please help 7th grade math

Please Help 7th Grade Math

Answers

Answer 1

Answer: 3.9

Step-by-step explanation: calculator

1. 39 divided by 4 divided by 2.50


Related Questions

Write the word sentence as an equation. Then solve the equation

the difference between a number p and 6 is -14

Answers

Answer:

-8

Step-by-step explanation:

The difference between a number P and 6 is -14.

then;

[tex]p - 6 = - 14 \\ p = - 14 + 6 \\ p = - 8[/tex]

Whitch of the following equations best describes the line containing all three points ?

Answers

Attach a picture to this question so I know what to look for.

Find two positive numbers whose difference is 13 and whose product is 230

Answers

Answer:

23 and 10

Step-by-step explanation:

23 - 10 = 13

23 * 10 = 230

Answer:

10 and 23

Step-by-step explanation:

The perimeter of a triangle is 7a-11b . If two of its sides are 2a+b and a-9b, what is the third side?

Answers

Answer:

4a plus or minus 1b

Step-by-step explanation:

How did the equation shift from the parent function? y = f(x - 4).

Answers

Answer:

x

=4

y=0 and x=4

x=  

f

y

+4

Step-by-step explanation:

Factor the trinomial
10x^2+11X-6

Answers

Answer:

Not factorable with rationable numbers

Step-by-step explanation:

You cannot factor this expression with rationable numbers.

(5x-2)(2x+3) is the correct answer:)

What is the value of x

Answers

Answer:

90-56= 34

good luck!

Answer:

90-56=34

Step-by-step explanation:

90 degrees minus the given amount of the other degrees will give u the answer 90-56=34

What is the slope for this table?

Answers

Answer:

-1/2

Step-by-step explanation:

take two points and apply

(8-7)/(0-2)=1/-2=-1/2

A man standing near a radio station antenna observes that the angle of elevation to the top of the antenna is 64 He then walks 68 feet further away and observes that the angle of elevation to the top of the antenna is 43 Find the height of the antenna to the nearest foot.

Answers

The height of the radio station antenna is approximately 116 feet to the nearest foot.

From the diagram in the attached image

[tex]h=\text{the height of the radio station antenna}\\x=\text{the distance from the foot of the radio station antenna to where the man stood at first}[/tex]

we now have the following relationships

[tex]tan64^\circ=\frac{h}{x}\\\\\implies x=\frac{h}{tan64^\circ}[/tex]

and

[tex]tan43^\circ=\frac{h}{68+x}\\\\\implies x=\frac{h}{tan43^\circ}-68[/tex]

we can equate the two relationships to eliminate [tex]x[/tex].

[tex]\frac{h}{tan64^\circ}=\frac{h}{tan43^\circ}-68[/tex]

solving for the height of the radio station antenna, [tex]h[/tex], we get

[tex]h=\frac{68\times tan43^\circ \times tan64^\circ}{tan64^\circ -tan43^\circ}\approx 116ft\text{ (to the nearest foot)}[/tex]

Learn more about angle of elevation here: https://brainly.com/question/12483071

Marion and Stefan played a game called "Go." Marion won five times the difference between the number of games Stefan won and the number four. If Marion won fifteen games, then how many games did Stefan win?

Answers

Answer:

7

Step-by-step explanation:

Assume Stefan won x games,

Marion would win: 5(x-4) games,

5(x-4)= 15

5x-20= 15

5x= 15+20

5x= 35

x= 7.

Find the perimeter. Simplify the answer.

Answers

Answer:

21u-26

Step-by-step explanation:

add all the side lengths together: 7u + 3u -10 + 6u - 8 + 5u - 8 = (7 + 3 + 6 + 5)u + (-10 -8 -8) = 21u - 26




Find the values of a and b. The diagram is not drawn to scale.

Answers

Answer:

36

Step-by-step explanation:

Same side

Answer:

a = 144°, b = 67°

Step-by-step explanation:

a is supplementary with 36 and b is supplementary with 113. Same side interior angles.

Supplementary angles sum to 180°

a = 180 - 36 = 144b = 180 - 113 = 67

What are the values of each variable?

Answers

Answer:

3x-10=x+15+25

3x-10=x+40

3x-x=40+10

2x=50

x=50/2

x=25

Solve the slope for the table.

Answers

Answer:

Slope = -1

Step-by-step explanation:

7-9/-1+3=-2/2=-1 : Slope Formula

The pic of the question is down below
Show all working

Answers

Answer:

GF ≈ 11.2HD ≈4.3∠HDE ≈68.8°

Step-by-step explanation:

The relevant trig relations are ...

