Mathematics Middle School

Evaluate 2a+2b when a=10.8 and b=8.3

Answers

Answer 1

2(10.8) = 21.6
2(8.3) = 16.6
21.6 + 16.6
Answer: 38.2

Answer 2

The answer is 38.2

2* 10.8 + 2* 10.8

Related Questions

Which polygon is a hexagon?
A 5-sided figure.
A 6-sided figure.
An 8-sided figure.
A 7-sided figure.

Answers

A 6-sided figure i belive

The requried 6-sided figure polygon is a hexagon. Option B is correct.

What is a polygon?

Polygon is defined as a geometric shape that is composed of 3 or more sides these sides are equal in length, and an equal measure of angle at the vertex,

Examples of polygons, equilateral triangles, squares, pentagons, etc

here,
in the question, we are asked to determine the hexagon among the options,
A 5-sided figure. = pentagon

A 6-sided figure = hexagon

An 8-sided figure. = octagon

A 7-sided figure. = heptagon

Thus, the requried 6-sided figure polygon is a hexagon. Option B is correct.

Learn more about polygon here:
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hii!! I need help with these ty sm!

Answers

Answer:

b and j

Step-by-step explanation:

(1)- B
(2)- J
Hope this helps!

Suppose Year 0 = 2010

1) What is the slope of this trendline? Explain the significance of the slope in the context of the model. 2) What is the y-intercept of this trendline? Explain the significance of the y-intercept in the context of the model. 3) Predict what the outcome will be 50 years from now. Is making a prediction 50 years into the future appropriate? Why or why not?

Answers

sorry i can’t help with the 50 years one or the questions to slope and y-intercept but the slope is 5 and the y-int is (0,50)

help answer all these pls

if so u get brainlyest
PLS HURRY

Answers

need more than 5 points for all that wth

first one is D second is B i think

OMGGG PLS HELP LAST QUESTION DUE RN!!!!!
IM IN CLASSSS OMG

Answers

The answer on top is -21 the one on the bottom is 32

Which angle is adjacent to Angle D F E?
Line A F E is horizontal. Lines B, C, and D come out of point F.
Angle A F B
Angle A F C
Angle B F D
Angle B F C

Answers

Answer:

angle A F C

Step-by-step explanation:

and B F C

Answer:

i think its angle A F C i dont know the others

Step-by-step explanation:

Kara works at a fine jewelry store and earns commission on her total sales for the week. Her weekly paycheck was in the amount of $7000, including her salary of $1000. Her sales for the week totaled $50,000. Express her rate of commission as a percent, rounded to the nearest whole number.

Answers

Her total paycheck minus her salary = the commission amount
So
6500 - 1000 = 5500
So....her commission as a percentage of sales = 5500/ 45000 = about 12.2%

simplify – w + 1 – (–8w)

Answers

Answer:

7w + 1

hope it helped. :)

Answer: =the answer is 7w+1

Step-by-step explanation:

that's the answer you subtract 1-8 give you 7 and you put the w as this 7w and you just pit the +1 and that's it 7w+1

PLEASE HELP ME ( I ADDED A PHOTO)

Answers

Answer:

Which one do you need help with

Step-by-step explanation:

Im not just taking points I will still help you in the comments.

Answer:

um 32-28 so 12.5 i think for the first one the second one is 25%

i am so sorry if i get it wrong

Step-by-step explanation:

pleaase. please please help i will mark brainliest
Factory owners sought the cheapest labor in their factories in order to...
Group of answer choices

A.) maximize profits.

B.) give jobs to more children.

C.) use assembly lines.

D.)help women who lost their husbands

Answers

Answer:

Step-by-step explanation:

What is the difference between 5/6 − 5/12? Use the fraction strip to help.
A. 0
B. 5/12
C. 7/12
D. 5/6

Answers

Answer:

Step-by-step explanation:

Answer:

the answer is b. 5/12 quick math

I need help with a math question but apparently everyone is dead today..

the problem is down there and answer choices

A.

102 cm2

B.

76 cm2

C.

96 cm2

D.

108 cm2

Answers

The answer is D. I’m assuming this is surface area so here’s my explanation:) ok so the area of the triangle is 6 (4x3 divided by 2) and when you add the other triangle that’s 12. Ok so we have 12 so far. Then the area of the bottom rectangle is 24 (3x8). Then the area of the side rectangle is 32 (4x8). THEN the top rectangle’s area is 40 (8x5). When you add the numbers up (12+24+32+40) you get 108! And of course dont forget the cm2. ( centimeters squared ). :) I hope this helps

A business named Beyond Boxes is considering adding a box in the shape of a triangular prism as shown. How much cardboard will be needed to make this design?
A.96 cm2

B.102 cm2

C.108 cm2

D.76 cm2

Answers

Answer:

120

Step-by-step explanation:

108 cm² cardboard will be needed to make this design.

As per the given data:

The shape of the box is a triangular prism, and all the dimensions are given in the diagram.

A polyhedron with two triangular bases and three rectangular sides is referred to as a triangular prism. It is a three-dimensional form with two base faces, three side faces, and connections between them at the edges.

To find the cardboard that will be needed to make this design:

= Total surface area of the triangular prism.

