is a theorem for a that gives you the answer:

Vertical angles are congruent

If the vertical angle of a is 40°, then a is also 40°.

That is what the theorem says.

b-

This one is kind of difficult, but let me break down the steps.

Now you already know that a is 40°, and the other angle besides b is a right angle because it shows a square, or 90°.

And now you need to know another law:

Every single triangle's angle adds up to 180°.

Now, this is basically a subtraction problem.

If two of the angles are there, and you know that all of the angles of a triangle add up to 180°, then you just need to know what 90 + 40 + x = 180 is

90 + 40 = 130

130 + x = 180

Subtract 130 from both sides

130 + x = 180

-130        -130

x=50, which means that all of the angles add up to 180°, or following the law.

c-

This one is different as well.

You can very clearly see that it is a straight line that crosses 65° and c.

There is one more law as well:

A straight line is 180°.

If that line that 65 degrees and c sits on is straight, that means that-

65 + x = 180, or

180 - 65 = x

180-65 = 115, and c=115.

It also follows that law; 115 + 65 = 180, which means that it is correct.

Hope this helps :)

-jp524

Answer:

It is 19.7, Simplified

Step-by-step explanation:

For more, add the "Boxes" because, I don't know what you mean by "the boxes"

Answer:

53

Step-by-step explanation:

right cone equation: [tex]V=\pi r^{2} \frac{h}{3}[/tex] where V is volume, r is radius, and h is height.

Answer:

The conclusion is not correct

Step-by-step explanation:

At first it might seem as though the conclusion is correct, seeing as the table has the correct input and is done correctly, but it is the wording of the second sentence next to the table. The question says "you ask 100 randomly chosen high school students..." , Yet the second sentence says "You conclude that 15% of Residents in your town..." Therefore, they aren't relevant to the graph which means the conclusion is wrong

Answer:

y = x + 5

Step-by-step explanation:

Slope (m) formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

[tex]m=\frac{y_2-y_1}{x_2-x_1}\\\\m=\frac{8-4}{3-(-1)}\\\\m=\frac{8-4}{3+1}\\\\m=\frac{4}{4}\\\\m=1[/tex]

y = mx + b

y = 1x + b  OR y = x + b

(-1, 4)

y = x + b

4 = -1 + b

+1   +1

5 = b

y = x + 5

Check your answer using y = x + 5 and (3, 8):

y = x + 5

8 = 3 + 5

8 = 8

This statement is true

Therefore, our final answer is, y = x + 5.

Hope this helps!

Answer:

The mean number of cups of coffer per person was 3.2 cups.

There is nothing in the problem that leads me to believe that the surveys were biased (Was there more to this problem?).

Therefore, we will use all of the values to find the mean. Add up all the values and we have a total sum of 48. Now, divide by 15 to get a mean on 3.2.

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

The person above is wrong

Answer:

first, converting R percent to r a decimal

r = R/100 = 3%/100 = 0.03 per year.

Solving our equation:

A = 6000(1 + (0.03 × 4)) = 6720

A = $6,720.00

The total amount accrued, principal plus interest, from simple interest on a principal of $6,000.00 at a rate of 3% per year for 4 years is $6,720.00.

Answer:

$380

Step-by-step explanation:

If he got 4% interest over the three years then he gained $380 because 9,500 divided by 100 is 95 multiplied by 4 is 380 and thats how much he gained. Total he would now have $9,880.

Answer:

The answer is 2.5

Step-by-step explanation:

See if you divide 5 by 2 then you get 2.5 because basically (5 hours later) so thats how you get 2.5 and I am so smart

Thank you now please give me brainliest

Answer:

no

Step-by-step explanation:

The reason is if you have to add 3/4 + 7/12 you would have to convert it to have the same denominator for both fractions.

Hope this Helps!

Answer:

in the figure, each of the small squares has an area of 1. what is area of the shaded region?

45

Answer:

45

Step-by-step explanation:

Area of each shaded small square = 1

Number of shaded small squares = 45

Area of 45 shaded small squares

= 45 x 1

= 45

Answer:

a=2.8

Step-by-step explanation:

Answer:

(3/4 * 12a) + (3/4 * 8) = 31.2

                               a = 2.8

Step-by-step explanation:

[tex](\frac{3}{4}*-)+(-*8)=-[/tex]

[tex]\frac{3}{4} (12a + 8) = 31.2\\\\\frac{3}{4} (12a)+\frac{3}{4} (8)=31.2\\\\9a+6=31.2\\\\\ \ \ -6 \ \ \ \ \ \ \ \ -6\\\\9a = 25.2\\\\/9 \ \ \ \ \ /9\\\\a=2.8[/tex]

Answer:

(3/4 * 12a) + (3/4 * 8) = 31.2

                               a = 2.8

Hope this helps!

Answer:

1). y = -3 - 7
2). 1/4
3). 1. 117° 2. 63°
4). There are 42 students in the yearbook club and 61 in the drama club
5). 1). both are 45 ° 2). both are 3 units

Step-by-step explanation:

Answer:

See below.

Step-by-step explanation:

6(t+12)=144

6t+72=144

   -72  -72

6t=72

/6  /6

t=12

So, multiplication is the first operation used, and division is the last.

-hope it helps

Answer:

Grocery store is the correct one ...

brainleaist please

Answer:

Yes it is grocery store.

Step-by-step explanation:

Answer:

All

Step-by-step explanation:

Because there are no equations for them so for all we know they all could have infinite solutions.

Hii :)

We know that there are 2 boys, so we should divide 2 by 43. But first..

We need to add the total amount the boys spent together, then subtract,then divide

13+5=18.

The boys spent a total amount of 18 cents.

Next, we need to subtract 18 by 43.

43-18=25.

So, if we were to spilt the 25 evenly, or divide by 2, the answer would be 12.5 cents. But, we need to find what they had to start with.

43 divided by 2 is 21.5. So each boy had 21.5 cents to start with.

Hope this helps~

Learning with natalia

Answer:

The tax would be $ 5.54

Step-by-step explanation:

You would pay $5.54

63×8.8% or 63×0.088

=5.54