50 points because this one is difficult! Please help me!!! I don't understand! I will give brainliest and 5 stars. :) Please no links or random answers. I really need help. Thanks to anyone who gives me an answer. :D - Luna


Mr. Martin is giving a math test next period. The test, which is worth 100 points, has 35 problems. Each problem is worth either 5 points or 2 points. How can you set up a system of equations to find how many problems of each point value are on the test?

Let x = the number of questions worth 5 points.

Let y = the number of questions worth 2 points.

Answer:

108 square feet

Step-by-step explanation:

First you want to break up the "L" into two parts. These parts can be seens as a and b. You need to find out the length on the left hand side, and half of it is 6ft as seen, so if half of it is 6ft, then you need to find the other half, which is obviously 6ft. 6+6=12, and to find the area of the thinner rectangle, multiply 2*24=48. That would be the area of section a. Section b is the bottom section and what you want to do is multiply 10*6 because this is how you would find the area of section b, which would be 60. 60+48=108. I know I was not very descriptive but I still hope this somewhat helps. I also might be wrong because of the fact that it says surface area despite the fact that this shape is 2D.

The surface area, in square feet, of this wooden platform is 84 ft².

The area is the area occupied by a two-dimensional flat surface. It has a square unit of measurement. The surface area of a three-dimensional object is the space taken up by its outer surface.

We have L figured shape which can break as two rectangle.

So, the Area of rectangle 1:

= l w

= 6 x 2

= 12 square feet

and, Area of rectangle 2:

= l w

= 12 x6

= 72 square feet

Thus, the surface area of figure

= 12 + 72

= 84 square feet

Learn more about Surface area here:

https://brainly.com/question/29298005

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Answer:

16

Step-by-step explanation:

Answer:

First triangle: 10 units

Second triangle: 6 units

Step-by-step explanation:

First: Area if triangle is half of base times height, 1/2(4) * 5 = 2*5 = 10

Second: 1/2(4) * 3 = 2*3 = 6

Answer:

B

Step-by-step explanation:

if two sides are equal but one side is different it is called an isosceles triangle.

Answer:

Step-by-step explanation:

By definition, all radii of a circle are congruent, since all the points on a circle are the same distance from the center, and the radii of a circle have one endpoint on the circle and one at the center. ... The length of the diameter is twice that of the radius. Therefore, all diameters of a circle are congruent, too.

Answer: y>7-15x

Slope-Intercept Form: Y=MX+B

Eliminate 15x to get only y on one side.

15x-15x=0

y>7-15x

Answer:

A

Step-by-step explanation:

B is 180

C looks like 30-ish

D looks like 270

so A is the only one that looks to be 45

Answer:

C

Step-by-step explanation:

45/360 covers about 1/8 of the entire degress of a circle, this means the image that corresponse with be on the smaller side.

a- this seems closer to 1/4 and would not be the best match

b- this covers half, so this is much to large to correspond

c- this is the closest eyballing it, as it looks small enough to cover 1/8th as well as be properly notated

d- this is smaller and could be correct except the notation on it shows that it is going around the outside (so 360- that angle)

I hope this helps!

1.4 is what percent of 1.12=125

Step-by-step explanation:

125

Answer:

1.4 is 125% of 1.12

Step-by-step explanation:

1. We assume, that the number 1.12 is 100% - because it's the output value of the task.

2. We assume, that x is the value we are looking for.

3. If 100% equals 1.12, so we can write it down as 100%=1.12.

4. We know, that x% equals 1.4 of the output value, so we can write it down as x%=1.4.

5. Now we have two simple equations:

1) 100%=1.12

2) x%=1.4

where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:

100%/x%=1.12/1.4

6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 1.4 is what percent of 1.12

100%/x%=1.12/1.4

(100/x)*x=(1.12/1.4)*x       - we multiply both sides of the equation by x

100=0.8*x       - we divide both sides of the equation by (0.8) to get x

100/0.8=x

125=x

x=125

now we have:

1.4 is 125% of 1.12

Answer:

14 and 23

Step-by-step explanation:

Answer:

its actuly 12

Step-by-step explanation:

16x12=192

The number of revolutions it takes the wheel to travel about 192 inches is 4. Therefore, option B is the correct answer.

The circumference of a circle is the perimeter of the circle. It is the total length of the boundary of the circle. The circumference of a circle is the product of the constant π and the diameter of the circle.