= Area of 2 triangles + area of 3 rectangles

= 2 × ½ × 3 × 4 + 4 × 8 + 5 × 8 + 8 × 3

= 12 + 32 + 40 + 24

= 108 cm²

Hence, 108 cm² cardboard will be needed to make this design.

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The diagram shows a portion of a wooden support for the roof of a house. A construction worker says that ∠BDA measures 30° more than ∠DAC. Is the worker correct? Use angle relationships and equations to justify your answer.

Answers

Answer:

no because if angle ADC is 108 angle BDA would be 72

Step-by-step explanation:

because if angle ADC is 108 angle BDA would be 72

Remember to simplify your fraction***

Answers

Answer:

1. 2/6 or 1/3

2. 4/6 or 2/3

3. 3/6 or 1/2

Step-by-step explanation:

I hope this helps I did the ones I knew

1. 1/3
2. 2/3
3. 1/2
hope this helps!!

MARKING BRAINLIEST~
Lin sold 4 more shirts than Greg. Fran sold 3 times as many shirts as Lin. In total, the three sold 51 shirts. Which EQUATION could you solve to find the number of shirts Greg sold?
a
3g = 51
b
3 + g = 51
c
8 + 5g = 51
d
16 + 5g =51

Answers

Answer:

Step-by-step explanation:

Answer:

16 + 5g =51

Step-by-step explanation:

Hope this helps! :D

Please mark me brainliest I need one more!!

Sally ordered 8 movies online with a $3.95 shipping charge. The total was $75.55. If each movie cost the same amount, how much did she pay for each movie?

What is the equation?
3.95m + 8 = 75.55
8 + 3.95 = 75.55
3.95m = 75.55
8m + 3.95 = 75.55

Answers

Answer:

8m + 3.95 = 75.55

the fourth one: 8m+3.95=75.55

terry had his car repaired at ace auto, h was charged $50 per hour of labor plus $150 for parts his total bill for the repair before tax was $375. how many hours was terry charged for?
PLZ HELP MEEEEE

Answers

Answer:

4 hour and 30 min

Step-by-step explanation:

hope it helps

Answer:

4 hour and 30 min

Step-by-step explanation:

I really need help with this please :o

Answers

I believe it is B or D

The two angles at the right have a combined measure of 90*. Write an equation and then solve to find the measure of angle x.

___ + ___ = ___

Answers

Answer:

the answer if you add that is there below

90+90=180

Answer:

Yes it would be 90+90=180

Step-by-step explanation:

HELP ME WITH THIS ONE PROBLEM (2/2)

Answers

Equal then Together then just solve so x is 15

Can you help me please?

Answers

Make sure that you are looking at the right boxes

Answer:

Step-by-step explanation:

P1(0, -4)

m=1/2(1 up and 2 right)

plz I really this rigth now plz help me

Answers

Answer: because distance is always positive

Step-by-step explanation:

Which set of number shows a proportional relationship?

Answers

Answer:

Step-by-step explanation:

The answer is D because they are proportional

50 POINTS

Use the figure. Assume that lines JL and MP are parallel.
If mImage of an angle symbol4 = 75°, then what is mImage of an angle symbol8?
A. 105°
B. 75°
C. 175°
D. 25°

Answers

Answer:

105

Step-by-step explanation:

180-75=105

Answer:

75*

Step-by-step explanation:

Angles 4 & 8 are the same because the two parallel horizontal lines have one line going through them and angels 4 & 8 are in the same corner on the two lines. Also, angle 4 has a measure of 75* and if angles 4 & 8 are the same, they will also have the same measure.

A net and four figures are shown:

A net is shown on top. The net consists of 6 rectangles. There are 4 rectangles in a row, and there are 2 identical rectangles on the top and base of the third rectangle in the row. There are four solid figures below the net. The figure labeled 1 is a square pyramid, the figure labeled 2 is a cube, the figure labeled 3 is a rectangular prism, and the figure labeled 4 is a pyramid with a pentagonal base.

Which figure shown can be formed from the net? (Input the number only.)

Numerical Answers Expected!

Answers

the answer is 3

if you look at all the bases of the figures it doesn’t match to the net so it would be impossible for them to be the answer

Answer:

Step-by-step explanation:

Does the equation y = 4.2x represent a proportional relationship? Choose the correct response.

A. Yes. The constant of proportionality is 4.2.
B. Yes. The equation is linear.
C. No. The equation is linear.
D. No. There is a rate of change of 4.2.

Answers

i agree with the answer the guy saif

Answer:

A .The constant of proportionality is 4.2

Step-by-step explanation:

The reason its a is because the rate of increase is always going to be be multiplied by 4.2 to stay increasing on a graph. So the constant change is always going to have to do something with 4.2

Can someone plz help me

Answers

Answer:

Step-by-step explanation:

80X2 because you have to know how much it will take to get from to home

B cause 80 x 2 hope you had a good day

BEST ANSWER GET BRAIN LIEST a thanks 5 star review AND 10 points

Answers

It’s b and d if you can add 2

This is worth 15 points please help. What is the equation in y=mx+b. Read the directions correctly, please.

Answers

Answer:

y= 0.75x+2.50

Step-by-step explanation:

the answer to this is y=0.75x+2.50

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