  Tan = Opposite/Adjacent

  Sin = Opposite/Hypotenuse

These tell us ...

  tan(43°) = GH/DG

  GH = DG·tan(43°) = (12 cm)·tan(43°) ≈ 11.2 cm

and ...

  sin(HDE) = EH/ED = (11.2 cm)/(12 cm)

  ∠HDE = arcsin(11.2/12) ≈ 68.8°

The length HD can be found from ...

  tan(68.8°) = HE/HD

  HD = HE/tan(68.8°) = (11.2 cm)/tan(68.8°) ≈ 4.3 cm

_____

Additional comments

The values shown in the solution here are rounded according to the problem statement. The values actually used in the calculations are the full-precision calculator values. Rounding is only done on the final answers.

Find UV if HV = 12. Please help!!

Answers

If HV= 12 and we are trying to find UV. We just need to divide by 2 because UV is half. So UV=6

hope that helped!

Answer:

..

Step-by-step explanation:

If HV= 12 and we are trying to find UV. We just need to divide by 2 because UV is half. UV=6

Write each pair of quantities as a unit rate.
A) 225 heartbeats in 3 mins
B) $18.70 for 2 tickets.
C)$6.75 for 3 golf balls
D) $78.00 for 8-hour work

Answers

A) 75heartbeats per min
B) $9.35 per ticket
C) 2.25 per golf ball
D) $9.75 per hour

Use the properties of operations to write an expression equivalent to 4x + 1/2 + 2x - 3

Answers

Hey there!

4x + 1/2 + 2x - 3

COMBINE the LIKE TERMS

= (4x + 2x) + (1/2 - 3)

TRYING to SIMPLIFY THEM

4x + 2x

= 6x

1/2 - 3

= -5/2

ANSWER

6x + (-5/2)

Therefore, your answer should be: 6x + -5/2

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)


If OQ and RT are parallel lines and mZRSP = 55°, what is mZQPS?

Answers

Answer:

55 degrees

Step-by-step explanation:

Angles RSP and QPS are Alternate Interior Angles. Given that OQ and RT are parallel, alternate interior angles are always congruent, meaning they have the same measure.

So if angle RSP is 55 degrees and it is congruent to angle QPS, then angle QPS is 55 degrees.

what is 4 - (-10) equal too? explain in your own words and why so

Answers

Answer:

14

Step-by-step explanation:

When there are 2 -, they both create a +. the brackets are removed and you get 4--10, which is equal to 4+10 which = 14



Please help me answer!

Answers

Answer:

what is the question?

Step-by-step explanation:

Slope of line |
Slope of line |
Line I and II are parallel
/perpendicular/ neither
7/2
-(7/2)

Answers

Answer:

Line I and II are perpendicular

Step-by-step explanation:

Parallel is when the slope is the same

Perpendicular is when the slope is the opposite (positive and negative)

Hope this helps!

PLEASE HELP!!!! ASAP

Answers

Answer:

78/5

Step-by-step explanation:

1/5 5x + 12 = 18

PLSSSSS HELPPPPP ASAAPPPP

Answers

Answer:

2 inches per hour

Step-by-step explanation:

The first snowfall was in two hours with an accumulation of 4 inches, so 4/2=2 inches per hour

Help!!!! This is a triangle and I really don’t understand it :(

Answers

Answer: x is 3

Step-by-step explanation:

6x-5=4x+1

x = 3

Please help me solve this problem ASAP !

Answers

Both triangles have a sum of 180*

PLS HELP WILL MARK BRAINLIEST!

Answers

Answer:

According to me answer is option E

Step-by-step explanation:

If you like my answer than please mark me brainliest thanks

BRAINLIEST
Solve for X. Round to the nearest tenth.

Answers

Answer:

Question=Q

Q8=60.1

Q9=

Cody sold half of his comic books and then bought seventeen more. He now has 41. With how many did he begin?

Answers

Answer:

He begun with 48.

Step-by-step explanation:

48/2 = 24

24+17 = 41

Answer:

46

Step-by-step explanation:

I subtracted 17 from 41 and got 23 so if you add 23 by 23 half you get 46, so in turn Cody started out at 46.

Write the function in slope-intercept form
4y=-8x-10
WILL MARK BRAINLIEST

Answers

Answer:

Y=2x- 5

       -----

          2

Step-by-step explanation:

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