Given that, the diameter of a bicycle wheel is 16 inches.

We know that, the radius of a circle is diameter/2

Here, radius of bicycle wheel =16/2 =8 inches

As we know, the circumference of a circle is 2πr

Now, circumference of bicycle wheel is

2×3.14×8

= 50.24 feet

The wheel to travel about 192 inches

Number of revolutions =192/50.24

= 3.82

≈ 4

The number of revolutions are 4. Therefore, option B is the correct answer.

Learn more about the circumference here:

brainly.com/question/28757341.

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Answer:

Step-by-step explanation:

bro it is or the answer is c: 7/5 x 1/2

Answer:

C

Step-by-step explanation:

Step-by-step explanation:

[tex]0.4 \div 0.2 = 2 \\✓ = option \: 3[/tex]

Answer:

The model that correctly shows the problem 0.4 divided by 0.2 is option 3.

Step-by-step explanation:

Option 3 has 4 out of 10 rowS shaded in, which you can infer immediately is the correct answer. Since 10 rows represent 1 whole, that means that 4 rows shaded in are 0.4. In option 3, the four rows are split by blue lines and have 2 rows, or 0.2, in each group, so option 3 matches the problem 0.4 divided by 0.2.

Answer:

its 72.50

Step-by-step explanation:

Answer:

The 4th one.

Step-by-step explanation:

As you know, the length in cm for each is 4, 6, 4, 3, 5, 6, 5, 4, 3, and 6. So, you must now count how many times 4 is listed, which is 3. Now, you will look at each chart for 3 x's above the number 4. You have now eliminated the middle two. Next, count how many 3's there are, which is 2. Both have those, so eliminating other choices is a no-go. Now, look at how many 5's you have, which is 2. Look at your charts... again, no choice ca be marked-off. Finally, look at how many 6's there are, which is 3. So, look at your last options and find which one has 3 total x's above the 6. And there you go, D.

Hope this helps! :)

Answer:

blue : 3/8 and odd number = 3/6

Step-by-step explanation:

there are 8 rolls and 3 blues so 3/8. and there are 3 odd numbers out of 6 so 3/6

Hope you liked it

Answer:

13/14

Step-by-step explanation:

I am not sure what the question is asking but I am pretty sure that it is 13/14 becuase I added 3/6+3/7 and I got 13/14. Hope it Helps! :D

Answer:

measure of each pink central angle is 40°

i.e a=40°

Answer:

They both have one base

Answer:

A is answer

Step-by-step explanation:

Answer:

Figure b

Step-by-step explanation:

A translation is when a shape hoves to different coordinates but doesn't change size.    

Answer:

n=90

Step-by-step explanation:

As I think it is easy to answer the volume of prism I will also calculate no of small prism that can fit inside the larger one  

so volume = length * width * height

volume of larger prism

vp=45/4 ft^3 =11.25

volume of small cubes

vs=1/2*1/2*1/2

vs=0.125 ft^3

now numbers of cube that can fit

n=vp/vs

n= 11.25/.125

n=90

so 90 smaller cubes will completely fill in the prism

Answer:

11.25 [tex]ft^3[/tex]

Step-by-step explanation:

2.5 x 3 x 1.5 = 11.25 [tex]ft^3[/tex]

Answer:

18

Step-by-step explanation:

Amy can invite 18 people (including herself). $200-$50=$150. $150÷8=18.75. You can't have 18.75 people so you round it down to 18. Hope this helps!

Answer: 18 people including herself

Step-by-step explanation: Take $200-$50=$150

now divide 150 by 8 which is 18.75 you obviously can't round up so you round down to just 18 and thats your answer. she can have 18 people there including herself

Answer:

900 cubic mm

Step-by-step explanation:

You find the volume of a pyramid by using base x height/3. Since the dimensions of the prism and pyramid ate the same, and prisms are just base x height, you multiply the pyramid's area by 3.

Answer: C

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

A cylinder is made up of two parallel congruent circles and a rectangle which base is the circumference of the circle.

Answer:you have to devide and find the cordinates of The numbers

Step-by-step explanation:

Answer:

A.) 60

B.) Fernada

Step-by-step explanation:

A.) you would add up all the friends records (20 + 17 = 37, 37+ 23 = 60).

B.) you would see if anybody was close to 36 and Fernada counted 23 and they would be the closes.